CENA.COM.CN 电子信息产业网


cena.com.cn website information.

cena.com.cn website servers are located in China and are responding from following IP address 115.182.21.71. Check the full list of most visited websites located in China.

cena.com.cn domain name is registered by .CN top-level domain registry. See the other sites registred in .CN domain zone.

Following name servers are specified for cena.com.cn domain:

  • ns1.sfn.cn
  • ns2.sfn.cn

and probably website cena.com.cn is hosted by sfn.cn web hosting company. Check the complete list of other most popular websites hosted by sfn.cn hosting company.

According to Alexa traffic rank the highest website cena.com.cn position was 5570 (in the world). The lowest Alexa rank position was 882744. Now website cena.com.cn ranked in Alexa database as number 46355 (in the world).

Website cena.com.cn Desktop speed measurement score (32/100) is better than the results of 6.15% of other sites shows that the page desktop performance can be improved.

cena.com.cn Mobile usability score (60/100) is better than the results of 9.33% of other sites and shows that the page mobile usability is poor and can be improved.

Mobile speed measurement score of cena.com.cn (36/100) is better than the results of 11.02% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
May-22-2019 46,355-25,540
May-21-2019 20,8154,563
May-20-2019 25,378-8,825
May-19-2019 16,5535,602
May-18-2019 22,155-8,213
May-17-2019 13,94211,216
May-16-2019 25,158-4,922

Advertisement

cena.com.cn Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.


cena.com.cn whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


Domain Name: cena.com.cn
ROID: 20021209s10011s00046487-cn
Domain Status: ok
Registrant ID: c1265691655777
Registrant: 中国电子报社
Registrant Contact Email: renlingyu@163.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: 2020-12-02 00:00:00
DNSSEC: unsigned

cena.com.cn server information

Servers Location

cena.com.cn desktop page speed rank

Last tested: 2018-01-20


Desktop Speed Bad
32/100

cena.com.cn Desktop Speed Test Quick Summary


priority - 176 Optimize images

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

Optimize the following images to reduce their size by 1.7MiB (74% reduction).

Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20171227/…c6c93e7e1bad2d8605.jpg could save 230.3KiB (98% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171227/…c6c93e7e1bad2c7403.jpg could save 189.7KiB (73% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180104/…2608c4b11bb7d82123.jpg could save 185.3KiB (71% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171225/…c6c93e7e1baabbbc05.jpg could save 142KiB (70% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180119/…58c647bf1bcb97de05.jpg could save 124KiB (92% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171221/…c6c93e7e1ba530161d.jpg could save 115.4KiB (64% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180109/…2608c4b11bbe9c410c.jpg could save 60.8KiB (94% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbde2f10.jpg could save 60.7KiB (79% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171225/…c6c93e7e1baaea062b.jpg could save 53.9KiB (72% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171228/…c6c93e7e1bae5b8b0a.jpg could save 44.7KiB (69% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa42908.jpg could save 36.3KiB (79% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180119/…2608c4b11bcb8c9604.jpg could save 36.2KiB (75% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20170306/…c6c93e7e1a2708122d.jpg could save 35.1KiB (91% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180117/…2608c4b11bc8f82c03.jpg could save 35KiB (79% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpeg/site2/20180119…11d14171bcbca5505.jpeg could save 34KiB (82% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbdc8608.jpg could save 32.2KiB (65% reduction).
Compressing https://s0.2mdn.net/5128676/800x80_RWS-B-Series_CN.jpg could save 29.5KiB (63% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa39b06.jpg could save 26.6KiB (72% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbdbd903.jpg could save 20.5KiB (72% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20171228/…c6c93e7e1bae5d610c.jpg could save 20.1KiB (88% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180112/…2608c4b11bc26b600c.jpg could save 19.2KiB (89% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180112/…2608c4b11bc268dc04.jpg could save 18.5KiB (89% reduction).
Compressing http://cena.com.cn/1990.files/copyright.jpg could save 17.4KiB (53% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa2c403.jpg could save 17.1KiB (72% reduction).
Compressing http://cena.com.cn/new2017/images/epaper.jpg could save 16.4KiB (44% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbe0541b.jpg could save 12KiB (75% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20180108/…2608c4b11bbd164901.jpg could save 11.5KiB (82% reduction).
Compressing http://cena.com.cn/new2017/images/top_6.jpg could save 11.4KiB (70% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171025/…2608c4b11b5a9a3b0c.jpg could save 9.9KiB (48% reduction).
Compressing http://cena.com.cn/new2017/images/logo.jpg could save 9KiB (55% reduction).
Compressing and resizing http://cena.com.cn/attachement/jpg/site2/20170911/…2608c4b11b20893305.jpg could save 8.7KiB (81% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171026/…2608c4b11b5b839b11.jpg could save 8.3KiB (38% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171102/…2608c4b11b65254801.jpg could save 7.9KiB (28% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20171025/…2608c4b11b5a96320b.jpg could save 6.4KiB (29% reduction).
Compressing http://cena.com.cn/new2017/images/title_rmtj.jpg could save 4.9KiB (65% reduction).
Compressing http://cena.com.cn/1990.files/title_gzwm.jpg could save 4.7KiB (67% reduction).
Compressing http://cena.com.cn/1990.files/title_yqlj.jpg could save 4.5KiB (52% reduction).
Compressing http://cena.com.cn/1990.files/title_zcsp.jpg could save 4.3KiB (61% reduction).
Compressing http://cena.com.cn/1990.files/title_tbch.jpg could save 3.5KiB (61% reduction).
Compressing http://cena.com.cn/new2017/images/title_bzph.jpg could save 3.2KiB (59% reduction).
Compressing http://cena.com.cn/1990.files/title_hyzt.jpg could save 3KiB (54% reduction).
Compressing http://cena.com.cn/new2017/images/jzgd.jpg could save 2.6KiB (57% reduction).
Compressing http://cena.com.cn/new2017/images/title_jrrd.jpg could save 2.3KiB (50% reduction).
Compressing http://cena.com.cn/new2017/images/btn-msearch.jpg could save 1.3KiB (70% reduction).
Compressing http://cena.com.cn/new2017/images/time.jpg could save 942B (69% reduction).
Compressing http://cena.com.cn/new2017/images/focus_btn.png could save 935B (61% reduction).
Compressing http://cena.com.cn/attachement/jpg/site2/20180117/…2608c4b11bc8fa520c.jpg could save 514B (13% reduction).
Compressing http://eiv.baidu.com/hmt/icon/21.gif could save 300B (27% reduction).

priority - 30 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:

