Show

Cena.com.cn 电子信息产业网

电子信息产业网是电子信息产业权威门户网站,创建于1999年。目前设有半导体、智能终端、家用电器、LED、新能源、云计算、移动互联、产品评测等频道,提供最具公信力的产业资讯、企业动态、新技术发布,展会专题、信息搜索、专家访谈等内容,充分展现出电子行业新媒体的“宽度”(海量信息)、“速度”和互动度。

Need help with your SEO?
Online Status
Offline

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

Cena.com.cn receives about ten thousand unique visitors and forty thousand pageviews per day. The estimated value of cena.com.cn is six hundred thousand USD. Each unique visitor makes about 3.2 pageviews on average.

Over the time cena.com.cn has been ranked as high as 2,465 in the world, while most of its traffic comes from China, where it reached as high as 1,865 position.

Cena.com.cn is registered under .CN top-level domain. Check other websites in .CN zone.

At the time of the last check (December 07, 2019) cena.com.cn has an invalid SSL certificate.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust cena.com.cn is quite a safe domain.

Global Rank
18,372
Average Load Time
1.45sec
Links In Count
432
Website Value
$639,480
Overview
Last Updated: 12/07/2019
Overall result - "cena.com.cn" 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 "cena.com.cn" OK.

Norton ConnectSafe evaluates cena.com.cn for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 10/13/2016
GSS "cena.com.cn" 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 "cena.com.cn".
"cena.com.cn" is not a phishing page.
"cena.com.cn" does not install unwanted software.
"cena.com.cn" 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: 01/10/2019
SA "cena.com.cn" OK.

McAfee assesses cena.com.cn 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 cena.com.cn for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
WOT "cena.com.cn" GOOD.

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

SSL Information
WARNING! Certificate download error. Previous scan results are shown below.
Domain Unknown
Issuer Organization Unknown
Issuer Unknown
Algorithm Unknown
Valid form Unknown
Expiration Unknown
Signed No information
Additional Domains
Server Location
Hangzhou
Zhejiang
China
ASN Information

ASN ID: 37963
ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN

Last Update: 05/30/2019

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS37888 - AS38911'

as-block: AS37888 - AS38911
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2009-09-29T06:04:16Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS37936 - AS37970'

as-block: AS37936 - AS37970
descr: CNNIC ASN block
country: CN
remarks: These AS numbers are further assigned by CNNIC
remarks: to CNNIC members and end-users in China
admin-c: IPAS1-AP
tech-c: IPAS1-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNNIC-AP
last-modified: 2008-09-04T06:40:26Z
source: APNIC

role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
address: Haidian District, Beijing
country: CN
phone: +86-010-58813000
fax-no: +86-010-58813075
e-mail: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
nic-hdl: IPAS1-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-09-12T07:40:01Z
source: APNIC

% Information related to 'AS37963'

% Abuse contact for 'AS37963' is 'ipas@cnnic.cn'

aut-num: AS37963
as-name: CNNIC-ALIBABA-CN-NET-AP
descr: Hangzhou Alibaba Advertising Co.,Ltd.
descr: East Software Park, 99 Huaxing Rd.
descr: Hangzhou, China
country: CN
admin-c: ZM678-AP
tech-c: ZM877-AP
tech-c: ZM876-AP
tech-c: ZM875-AP
import: from AS4837
action pref=100;
accept ANY
import: from AS4134
action pref=100;
accept ANY
export: to AS4837
announce AS37963
export: to AS4134
announce AS37963
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-CNNIC-CN
last-modified: 2013-07-24T02:44:02Z
source: APNIC

irt: IRT-CNNIC-CN
address: Beijing, China
e-mail: ipas@cnnic.cn
abuse-mailbox: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
auth: # Filtered
remarks: Please note that CNNIC is not an ISP and is not
remarks: empowered to investigate complaints of network abuse.
remarks: Please contact the tech-c or admin-c of the network.
mnt-by: MAINT-CNNIC-AP
last-modified: 2017-11-01T08:57:39Z
source: APNIC

person: Shuo Yu
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: shuo.yus@alibaba-inc.com
e-mail: shuo.yus@aliyun-inc.com
nic-hdl: ZM678-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2011-11-02T03:36:02Z
source: APNIC

person: Guoxin Gao
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: anti-spam@list.alibaba-inc.com
nic-hdl: ZM875-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2014-07-30T01:56:01Z
source: APNIC

person: security trouble
e-mail: cloud-cc-sqcloud@list.alibaba-inc.com
address: 5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen’er Road
address: Hangzhou, Zhejiang, China
phone: +86-0571-85022600
country: CN
mnt-by: MAINT-CNNIC-AP
nic-hdl: ZM876-AP
last-modified: 2013-07-08T02:56:02Z
source: APNIC

person: Guowei Pan
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022088-30763
fax-no: +86-0571-85022600
e-mail: guowei.pangw@alibaba-inc.com
nic-hdl: ZM877-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-07-09T01:34:02Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

