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Wikibooks.org Wikibooks

Wikibooks is a Wikimedia community creating a free library of educational textbooks that anyone can edit.

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Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 09/16/2019

Wikibooks.org receives about three hundred thousand unique visitors and four hundred thousand pageviews per day. The estimated value of wikibooks.org is five million USD. Each unique visitor makes about 1.39 pageviews on average.

Over the time wikibooks.org has been ranked as high as 1,470 in the world, while most of its traffic comes from United States, where it reached as high as 2,597 position.

It’s good for wikibooks.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 04, 2019) wikibooks.org has a valid and up-to-date wildcard SSL certificate that expires on November 22, 2019.

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

Mobile-Friendly test indicates that wikibooks.org is well optimized for mobile and tablet devices, however website page loading time could be improved.

Global Rank
1,926
Average Load Time
0.97sec
Links In Count
13,561
Website Value
$4.7 M
Overview
Last Updated: 09/21/2019
Overall result - "wikibooks.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 "wikibooks.org" OK.

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

Google Safe Search
Last Updated: 10/10/2016
GSS "wikibooks.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 "wikibooks.org".
"wikibooks.org" is not a phishing page.
"wikibooks.org" does not install unwanted software.
"wikibooks.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 "wikibooks.org" OK.

McAfee assesses wikibooks.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 wikibooks.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
WOT "wikibooks.org" VERY GOOD.

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

SSL Information
Domain *.wikipedia.org
Issuer GlobalSign Organization Validation CA - SHA256 - G2
Algorithm RSA-SHA256
Valid form 11/08/2018
Expiration 11/22/2019
Signed Certificate is not self signed
Additional Domains *.wikipedia.org
wikimedia.org
mediawiki.org
wikibooks.org
wikidata.org
wikinews.org
wikiquote.org
wikisource.org
wikiversity.org
wikivoyage.org
wiktionary.org
wikimediafoundation.org
w.wiki
wmfusercontent.org
*.m.wikipedia.org
*.wikimedia.org
*.m.wikimedia.org
*.planet.wikimedia.org
*.mediawiki.org
*.m.mediawiki.org
*.wikibooks.org
*.m.wikibooks.org
*.wikidata.org
*.m.wikidata.org
*.wikinews.org
*.m.wikinews.org
*.wikiquote.org
*.m.wikiquote.org
*.wikisource.org
*.m.wikisource.org
*.wikiversity.org
*.m.wikiversity.org
*.wikivoyage.org
*.m.wikivoyage.org
*.wiktionary.org
*.m.wiktionary.org
*.wikimediafoundation.org
*.wmfusercontent.org
wikipedia.org
Server Location
San Francisco
California
United States
ASN Information

ASN ID: 14907
ASN Title: WIKIMEDIA - Wikimedia Foundation Inc., US

Last Update: 05/29/2019

#
# 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: 14907
ASName: WIKIMEDIA
ASHandle: AS14907
RegDate: 2006-09-27
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/14907

OrgName: Wikimedia Foundation Inc.
OrgId: WIKIM
Address: 1 Montgomery Street
Address: Suite 1600
City: San Francisco
StateProv: CA
PostalCode: 94104
Country: US
RegDate: 2006-05-30
Updated: 2017-10-04
Ref: https://rdap.arin.net/registry/entity/WIKIM

OrgNOCHandle: WIKIM-ARIN
OrgNOCName: Wikimedia NOC
OrgNOCPhone: +1-415-839-6885
OrgNOCEmail: noc@wikimedia.org
OrgNOCRef: https://rdap.arin.net/registry/entity/WIKIM-ARIN

OrgTechHandle: MBE96-ARIN
OrgTechName: Bergsma, Mark
OrgTechPhone: +1-415-839-6885
OrgTechEmail: mark@wikimedia.org
OrgTechRef: https://rdap.arin.net/registry/entity/MBE96-ARIN

OrgTechHandle: YOUNS-ARIN
OrgTechName: Younsi, Arzhel
OrgTechPhone: +1-415-839-6885
OrgTechEmail: ayounsi@wikimedia.org
OrgTechRef: https://rdap.arin.net/registry/entity/YOUNS-ARIN

