aip.org - Home | American Institute of Physics

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 1.17 sec.
Last Checked: 08/07/2019

Aip.org receives about five thousand unique visitors and nine thousand pageviews per day. The estimated value of aip.org is two hundred thousand USD. Each unique visitor makes about 2.1 pageviews on average.

Over the time aip.org has been ranked as high as 7,157 in the world, while most of its traffic comes from United States, where it reached as high as 40,696 position.

It’s good for aip.org that their server is also located in United States, as that enables the majority of their visitors to benefit from a much faster page load time.

At the time of the last check (July 05, 2019) aip.org has a valid and up-to-date wildcard SSL certificate that expires on April 10, 2020.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust aip.org is quite a safe domain.

Mobile-Friendly test indicates that aip.org is well optimized for mobile and tablet devices.

Aip.org General Information

Global Rank

71,999

Average Load Time

2.28sec

Links In Count

11,091

Website Value

$166,440

Audience Geography. Where are aip.org visitors located?

Country	Rank
Hong Kong HK	25413
Sweden SE	26557
China CN	35060
Philippines PH	35240
Pakistan PK	36953
South Africa ZA	39345
United States US	40696
India IN	43133
Nigeria NG	45192
Canada CA	49258
Malaysia MY	56901
Australia AU	66735

Country	Percent of Pageviews
United States US	38%
China CN	14.5%
India IN	8%
Canada CA	2.4%
Hong Kong HK	2.3%
Sweden SE	1.2%
Pakistan PK	1.2%
Australia AU	1%
South Africa ZA	0.8%
Other	30.4%

Country	Percent of Visitors
United States US	31.4%
China CN	20.8%
India IN	9.6%
Canada CA	2.8%
Sweden SE	1.7%
Hong Kong HK	1.6%
Australia AU	1.5%
South Africa ZA	1.3%
Pakistan PK	1.2%
Other	27.9%

Where do visitors go on aip.org?

Subdomain	Pageviews
aip.org	24.24%
history.aip.org	23.26%
publishing.aip.org	20.57%
scitation.aip.org	6.65%
authorportal.aip.org	4.65%
statisticalresearchcenter.aip.org	1.98%
ftp.aip.org	1.07%
printorders.aip.org	0.57%
authorservices.aip.org	0.53%
Other	16.49%

Subdomain	Pageviews per User
history.aip.org	2.8
authorportal.aip.org	2
publishing.aip.org	1.6
aip.org	1.4
authorservices.aip.org	1
printorders.aip.org	1
ftp.aip.org	1
statisticalresearchcenter.aip.org	1
scitation.aip.org	1

Subdomain	Reach
aip.org	32.52%
publishing.aip.org	24.22%
history.aip.org	15.58%
scitation.aip.org	12.16%
authorportal.aip.org	4.53%
statisticalresearchcenter.aip.org	3.13%
ftp.aip.org	1.97%
printorders.aip.org	0.9%
authorservices.aip.org	0.81%

How popular is aip.org?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	68452	15054	11	-26.14%
30	81082	20412	86	-28.29%
7	82330	10405	85	-14.84%
1	119459	3162	69	-4.57%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	91653	9317	61	-11.56%	2.1	20%
30	120945	44492	43	-43.98%	1.8	-22.03%
7	117638	10551	46	-11.88%	2	3%
1	189785	24292	28	-17.94%	2	-14.04%

Period	Global Rank	Global Rank Delta
past 3 months	71999	12988
past month	89162	27002
past week	87979	10070
yesterday	126968	10338

Aip.org Alexa Rank History

Alexa Rank shows how popular aip.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If aip.org has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to aip.org and pageviews on aip.org over the past 3 months.

Aip.org Safety Information

Overview

Last Updated: 08/23/2019

Overall result - "aip.org" is SAFE.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 01/12/2019

NCS "aip.org" OK.

Norton ConnectSafe evaluates aip.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/07/2019

GSS "aip.org" OK.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

Malware not found at "aip.org".
"aip.org" is not a phishing page.
"aip.org" does not install unwanted software.
"aip.org" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 01/09/2019

SA "aip.org" OK.

McAfee assesses aip.org for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze aip.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

WOT "aip.org" VERY GOOD.