HTML Metatags
Title
电子信息产业网
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
电子信息产业网是电子信息产业权威门户网站,创建于1999年。目前设有半导体、智能终端、家用电器、LED、新能源、云计算、移动互联、产品评测等频道,提供最具公信力的产业资讯、企业动态、新技术发布,展会专题、信息搜索、专家访谈等内容,充分展现出电子行业新媒体的“宽度”(海量信息)、“速度”和互动度。
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
Images
Attribute ALT
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/symbol-1.png">...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20181229/1546066...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20180821/1534831...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20190128/1548681...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20190123/1548241...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20190122/1548147...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20190122/1548120...
Line 1, ...<img src="http://www.cena.com.cn/assets/images/title_jrrd.jpg">...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20190109/1547011...
Line 1, ...<img src="http://static.cena.com.cn/attach/image/20181020/1540035...

48 items are hidden.
Full results are available for registered users only.
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
The H1 tag is missing
Your H1 introduces the topic your page is all about, just as a title tells a reader what a book is all about. Add a header to the page by using a H1 tag and place it within the BODY of the page source.
H2
20 H2 tag(s).
The H2s are akin to book chapters, describing the main topics you’ll cover in sections of the article.
H3
16 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.
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
15.44 %
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 1, http://www.cena.com.cn/favicon.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
Not found
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 failed Loaded (/sitemap.xml)
Your site will benefit from having a sitemap.
WHOIS

Domain Name: cena.com.cn
ROID: 20021209s10011s00046487-cn
Domain Status: ok
Registrant ID: sfn7735359242277
Registrant: 北京赛迪经纶传媒投资有限公司
Registrant Contact Email: renlingyu@ccidmedia.com
Sponsoring Registrar: 北京中科三方网络技术有限公司
Name Server: ns1.sfn.cn
Name Server: ns2.sfn.cn
Registration Time: 1998-12-02 00:00:00
Expiration Time: 2021-12-02 00:00:00
DNSSEC: unsigned

DNS Records
HostA RecordTTL
cena.com.cn39.107.50.8600
HostMX RecordPriorityTTL
cena.com.cnmxbiz2.qq.com101800
cena.com.cnmxbiz1.qq.com51800
HostNS RecordTTL
cena.com.cnns1.sfn.cn86400
cena.com.cnns2.sfn.cn86400
HostTXT RecordTTL

ns1.sfn.cn
TTL: 86400
Email address: root.ns1.sfn.cn
Serial: 1908081705
Refresh: 600
Retry: 120
Expire: 604800
Minimum: 7200

Errors
Warnings

Last tested: 01/20/2018

Desktop
Desktop Speed
32%
Desktop Resource Breakdown
Total Resources82
Number of Hosts12
Static Resources68
JavaScript Resources16
CSS Resources3

Last tested: 07/20/2018

Mobile
Mobile Usability
60%
Mobile Speed
36%
Mobile Resource Breakdown
Total Resources87
Number of Hosts10
Static Resources77
JavaScript Resources13
CSS Resources5
www.cena.com
www.cena.net
www.cena.org
www.cena.info
www.cena.biz
www.cena.us
www.cena.mobi
www.ena.com.cn
www.cena.com.cn
www.xena.com.cn
www.cxena.com.cn
www.xcena.com.cn
www.dena.com.cn
www.cdena.com.cn
www.dcena.com.cn
www.fena.com.cn
www.cfena.com.cn
www.fcena.com.cn
www.vena.com.cn
www.cvena.com.cn
www.vcena.com.cn
www.cna.com.cn
www.cwna.com.cn
www.cewna.com.cn
www.cwena.com.cn
www.csna.com.cn
www.cesna.com.cn
www.csena.com.cn
www.cdna.com.cn
www.cedna.com.cn
www.crna.com.cn
www.cerna.com.cn
www.crena.com.cn
www.cea.com.cn
www.ceba.com.cn
www.cenba.com.cn
www.cebna.com.cn
www.ceha.com.cn
www.cenha.com.cn
www.cehna.com.cn
www.ceja.com.cn
www.cenja.com.cn
www.cejna.com.cn
www.cema.com.cn
www.cenma.com.cn
www.cemna.com.cn
www.cen.com.cn
www.cenq.com.cn
www.cenaq.com.cn
www.cenqa.com.cn
www.cenw.com.cn
www.cenaw.com.cn
www.cenwa.com.cn
www.cens.com.cn
www.cenas.com.cn
www.censa.com.cn
www.cenz.com.cn
www.cenaz.com.cn
www.cenza.com.cn