OrgTechHandle: LIAMB-ARIN
OrgTechName: Liambotis, Faidon
OrgTechPhone: +1-415-839-6885
OrgTechEmail: faidon@wikimedia.org
OrgTechRef: https://rdap.arin.net/registry/entity/LIAMB-ARIN

OrgAbuseHandle: WNA11-ARIN
OrgAbuseName: Wikimedia Network Abuse
OrgAbusePhone: +1-415-839-6885
OrgAbuseEmail: abuse@wikimedia.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/WNA11-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.
#

HTML Metatags
Title
Wikibooks
The title is too short, it may not provide search engines and users with enough information to understand the relevancy of your page. You should try to keep the length of the title somewhere between at least 10 characters and 70 characters.
Description
Wikibooks is a Wikimedia community creating a free library of educational textbooks that anyone can edit.
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
Incorrect Language
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
Images
Attribute ALT
Line 283, ...<img src="//upload.wikimedia.org/wikipedia/meta/9/9b/Wikipedia-lo...
Line 287, ...<img src="//upload.wikimedia.org/wikipedia/meta/3/3b/Wiktionary-l...
Line 291, ...<img src="//upload.wikimedia.org/wikipedia/meta/a/aa/Wikinews-log...
Line 295, ...<img src="//upload.wikimedia.org/wikipedia/meta/c/c8/Wikiquote-lo...
Line 299, ...<img src="//upload.wikimedia.org/wikipedia/meta/0/00/Wikidata-log...
Line 303, ...<img src="//upload.wikimedia.org/wikipedia/meta/8/8c/Wikispecies-...
Line 307, ...<img src="//upload.wikimedia.org/wikipedia/meta/2/27/Wikisource-l...
Line 311, ...<img src="//upload.wikimedia.org/wikipedia/meta/a/af/Wikiversity-...
Line 315, ...<img src="//upload.wikimedia.org/wikipedia/meta/7/74/Wikivoyage-l...
Line 319, ...<img src="//upload.wikimedia.org/wikipedia/meta/9/90/Commons-logo...
Line 323, ...<img src="//upload.wikimedia.org/wikipedia/meta/1/16/MediaWiki-lo...
Line 327, ...<img src="//upload.wikimedia.org/wikipedia/meta/f/f2/Meta-logo_si...
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.

H1
1 H1 tag(s).
Your H1 introduces the topic your page is all about, just as a title tells a reader what a book is all about.
H2
3 H2 tag(s).
The H2s are akin to book chapters, describing the main topics you’ll cover in sections of the article.
H3
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.
H4
H5
H6
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
Code To Text Ratio
6.79 %
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.
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
Line 10, /static/favicon/wikibooks.ico
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
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
287 record(s)
Other User-Agent
33 record(s)
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 failed Loaded (/sitemap.xml)
Your site will benefit from having a sitemap.
WHOIS

Domain Name: WIKIBOOKS.ORG
Registry Domain ID: D98510924-LROR
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2012-05-09T00:25:42Z
Creation Date: 2003-07-19T23:13:10Z
Registry Expiry Date: 2021-07-19T23:13:10Z
Registrar Registration Expiration Date:
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Reseller:
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registrant Organization: Wikimedia Foundation, Inc.
Registrant State/Province: CA
Registrant Country: US
Name Server: NS0.WIKIMEDIA.ORG
Name Server: NS1.WIKIMEDIA.ORG
Name Server: NS2.WIKIMEDIA.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2018-11-08T13:01:26Z

DNS Records
HostA RecordTTL
wikibooks.org198.35.26.96600
HostMX RecordPriorityTTL
wikibooks.orgmx1001.wikimedia.org103600
wikibooks.orgmx2001.wikimedia.org503600
HostNS RecordTTL
wikibooks.orgns0.wikimedia.org86400
wikibooks.orgns1.wikimedia.org86400
wikibooks.orgns2.wikimedia.org86400
HostTXT RecordTTL
wikibooks.orggoogle-site-verification=djm1t6aP_Yt6WNSj834eVqD83qomWtLP0_1NveYTBfU600
wikibooks.orgv=spf1 include:wikimedia.org ~all600

ns0.wikimedia.org
TTL: 3600
Email address: hostmaster.wikimedia.org
Serial: 2019071607
Refresh: 43200
Retry: 7200
Expire: 1209600
Minimum: 3600

Warnings
Line: 201 Column: 70 - 84
"...Arabīyah"><bdi dir="rtl">العربي..."
Line: 207 Column: 59 - 73
"...e="Fārsi"><bdi dir="rtl">فارسی<..."
Line: 211 Column: 60 - 74
"...="ʿIvrit"><bdi dir="rtl">עברית<..."
Line: 259 Column: 121 - 150
"...</span> / <bdi lang="kk-Arab" dir="rtl">قازاقش..."
Line: 269 Column: 58 - 72
"...le="Urdu"><bdi dir="rtl">اردو</..."
Errors
Line: 259 Column: 45 - 65
"...lang="kk"><span lang="kk-Cyrl">Қазақш..."