The WOT calculates reputation of the aip.org. This reputation system receives ratings from users and information from third-party sources, assesses the aip.org for safety features and confirms, whether aip.org is suitable for children.

SSL Information

SSL Checker Tool

Domain	*.aip.org
Issuer	Go Daddy Secure Certificate Authority - G2
Algorithm	RSA-SHA256
Valid form	04/10/2017
Expiration	04/10/2020
Signed	Certificate is not self signed
Additional Domains	*.aip.org aip.org

Aip.org Server Information

Server Location

Geolocation Tool

Ashburn

Virginia

United States

ASN Information

ASN Lookup Tool

ASN ID: 14618
ASN Title: AMAZON-AES - Amazon.com, Inc., US

Last Update: 05/30/2019

ASN Whois

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 14618
ASName: AMAZON-AES
ASHandle: AS14618
RegDate: 2005-11-04
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/14618

OrgName: Amazon.com, Inc.
OrgId: AMAZO-4
Address: Amazon Web Services, Inc.
Address: P.O. Box 81226
City: Seattle
StateProv: WA
PostalCode: 98108-1226
Country: US
RegDate: 2005-09-29
Updated: 2017-01-28
Comment: For details of this service please see
Comment: http://ec2.amazonaws.com/
Ref: https://rdap.arin.net/registry/entity/AMAZO-4

OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-266-4064
OrgNOCEmail: amzn-noc-contact@amazon.com
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

RTechHandle: ANO24-ARIN
RTechName: Amazon EC2 Network Operations
RTechPhone: +1-206-266-4064
RTechEmail: amzn-noc-contact@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Aip.org SEO Analyzer

HTML Metatags

Title

Home | American Institute of Physics

The title has an optimal length. Search engines typically displays the first 50–70 characters of a title tag. If you keep your titles under 70 characters, our research suggests that you can expect about 90% of your titles to display properly.

Description

A federation of physical science societies, the American Institute of Physics advances, promotes, and serves the physical sciences for the benefit of humanity.

The description has optimal length. Keep in mind that the "optimal" length will vary depending on the situation, and your primary goal should be to provide value and drive clicks.

Encoding

UTF-8

You should always specify the encoding used for an HTML page. If you don't, you risk that characters in your content are incorrectly interpreted. This is not just an issue of human readability, increasingly machines need to understand your data too.

Language

Language not found

Identifying the language of your content allows you to automatically do a number of things, from changing the look and behavior of a page, to assisting search engines in extracting information. If part of the page uses text in a different language, you can add a language attribute with a different value to the element that surrounds that content.

Language Region

Not Found

Links Information

Empty

2 empty link(s)

Line 127, ...<a title="Physics Resources Center" class="sf-depth-1 menuparent ...
Line 140, ...<a id="main-content"></a>...

Subdomain

8 subdomain link(s). None of them have nofollow directive.

External

41 external link(s). None of them have nofollow directive.

Facebook

—

Twitter

—

Instagram

—

Images

Attribute ALT

8 out of 26 <img> tag(s) does not have an ALT attribute defined.

Line 99, ...<img src="https://www.aip.org/sites/default/files/masthead_aip2.p...
Line 190, ...<img typeof="foaf:Image" src="https://www.aip.org/sites/default/f...
Line 231, ...<img typeof="foaf:Image" src="https://www.aip.org/sites/default/f...
Line 237, ...<img typeof="foaf:Image" src="https://www.aip.org/sites/default/f...
Line 258, ...<img alt="" src="/sites/default/files/aipcorp/images/sitewide/aip...
Line 273, ...<img alt="" src="/sites/default/files/aipcorp/images/sitewide/pt-...
Line 386, ...<img src="/sites/default/files/aipcorp/images/logos/small/aapm.gi...
Line 431, ...<img src="/sites/default/files/masthead_aip2.png">...

As a general rule, search engines do not interpret the content of image files. The text provided in the <img alt> attribute enables the site owner to provide relevant information to the search engine and to the end user.

H1-H6 Tags Information

For search engines, <H> tags helps understand the structure of the text on a page better. For users, headings are like anchors in a wall of text, navigating them through the page and making it easier to digest. The <h1> tag reinforces the core keyword(s) found in the <title>, <description>, and the <body>. We recommend that the <h1> tag includes keywords that reflect the contents of the page and that it is not longer than 150 characters in length, but don’t overuse the tags and the keywords in them. Keep it readable for users.