http://cena.com.cn/1990.files/copyright.jpg (expiration not specified)
http://cena.com.cn/1990.files/title_gzwm.jpg (expiration not specified)
http://cena.com.cn/1990.files/title_hyzt.jpg (expiration not specified)
http://cena.com.cn/1990.files/title_tbch.jpg (expiration not specified)
http://cena.com.cn/1990.files/title_yqlj.jpg (expiration not specified)
http://cena.com.cn/1990.files/title_zcsp.jpg (expiration not specified)
http://cena.com.cn/attachement/gif/site2/20171231/…c6c93e7e1bb32e5101.gif (expiration not specified)
http://cena.com.cn/attachement/jpeg/site2/20180119…11d14171bcbca5505.jpeg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20170306/…c6c93e7e1a2708122d.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20170911/…2608c4b11b20893305.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171025/…2608c4b11b5a96320b.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171025/…2608c4b11b5a9a3b0c.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171026/…2608c4b11b5b839b11.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171102/…2608c4b11b65254801.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171221/…c6c93e7e1ba530161d.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171225/…c6c93e7e1baabbbc05.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171225/…c6c93e7e1baaea062b.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171227/…c6c93e7e1bad2c7403.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171227/…c6c93e7e1bad2d8605.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171228/…c6c93e7e1bae5b8b0a.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20171228/…c6c93e7e1bae5d610c.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180104/…2608c4b11bb7d82123.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180108/…2608c4b11bbd164901.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180109/…2608c4b11bbe9c410c.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180112/…2608c4b11bc268dc04.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180112/…2608c4b11bc26b600c.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180117/…2608c4b11bc8f82c03.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180117/…2608c4b11bc8fa280b.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180117/…2608c4b11bc8fa520c.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa2c403.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa39b06.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180118/…2608c4b11bcaa42908.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…58c647bf1bcb97de05.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbdbd903.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbdc8608.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbde2f10.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…211d13a61bcbe0541b.jpg (expiration not specified)
http://cena.com.cn/attachement/jpg/site2/20180119/…2608c4b11bcb8c9604.jpg (expiration not specified)
http://cena.com.cn/cena/html/images/symbol-1.png (expiration not specified)
http://cena.com.cn/cena/html/js/index.js (expiration not specified)
http://cena.com.cn/new2017/css/lrtk.css (expiration not specified)
http://cena.com.cn/new2017/css/reset.css (expiration not specified)
http://cena.com.cn/new2017/css/style.css (expiration not specified)
http://cena.com.cn/new2017/images/btn-msearch.jpg (expiration not specified)
http://cena.com.cn/new2017/images/epaper.jpg (expiration not specified)
http://cena.com.cn/new2017/images/focus_btn.png (expiration not specified)
http://cena.com.cn/new2017/images/img_bg.jpg (expiration not specified)
http://cena.com.cn/new2017/images/jzgd.jpg (expiration not specified)
http://cena.com.cn/new2017/images/latestnews-title.png (expiration not specified)
http://cena.com.cn/new2017/images/logo.jpg (expiration not specified)
http://cena.com.cn/new2017/images/msearch_bg.png (expiration not specified)
http://cena.com.cn/new2017/images/time.jpg (expiration not specified)
http://cena.com.cn/new2017/images/title_bzph.jpg (expiration not specified)
http://cena.com.cn/new2017/images/title_jrrd.jpg (expiration not specified)
http://cena.com.cn/new2017/images/title_rmtj.jpg (expiration not specified)
http://cena.com.cn/new2017/images/top_6.jpg (expiration not specified)
http://cena.com.cn/new2017/js/jquery-1.8.3.min.js (expiration not specified)
http://cena.com.cn/new2017/js/koala.min.1.5.js (expiration not specified)
http://www.cena.com.cn/new2017/js/terminator2.2.min.js (expiration not specified)
http://pagead2.googlesyndication.com/pagead/js/lidar.js (60 minutes)
https://www.googletagservices.com/dcm/dcmads.js (60 minutes)

priority - 13 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 127.1KiB (63% reduction).

Compressing http://cena.com.cn/new2017/js/jquery-1.8.3.min.js could save 58.8KiB (64% reduction).
Compressing http://cena.com.cn/ could save 26.5KiB (72% reduction).
Compressing http://cena.com.cn/new2017/js/koala.min.1.5.js could save 18.5KiB (52% reduction).
Compressing http://www.cena.com.cn/new2017/js/terminator2.2.min.js could save 10.5KiB (60% reduction).
Compressing http://cena.com.cn/new2017/css/style.css could save 6.1KiB (71% reduction).
Compressing http://cena.com.cn/cena/html/js/index.js could save 2.3KiB (63% reduction).
Compressing http://cena.com.cn/new2017/css/reset.css could save 1.9KiB (60% reduction).
Compressing http://cena.com.cn/new2017/css/lrtk.css could save 1.6KiB (63% reduction).
Compressing http://cena.com.cn/node_615.htm could save 480B (43% reduction).
Compressing http://219.141.209.50/phpstat/count/abceffgh/abceffg.js could save 474B (50% reduction).

priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking script resources and 3 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:

http://cena.com.cn/new2017/js/jquery-1.8.3.min.js
http://cena.com.cn/new2017/js/koala.min.1.5.js
http://cena.com.cn/cena/html/js/index.js

Optimize CSS Delivery of the following:

http://cena.com.cn/new2017/css/reset.css
http://cena.com.cn/new2017/css/style.css
http://cena.com.cn/new2017/css/lrtk.css

priority - 1 Minify HTML

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 6.2KiB (17% reduction).

Minifying http://cena.com.cn/ could save 6.1KiB (17% reduction).
Minifying http://cena.com.cn/node_615.htm could save 116B (11% reduction).

priority - 0 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 4.1KiB (30% reduction).