Last tested: 07/03/2017

Desktop
Desktop Speed
78%
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://wikibooks.org/
https://wikibooks.org/
https://www.wikibooks.org/

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://upload.wikimedia.org/wikipedia/commons/b/bd/Bookshelf-40x201_6.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/0/00/W…ata-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/1/16/M…iki-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/2/27/W…rce-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/3/3b/W…ary-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/4/48/Wikibooks-logo_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/7/74/W…age-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/8/8c/W…ies-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/9/90/Commons-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/9/9b/W…dia-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/a/aa/W…ews-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/a/af/W…ity-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/c/c8/W…ote-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/f/f2/Meta-logo_sister_1x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/thumb/…or_search_icon.svg.png (expiration not specified)
https://meta.wikimedia.org/w/load.php?debug=false&…=scripts&skin=vector&* (5 minutes)
https://meta.wikimedia.org/w/load.php?debug=false&…y=styles&skin=vector&* (5 minutes)

Your page has 1 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.Optimize CSS Delivery of the following:

https://meta.wikimedia.org/w/load.php?debug=false&…y=styles&skin=vector&*

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 5.3KiB (28% reduction).

Compressing https://upload.wikimedia.org/wikipedia/meta/1/16/M…iki-logo_sister_1x.png could save 2.8KiB (40% reduction).
Compressing https://upload.wikimedia.org/wikipedia/meta/4/48/Wikibooks-logo_1x.png could save 2.5KiB (21% reduction).

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 661B (13% reduction).

Minifying https://www.wikibooks.org/ could save 661B (13% reduction) after compression.

Desktop Resource Breakdown
Total Resources21
Number of Hosts4
Static Resources18
JavaScript Resources1
CSS Resources1

Last tested: 07/03/2017

Mobile
Mobile Usability
88%
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 <a href="//ar.wikibooks.org/">العربية</a> and 4 others are close to other tap targets final.
The tap target <a href="//az.wikibooks.org/">Azərbaycanca</a> and 61 others are close to other tap targets final.

Mobile Speed
57%
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://wikibooks.org/
https://wikibooks.org/
https://www.wikibooks.org/

Your page has 1 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.Optimize CSS Delivery of the following:

https://meta.wikimedia.org/w/load.php?debug=false&…y=styles&skin=vector&*

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://upload.wikimedia.org/wikipedia/meta/0/05/W…ary-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/2/2e/M…iki-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/4/46/Bookshelf-40x20_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/4/4b/W…ews-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/4/4b/W…dia-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/4/4e/W…age-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/6/69/W…ity-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/6/6d/Wikibooks-logo_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/7/7d/W…ies-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/9/97/W…ote-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/a/a4/W…rce-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/a/ac/Meta-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/b/b6/Commons-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/b/b7/A_Wikimedia_project_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/e/ec/W…ata-logo_sister_2x.png (expiration not specified)
https://upload.wikimedia.org/wikipedia/meta/thumb/…or_search_icon.svg.png (expiration not specified)
https://meta.wikimedia.org/w/load.php?debug=false&…=scripts&skin=vector&* (5 minutes)
https://meta.wikimedia.org/w/load.php?debug=false&…y=styles&skin=vector&* (5 minutes)

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 4.2KiB (16% reduction).

Compressing https://upload.wikimedia.org/wikipedia/meta/6/6d/Wikibooks-logo_2x.png could save 4.2KiB (16% reduction).

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 661B (13% reduction).

Minifying https://www.wikibooks.org/ could save 661B (13% reduction) after compression.

Mobile Resource Breakdown
Total Resources21
Number of Hosts4
Static Resources18
JavaScript Resources1
CSS Resources1
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