There are multiple H1 tags on the page.

Line 143, ...<h1 class="title"></h1>...
Line 159, ...<h1>Dedicated to the advancement of the physical sciences</h1>...

Your H1 introduces the topic your page is all about, just as a title tells a reader what a book is all about. Remove redundant H1 tags from the page source, so that only one H1 tag exists.

7 H2 tag(s).

The H2s are akin to book chapters, describing the main topics you’ll cover in sections of the article.

4 H3 tag(s).

Subsequent headers, H3s to H6s, serve as additional sub-headings within each section, just as a book chapter may be split up by multiple sub-topics.

—

Iframes Information

iFrame

iFrames not found.

Since search engines consider the content in iframes to belong to another website, the best you can hope for is no effect on SEO. Iframes tend to neither help nor hurt your search engine ranking. For this reason, it’s best to refrain from using iframes on main pages that you want to rank high in search engine results. Instead, fill high-priority pages with useful, unique content and save iframes for other pages.

Code To Text Ratio

7.67 %

A good code to text ratio is anywhere from 25 to 70 percent. This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information. This has become especially apparent since search engines, such as Google, released the Panda update which placed importance on content-driven sites.

Duplicate Content Control

A canonical link is a special designation slipped into the code of a web page to indicate that another page should be considered the origin of the information when the search engine displays the findings to the user.

Broken Canonical Link

Broken canonical links not found.

Broken links do damage by stopping search engines website crawlers in their tracks - damaging your rankings by preventing Google, Yahoo, Bing, etc. from indexing the page, and negatively affecting user experience - by redirecting visitors to error pages.

Mismatched Canonical Links

Exactly one canonical link was found.

Linking to wrong pages of your website might mean that search engines will favor the wrong interpretation of your content in search results. This makes it more difficult for search engines bots to figure out which content you want to be indexed, and the same mistake might appear in search results.

Alternate Links

Broken alternate links not found.

Links to alternate versions of the page should not go via redirects, and should not link to missing or broken pages.

Favicons

Favicons are the little piece of graphic that represents your brand on browser tabs, bookmark lists, search history, search ads and even search results. These files are placed in a file called favicon.ico and placed in the root directory of a website. There are no direct SEO effects of having favicons. However, there may be indirect benefits such as increased usability of site and bookmarks. It makes your website look more professional and help a users to remember your site while browsing through multiple URLs. If you want to get mentioned benefits you have to specify icons for different web browsers and sometimes even for different mobiles.

Default Favicon

—

Backup icon for most desktop browsers (if no icon of the right size is found). Tag format <link rel="shortcut icon" href="path-to-16x16-icon.ico" type="image/x-icon" />

16x16 Optional Favicon

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Standard icon for outdated browsers or small resolution hand held devices. Tag format <link rel="icon" type="image/png" sizes="16x16" href="path-to-16x16.png">

32x32 Optional Favicon

—

Standard for most desktop browsers. Tag format <link rel="icon" sizes="32x32" href="path-to-32x32.png">

96x96 Optional Favicon

—

Mostly used as GoogleTV icon. Tag format <link rel="icon" type="image/png" sizes="96x96" href="path-to-96x96.png">

Default Apple Icon

—

Backup icon for apple devices (if no icon of the right size is found). Preferrable size 60x60. Tag format <link rel="apple-touch-icon" sizes="72x72" href="path-to-small-icon.png">

180x180 Apple Icon

—

iPhone 6 plus icons. Tag format <link rel="apple-touch-icon" sizes="180x180" href="path-to-180x180.png">

152x152 Apple Icon

—

iPad, iPad mini icons. Tag format <link rel="apple-touch-icon" sizes="152x152" href="path-to-icon-152x152.png">

167x167 Apple Icon

—

iPad Pro icon. Tag format <link rel="apple-touch-icon" sizes="167x167" href="path-to-167x167.png">

Robots.txt Information

Robots.txt is a text file that website owners can create to tell search engine bots how to crawl and index pages on their site.

Robots File

Robots File Loaded successfully (robots.txt)

You can have multiple lines of instructions to allow or disallow specific URLs and add multiple sitemaps. If you do not disallow a URL, then search engine bots assume that they are allowed to crawl it.