Minifying http://cena.com.cn/new2017/css/reset.css could save 2.4KiB (75% reduction).
Minifying http://cena.com.cn/new2017/css/style.css could save 1.5KiB (18% reduction).
Minifying http://cena.com.cn/new2017/css/lrtk.css could save 266B (11% reduction).

priority - 0 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 1.4KiB (30% reduction).

Minifying http://cena.com.cn/cena/html/js/index.js could save 1.2KiB (33% reduction).
Minifying http://219.141.209.50/phpstat/count/abceffgh/abceffg.js could save 198B (21% reduction).

cena.com.cn Desktop Resources

Total Resources82
Number of Hosts12
Static Resources68
JavaScript Resources16
CSS Resources3

cena.com.cn Desktop Resource Breakdown

cena.com.cn mobile page speed rank

Last tested: 2018-07-20


Mobile Speed Bad
36/100

cena.com.cn Mobile Speed Test Quick Summary


priority - 72 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 8 blocking script resources and 4 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:

http://www.cena.com.cn/assets/js/jquery-1.8.3.min.js?ver=20180627
http://www.cena.com.cn/assets/js/koala.min.1.5.js
http://www.cena.com.cn/assets/js/index.js
http://www.cena.com.cn/assets/js/functions.js
http://www.cena.com.cn/assets/js/layer/layer.js
https://www.googletagservices.com/dcm/dcmads.js
https://www.googletagservices.com/dcm/impl_v42.js
https://ad.doubleclick.net/ddm/adj/N4481.717086.CE…6Jhj!hJ;sttr=1;prcl=s?

Optimize CSS Delivery of the following:

http://www.cena.com.cn/assets/css/reset.css
http://www.cena.com.cn/assets/css/style.css?ver=201806151032
http://www.cena.com.cn/assets/css/lrtk.css
http://www.cena.com.cn/assets/js/layer/theme/default/layer.css?v=3.1.1

priority - 68 Optimize images

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

Optimize the following images to reduce their size by 666.3KiB (58% reduction).

Compressing http://static.cena.com.cn/data/attachement/jpg/sit…2df7379c158dbf9507.jpg could save 135.2KiB (77% reduction).
Compressing http://static.cena.com.cn/attach/image/20180613/1528886717709283.jpg could save 65.7KiB (76% reduction).
Compressing http://static.cena.com.cn/data/attachement/jpg/sit…c6c93e7e1c6d8dbb1c.jpg could save 63.2KiB (75% reduction).
Compressing http://static.cena.com.cn/attach/image/20180615/1529031326888689.jpg could save 50KiB (79% reduction).
Compressing http://static.cena.com.cn/attach/image/20180615/1529033816526184.jpg could save 44.5KiB (70% reduction).
Compressing http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c491d1206.jpg could save 44.3KiB (74% reduction).
Compressing https://s0.2mdn.net/3047030/800x80_TPLC_CN.jpg could save 41.3KiB (67% reduction).
Compressing http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c491d590a.jpg could save 39.2KiB (78% reduction).
Compressing http://static.cena.com.cn/data/attachement/jpg/sit…c6c93e7e1c97d38f19.jpg could save 36.7KiB (75% reduction).
Compressing http://static.cena.com.cn/attach/image/20180615/1529031122175518.jpg could save 25.3KiB (56% reduction).
Compressing http://www.cena.com.cn/assets/images/copyright.jpg could save 17.4KiB (53% reduction).
Compressing http://www.cena.com.cn/assets/images/epaper.jpg could save 16.4KiB (44% reduction).
Compressing http://www.cena.com.cn/assets/images/top_6.jpg could save 11.4KiB (70% reduction).
Compressing http://www.cena.com.cn/assets/images/logo/5b0b698d65a9e.jpg could save 9KiB (55% reduction).
Compressing http://static.cena.com.cn/attach/image/20180719/153196316858576997.jpg could save 8.7KiB (12% reduction).
Compressing http://static.cena.com.cn/attach/image/20180719/153196365926342596.jpg could save 8.3KiB (12% reduction).
Compressing http://static.cena.com.cn/attach/image/20180720/153204035695605535.jpg could save 6.5KiB (13% reduction).
Compressing http://static.cena.com.cn/attach/image/20180624/152984489387224778.jpg could save 5.8KiB (19% reduction).
Compressing http://www.cena.com.cn/assets/images/title_rmtj.jpg could save 4.9KiB (65% reduction).
Compressing http://www.cena.com.cn/assets/images/title_gzwm.jpg could save 4.7KiB (67% reduction).
Compressing http://www.cena.com.cn/assets/images/title_yqlj.jpg could save 4.5KiB (52% reduction).
Compressing http://www.cena.com.cn/assets/images/title_zcsp.jpg could save 4.3KiB (61% reduction).
Compressing http://www.cena.com.cn/assets/images/title_tbch.jpg could save 3.5KiB (61% reduction).
Compressing http://www.cena.com.cn/assets/images/title_bzph.jpg could save 3.2KiB (59% reduction).
Compressing http://www.cena.com.cn/assets/images/title_hyzt.jpg could save 3KiB (54% reduction).
Compressing http://www.cena.com.cn/assets/images/jzgd.jpg could save 2.6KiB (57% reduction).
Compressing http://www.cena.com.cn/assets/images/title_jrrd.jpg could save 2.3KiB (50% reduction).
Compressing http://www.cena.com.cn/assets/images/btn-msearch.jpg could save 1.3KiB (70% reduction).
Compressing http://www.cena.com.cn/assets/images/antzonebg.jpg could save 1.1KiB (72% reduction).
Compressing http://www.cena.com.cn/assets/images/time.jpg could save 942B (69% reduction).
Compressing http://www.cena.com.cn/assets/images/focus_btn.png could save 935B (61% reduction).