Disallow

36 record(s)

Other User-Agent

Not found

Default User-Agent

1 record(s)

Sitemap

A sitemap is an XML file where is provided information about each URL: when it was last updated, how often it changes, and how important it is in relation to other URLs in the site. Search engines crawling bots read this file to more efficiently and intelligently crawl your site and to find URLs that may be isolated from rest of the site's content.

Default Sitemap

Sitemap File Loaded successfully (sitemap.xml)

Using a sitemap doesn't guarantee that all the items in your sitemap will be crawled and indexed, however, your site will benefit from having a sitemap.

Aip.org Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: AIP.ORG
Registry Domain ID: D374817-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2018-09-28T18:35:46Z
Creation Date: 1989-09-21T04:00:00Z
Registry Expiry Date: 2022-09-20T04:00:00Z
Registrar Registration Expiration Date:
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8003337680
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: AMERICAN INSTITUTE OF PHYSICS
Registrant State/Province: NY
Registrant Country: US
Name Server: DNS-5B.AIP.ORG
Name Server: DNS-5A.AIP.ORG
Name Server: DNS-7B.AIP.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2018-11-08T15:25:49Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
aip.org	34.225.67.115	30

Host	MX Record	Priority	TTL
aip.org	aip-org.mail.protection.outlook.com	0	60

Host	NS Record	TTL
aip.org	dns-5d.aip.org	30
aip.org	dns-5e.aip.org	30
aip.org	dns-5c.int.aip.org	30
aip.org	dns-7b.aip.org	30

Host	TXT Record	TTL
aip.org	eqc7iPI4KH9AiVp4wTqJgao9z1Ywb8VkYST1xc9+wJAboIZsujIrkbvpoZE010tw/ovSYJIynGu4DR6xsIblKA==	30
aip.org	atlassian-domain-verification=jMmQozrcDMgws3DYJWL+PRnmQfkmUGKxjOq4ldp/hM/dRdWtksGJ24wnQYdYXgRg	86400
aip.org	MS=ms61619254	3600
aip.org	hROy3XhFu6TqJdJGYB5hIEDHexGNeDFUlGQfag81l30Bt5/6JYkuHwDQvCC+suZpro21hrD5cQZw8whwmpqQ3w==	30
aip.org	v=spf1 mx ip4:212.54.151.65/32 ip4:212.54.151.66/32 ip4:52.144.53.65/32 ip4:52.144.53.66/32 include:spf.protection.outlook.com ~all	60

dns-5c.int.aip.org
TTL: 30
Email address: postmaster.aip.org
Serial: 251784
Refresh: 10800
Retry: 3600
Expire: 2592000
Minimum: 30

Aip.org HTML Validation

HTML Validation Tool

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 54
"...<!DOCTYPE html PUBLIC "-//W3C//DTD HTML+RDFa 1.1//EN">
<html..."

Attribute “xmlns:og” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:article” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:book” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:profile” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:video” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:product” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:content” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:dc” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:foaf” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:rdfs” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:sioc” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:sioct” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:skos” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute “xmlns:xsd” not allowed here.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

The “version” attribute on the “html” element is obsolete. You can safely omit it.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Line: 18 Column: 49 - 51
"...LSchema#">

<head profile="http://www.w3.org/1999/xhtml/vocab">
<meta..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 32 Column: 1 - 62
"...|</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<link..."

Bad value “https://fonts.googleapis.com/css?family=Droid+Sans|Open+Sans+Condensed:700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Line: 58 Column: 1 - 121
"...</script>
<link href='https://fonts.googleapis.com/css?family=Droid+Sans|Open+Sans+Condensed:700' rel='stylesheet' type='text/css'>    
<..."

Duplicate attribute “class”.

Line: 63 Column:  - 72
"...ome2016"  class="html front no..."
Line: 150 Column:  - 102
"...on-menu"  class="panel-pane pa..."
Line: 173 Column:  - 112
"...p-story"  class="panel-pane pa..."
Line: 216 Column:  - 98
"...ta-left"  class="panel-pane pa..."
Line: 229 Column:  - 108
"...a-right"  class="panel-pane pa..."
Line: 242 Column:  - 109
"...lishing"  class="panel-pane pa..."
Line: 257 Column:  - 103
"...d="ptol"  class="panel-pane pa..."
Line: 272 Column:  - 107
"...rograms"  class="panel-pane pa..."
Line: 302 Column:  - 114
"...eatured"  class="panel-pane pa..."
Line: 382 Column:  - 112
"...-across"  class="panel-pane pa..."

Attribute “alt” not allowed on element “input” at this point.

Line: 107 Column: 4 - 116
"...11" />
   <input class="gsc-search-button" type="submit" value="Search" alt="search aip" name="searchaip" id="searchaip" />
</for..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 221 Column: 9 - 115
"...>
    <h2><img src="/sites/default/files/aipcorp/images/homepage/cta-us-capitol-dome.jpg" height="450" width="450" /></h2>
..."
Line: 390 Column: 35 - 104
"...apm.org/"><img src="/sites/default/files/aipcorp/images/logos/small/aapm.gif" /></a><b..."
Line: 434 Column: 34 - 85
"....aip.org"><img src="/sites/default/files/masthead_aip2.png" /></a></..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 429 Column: 7 - 29
"...x">
      <style type="text/css">.aip-f..."

Warnings

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:article” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:book” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:video” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:product” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:content” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:dc” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:foaf” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:rdfs” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:sioc” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:sioct” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:skos” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Attribute with the local name “xmlns:xsd” is not serializable as XML 1.0.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Consider avoiding viewport values that prevent users from resizing documents.

Line: 20 Column: 1 - 122
"...utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
<meta..."

Empty heading.

Line: 140 Column: 1 - 18
"...  

    

<h1 class="title"></h1>
..."
Line: 221 Column: 5 - 8
"...ent">
    <h2><img s..."

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Line: 16 Column: 55 - 48
"... 1.1//EN">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" version="HTML+RDFa 1.1" dir="ltr"
  xmlns:og="http://ogp.me/ns#"
  xmlns:article="http://ogp.me/ns/article#"
  xmlns:book="http://ogp.me/ns/book#"
  xmlns:profile="http://ogp.me/ns/profile#"
  xmlns:video="http://ogp.me/ns/video#"
  xmlns:product="http://ogp.me/ns/product#"
  xmlns:content="http://purl.org/rss/1.0/modules/content/"
  xmlns:dc="http://purl.org/dc/terms/"
  xmlns:foaf="http://xmlns.com/foaf/0.1/"
  xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
  xmlns:sioc="http://rdfs.org/sioc/ns#"
  xmlns:sioct="http://rdfs.org/sioc/types#"
  xmlns:skos="http://www.w3.org/2004/02/skos/core#"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema#">

<hea..."

Aip.org Desktop Insights

Desktop Page Insights Tool

Last tested: 05/24/2017

Desktop

Desktop Speed

69%

Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 241.5KiB (66% reduction).

Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…ers-award-deadline.jpg could save 32.7KiB (86% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…athmatical-physics.jpg could save 28.6KiB (89% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…mage-with-masthead.jpg could save 27.6KiB (68% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…p-publishing-image.jpg could save 25.9KiB (68% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…ysics-fluids-seeds.jpg could save 23.3KiB (68% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…ysics-fluids-shale.jpg could save 20.1KiB (70% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…server-winter-2017.jpg could save 17.7KiB (69% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…em-teachers-report.jpg could save 13.4KiB (69% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…c-ptjobs-dream-job.jpg could save 11.3KiB (67% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…rchives-may-photos.jpg could save 11.1KiB (65% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…ge/fc-issn-origami.jpg could save 10.5KiB (62% reduction).
Compressing and resizing https://www.aip.org/sites/default/files/aipcorp/im…-plasmas-spacedust.jpg could save 7.5KiB (64% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…e/programs-careers.jpg could save 2.3KiB (27% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…/programs-students.jpg could save 2.3KiB (23% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…/header-background.jpg could save 2.2KiB (29% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…y-programs-meitner.jpg could save 1.7KiB (19% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…r-first-background.jpg could save 1.4KiB (41% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…ogos/logo-osa-2016.png could save 1.2KiB (40% reduction).
Compressing https://www.aip.org/sites/default/files/masthead_aip2.png could save 769B (21% reduction).