priority - 51 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:

http://static.cena.com.cn/attach/image/20180613/1528886717709283.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180613/1528905361513807.gif (expiration not specified)
http://static.cena.com.cn/attach/image/20180613/1528905549193924.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180615/1529031122175518.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180615/1529031326888689.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180615/1529033816526184.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180624/152984489387224778.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180710/153119542363343619.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180710/153119562660038118.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180710/153119596573859589.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180710/153119618466972354.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180718/153192778594731103.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153193020713886867.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153196198355495815.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153196316858576997.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153196365926342596.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153198906017133122.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153198972732983710.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199063247125257.png (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199099830303481.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199123172238020.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199137929850301.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199496096931529.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180719/153199531630169387.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153204012561294326.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153204035695605535.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153204085227473297.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153204098029274510.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153204114894334824.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153205119637102972.jpg (expiration not specified)
http://static.cena.com.cn/attach/image/20180720/153207373956489846.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2df7379c158dbf9507.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11bda57cd19.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c491d1206.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c491d590a.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…c6c93e7e1c6d8dbb1c.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c76183002.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…2608c4b11c7618c605.jpg (expiration not specified)
http://static.cena.com.cn/data/attachement/jpg/sit…c6c93e7e1c97d38f19.jpg (expiration not specified)
https://www.googletagservices.com/dcm/dcmads.js (60 minutes)
http://www.cena.com.cn/assets/css/lrtk.css (12 hours)
http://www.cena.com.cn/assets/css/page.css (12 hours)
http://www.cena.com.cn/assets/css/reset.css (12 hours)
http://www.cena.com.cn/assets/css/style.css?ver=201806151032 (12 hours)
http://www.cena.com.cn/assets/js/functions.js (12 hours)
http://www.cena.com.cn/assets/js/index.js (12 hours)
http://www.cena.com.cn/assets/js/jquery-1.8.3.min.js?ver=20180627 (12 hours)
http://www.cena.com.cn/assets/js/koala.min.1.5.js (12 hours)
http://www.cena.com.cn/assets/js/layer/layer.js (12 hours)
http://www.cena.com.cn/assets/js/layer/theme/default/layer.css?v=3.1.1 (12 hours)
http://www.cena.com.cn/assets/js/terminator2.2.min.js (12 hours)
http://www.cena.com.cn/assets/images/antzonebg.jpg (24 hours)
http://www.cena.com.cn/assets/images/btn-msearch.jpg (24 hours)
http://www.cena.com.cn/assets/images/copyright.jpg (24 hours)
http://www.cena.com.cn/assets/images/epaper.jpg (24 hours)
http://www.cena.com.cn/assets/images/focus_btn.png (24 hours)
http://www.cena.com.cn/assets/images/img_bg.jpg (24 hours)
http://www.cena.com.cn/assets/images/jzgd.jpg (24 hours)
http://www.cena.com.cn/assets/images/latestnews-title.png (24 hours)
http://www.cena.com.cn/assets/images/logo/5b0b698d65a9e.jpg (24 hours)
http://www.cena.com.cn/assets/images/msearch_bg.png (24 hours)
http://www.cena.com.cn/assets/images/symbol-1.png (24 hours)
http://www.cena.com.cn/assets/images/time.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_bzph.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_gzwm.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_hyzt.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_jrrd.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_rmtj.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_tbch.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_yqlj.jpg (24 hours)
http://www.cena.com.cn/assets/images/title_zcsp.jpg (24 hours)
http://www.cena.com.cn/assets/images/top_6.jpg (24 hours)

priority - 0 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 1.5KiB (29% reduction).

Minifying http://www.cena.com.cn/assets/css/reset.css could save 794B (62% reduction) after compression.
Minifying http://www.cena.com.cn/assets/css/style.css?ver=201806151032 could save 481B (21% reduction) after compression.
Minifying http://www.cena.com.cn/assets/css/lrtk.css could save 125B (14% reduction) after compression.
Minifying http://www.cena.com.cn/assets/css/page.css could save 101B (17% reduction) after compression.

priority - 0 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 440B (23% reduction).

Minifying http://www.cena.com.cn/assets/js/index.js could save 321B (32% reduction) after compression.
Minifying http://www.cena.com.cn/assets/js/functions.js could save 119B (14% reduction) after compression.

cena.com.cn Mobile Resources

Total Resources87
Number of Hosts10
Static Resources77
JavaScript Resources13
CSS Resources5

cena.com.cn Mobile Resource Breakdown

cena.com.cn mobile page usability

Last tested: 2018-07-20


Mobile Usability Bad
60/100

cena.com.cn Mobile Usability Test Quick Summary


priority - 40 Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

工业和信息化部主管 中国电子报社主办 renders only 5 pixels tall (12 CSS pixels).

数字报纸 and 1 others render only 5 pixels tall (14 CSS pixels).

产业要闻 and 10 others render only 7 pixels tall (18 CSS pixels).

赛普拉斯的RSDB技术被应用于内置式车载接收器中,... and 1 others render only 5 pixels tall (14 CSS pixels).

智能网联汽车呼唤中国方案 renders only 8 pixels tall (20 CSS pixels).

【国际锐评】美国在华企业获得高额利润的秘密 and 3 others render only 7 pixels tall (18 CSS pixels).

工业和信息化部关于印发《工业互联网平台建设及推广指南》和《工 and 19 others render only 7 pixels tall (18 CSS pixels).

云电源是描述用于传输、存储和…户仍可访问云。每台服 ... and 28 others render only 5 pixels tall (12 CSS pixels).

昨天 16:02 and 19 others render only 5 pixels tall (12 CSS pixels).

第六届中国电子信息博览会开幕式暨数字经济前沿论坛 and 8 others render only 6 pixels tall (16 CSS pixels).

浙江美大夏鼎:小心呵护集成灶行业,不 ... and 5 others render only 5 pixels tall (14 CSS pixels).
中国电子信息产业发展研究院 and 3 others render only 5 pixels tall (14 CSS pixels).
关于我们 and 1 others render only 5 pixels tall (14 CSS pixels).
| renders only 5 pixels tall (14 CSS pixels).