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 56 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.Remove render-blocking JavaScript:

https://www.aip.org/sites/default/files/js/js_koCc…i2XBC_neUHS39mzorG0.js
https://www.aip.org/sites/default/files/js/js_MbKm…vXXgATEd6TqNd7BRvh4.js
https://www.aip.org/sites/default/files/js/js_A7rp…6nDi5F9K_IIz7d5_hqg.js
https://www.aip.org/sites/default/files/js/js_cPkH…vYcsdpe37Vga9Hr_DRE.js
https://www.aip.org/sites/default/files/js/js_KKXe…BOOEQ4So07TqB0TKVTE.js
https://www.aip.org/sites/default/files/js/js_43n5…iacVZke14b0VlvSA554.js
https://use.typekit.net/gsl1mwi.js
https://cse.google.com/coop/cse/brand?form=searchb…4534619134:zoo0-stuoya

Optimize CSS Delivery of the following:

https://www.aip.org/modules/system/system.base.css?oqey19
https://www.aip.org/modules/system/system.menus.css?oqey19
https://www.aip.org/modules/system/system.messages.css?oqey19
https://www.aip.org/modules/system/system.theme.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque…ui.core.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque…i.theme.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque…cordion.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque….button.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque…sizable.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque….dialog.min.css?oqey19
https://www.aip.org/sites/all/modules/contrib/jque…ui.tabs.min.css?oqey19
https://www.aip.org/sites/all/libraries/owl-carous…wl.carousel.css?oqey19
https://www.aip.org/sites/all/libraries/owl-carousel/owl.theme.css?oqey19
https://www.aip.org/sites/all/libraries/owl-carous…transitions.css?oqey19
https://www.aip.org/modules/aggregator/aggregator.css?oqey19
https://www.aip.org/modules/book/book.css?oqey19
https://www.aip.org/sites/all/modules/colorbox_nod…lorbox_node.css?oqey19
https://www.aip.org/sites/all/modules/date/date_api/date.css?oqey19
https://www.aip.org/sites/all/modules/date/date_po…epicker.1.7.css?oqey19
https://www.aip.org/sites/all/modules/date/date_re…epeat_field.css?oqey19
https://www.aip.org/sites/all/modules/fences/field.css?oqey19
https://www.aip.org/sites/all/modules/fitvids/fitvids.css?oqey19
https://www.aip.org/sites/all/modules/contrib/logi…gintoboggan.css?oqey19
https://www.aip.org/modules/node/node.css?oqey19
https://www.aip.org/modules/search/search.css?oqey19
https://www.aip.org/modules/user/user.css?oqey19
https://www.aip.org/sites/all/modules/views/css/views.css?oqey19
https://www.aip.org/sites/all/modules/colorbox/sty…orbox_style.css?oqey19
https://www.aip.org/profiles/acquia/modules/ctools/css/ctools.css?oqey19
https://www.aip.org/sites/all/modules/easychart/mo…/css/plugin.css?oqey19
https://www.aip.org/sites/all/modules/panels/css/panels.css?oqey19
https://www.aip.org/sites/all/modules/jquery_ui_fi…lter_dialog.css?oqey19
https://www.aip.org/sites/all/modules/panels/plugi…col_stacked.css?oqey19
https://www.aip.org/sites/all/modules/addtoany/addtoany.css?oqey19
https://www.aip.org/sites/all/libraries/superfish/css/superfish.css?oqey19
https://www.aip.org/sites/all/libraries/superfish/…smallscreen.css?oqey19
https://www.aip.org/sites/all/libraries/superfish/style/space.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/css/alpha-reset.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/c…lpha-mobile.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/css/alpha-alpha.css?oqey19
https://www.aip.org/sites/all/themes/omega/omega/css/formalize.css?oqey19
https://www.aip.org/sites/all/themes/omega/omega/c…ga-branding.css?oqey19
https://www.aip.org/sites/all/themes/omega/omega/css/omega-menu.css?oqey19
https://www.aip.org/sites/all/themes/omega/omega/css/omega-forms.css?oqey19
https://www.aip.org/sites/all/themes/omega/omega/c…ega-visuals.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/global.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…pha-default.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…ault-narrow.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/c…t-narrow-12.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…pha-default.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…ault-normal.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/c…t-normal-12.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…pha-default.css?oqey19
https://www.aip.org/sites/all/themes/aipcorp/css/a…efault-wide.css?oqey19
https://www.aip.org/sites/all/themes/omega/alpha/c…ult-wide-12.css?oqey19
https://fonts.googleapis.com/css?family=Droid+Sans|Open+Sans+Condensed:700

Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://aip.org/
http://www.aip.org/
https://www.aip.org/

Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 19.8KiB (21% reduction).

Minifying https://www.aip.org/sites/default/files/js/js_cPkH…vYcsdpe37Vga9Hr_DRE.js could save 8.4KiB (38% reduction) after compression.
Minifying https://www.aip.org/sites/default/files/js/js_koCc…i2XBC_neUHS39mzorG0.js could save 5KiB (13% reduction) after compression.
Minifying https://www.aip.org/sites/default/files/js/js_MbKm…vXXgATEd6TqNd7BRvh4.js could save 4.9KiB (16% reduction) after compression.
Minifying https://www.aip.org/sites/default/files/js/js_A7rp…6nDi5F9K_IIz7d5_hqg.js could save 1,004B (47% reduction) after compression.
Minifying https://www.aip.org/sites/default/files/js/js_43n5…iacVZke14b0VlvSA554.js could save 627B (31% reduction) after compression.

Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://use.typekit.net/gsl1mwi.js (10 minutes)
https://dnn506yrbagrg.cloudfront.net/pages/scripts/0044/9601.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)

Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 8.6KiB (28% reduction).

Minifying https://www.aip.org/sites/all/themes/aipcorp/css/global.css?oqey19 could save 5.4KiB (26% reduction) after compression.
Minifying https://www.aip.org/sites/all/themes/aipcorp/css/a…ault-normal.css?oqey19 could save 1KiB (31% reduction) after compression.
Minifying https://www.aip.org/modules/system/system.base.css?oqey19 could save 825B (44% reduction) after compression.
Minifying https://www.aip.org/sites/all/themes/aipcorp/css/a…efault-wide.css?oqey19 could save 732B (27% reduction) after compression.
Minifying https://www.aip.org/sites/all/themes/aipcorp/css/a…ault-narrow.css?oqey19 could save 631B (33% reduction) after compression.

Desktop Resource Breakdown

Total Resources	109
Number of Hosts	10
Static Resources	98
JavaScript Resources	12
CSS Resources	54

Aip.org Mobile Insights

Mobile Page Insights Tool

Last tested: 05/24/2017

Mobile

Mobile Usability

96%

Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <div class="owl-carousel-b…usel owl-theme">Why Space Dust…Science <></div> and 3 others are close to other tap targets.
The tap target <a href="http://acousticalsociety.org">Acoustical Society of America</a> and 9 others are close to other tap targets.

Mobile Speed

62%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 56 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://aip.org/
http://www.aip.org/
https://www.aip.org/

Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 19.8KiB (21% reduction).

Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://use.typekit.net/gsl1mwi.js (10 minutes)
https://dnn506yrbagrg.cloudfront.net/pages/scripts/0044/9601.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)

Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 8.6KiB (28% reduction).

Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 10.5KiB (25% reduction).

Compressing https://www.aip.org/sites/default/files/aipcorp/im…e/programs-careers.jpg could save 2.3KiB (27% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…/programs-students.jpg could save 2.3KiB (23% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…/header-background.jpg could save 2.2KiB (29% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…y-programs-meitner.jpg could save 1.7KiB (19% reduction).
Compressing https://www.aip.org/sites/default/files/aipcorp/im…ogos/logo-osa-2016.png could save 1.2KiB (40% reduction).
Compressing https://www.aip.org/sites/default/files/masthead_aip2.png could save 769B (21% reduction).

Mobile Resource Breakdown

Total Resources	108
Number of Hosts	10
Static Resources	97
JavaScript Resources	12
CSS Resources	54

Aip.org Typos

ww.aip.org
www.aip.org
qww.aip.org
wqww.aip.org
qwww.aip.org
aww.aip.org
waww.aip.org
awww.aip.org
sww.aip.org
wsww.aip.org
swww.aip.org
eww.aip.org
weww.aip.org
ewww.aip.org
2ww.aip.org
w2ww.aip.org
2www.aip.org
3ww.aip.org
w3ww.aip.org
3www.aip.org
wqw.aip.org
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