priority - 18 Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 1,179 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <li>收藏</li> falls outside the viewport.
The element <a href="http://epaper.cena.com.cn">数字报纸</a> falls outside the viewport.
The element <img src="https://s0.2md…80_TPLC_CN.jpg"> falls outside the viewport.
The element <a href="http://www.cen…n/special.html">特别策划</a> falls outside the viewport.
The element <a href="http://www.cen…eos/index.html">视频</a> falls outside the viewport.
The element <input id="keyword" type="text" name="keyword" class="text-msearch"> falls outside the viewport.
The element <input id="search_art" type="submit" class="btn-msearch"> falls outside the viewport.
The element <img src="http://static.…6717709283.jpg"> falls outside the viewport.
The element <img src="http://static.…1326888689.jpg"> falls outside the viewport.
The element <img src="http://www.cen…title_jrrd.jpg"> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <a href="http://www.cen…720/94736.html">【国际锐评】美国在华企业获得高额利润的秘密</a> falls outside the viewport.
The element <a href="http://www.cen…720/94737.html">价格战是扬汤止沸 高端化才是彩电下一个出口</a> falls outside the viewport.
The element <a href="http://www.cen…720/94738.html">三大新型显示技术争锋 谁才是上半年王者?</a> falls outside the viewport.
The element <a href="http://www.cen…719/94723.html">集成电路:行业景气度总体保持上升态势</a> falls outside the viewport.
The element <img src="http://static.…3816526184.jpg"> falls outside the viewport.
The element <img src="http://www.cen…title_gzwm.jpg"> falls outside the viewport.
The element <img src="http://www.cen…ges/epaper.jpg"> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <img src="http://www.cen…title_hyzt.jpg"> falls outside the viewport.
The element <a href="http://topic.c…/node_3400.htm">2018制造业“双创”高峰论坛</a> falls outside the viewport.
The element <p>6月22日,2018制造业“…技有限公司和中国船舶工...</p> falls outside the viewport.
The element <a href="http://topic.c…/node_3380.htm">2018世界VR产业大会新闻发布会</a> falls outside the viewport.
The element <p>5月21日,记者从在北京人民…人民政府、虚拟现实产业...</p> falls outside the viewport.
The element <a href="http://topic.c…/node_3340.htm">数字经济前沿论坛-CITE2018第六届中国电...</a> falls outside the viewport.
The element <p>为贯彻落实党的十九大精神,充…日-11日在深圳市共 ...</p> falls outside the viewport.
The element <a href="http://topic.c…/node_3343.htm">中国超高清视频(4K)产业发展大会</a> falls outside the viewport.
The element <p>3月29日,中国超高清视频(…局、广州市人民政府、中...</p> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <img src="http://www.cen…title_tbch.jpg"> falls outside the viewport.
The element <a href="http://topic.c…/node_3261.htm">工业互联网平台建设与推广专栏</a> falls outside the viewport.
The element <p>当前,全球工业互联网正处在格…竞争的新赛道、产业布局...</p> falls outside the viewport.
The element <a href="http://topic.c…/node_3320.htm">聚焦2018年全国两会</a> falls outside the viewport.
The element <p>3月5日,第十三届全国人民代…地流量和全国流量这种计...</p> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <img src="http://www.cen…title_bzph.jpg"> falls outside the viewport.
The element <a href="http://www.cen…714/94630.html">浙江美大夏鼎:小心呵护集成灶行业,不 ...</a> falls outside the viewport.
The element <a href="http://www.cen…718/94686.html">华为麒麟980采用台积电7nm工艺, ...</a> falls outside the viewport.
The element <a href="http://www.cen…717/94681.html">MLCC涨价潮仍将延续,产业链各方如 ...</a> falls outside the viewport.
The element <a href="http://www.cen…714/94629.html">站在巨人肩膀上 帅康集成灶产 ...</a> falls outside the viewport.
The element <a href="http://www.cen…718/94692.html">全能体验 Nokia X5 诺基亚X ...</a> falls outside the viewport.
The element <a href="http://www.cen…718/94691.html">第六届(2018)中国FPGA产业发 ...</a> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <img src="http://www.cen…title_zcsp.jpg"> falls outside the viewport.
The element <a href="http://shangzh…appinstalled=0">第六届中国电子信息博览会开幕式暨数字经济前沿论坛</a> falls outside the viewport.
The element <p>本次论坛主题是“智领新时代…驱动战略、实施“中国制...</p> falls outside the viewport.
The element <a href="http://www.cen…112/94126.html">必看 | 2017年成就平板显示产业的十大事件</a> falls outside the viewport.
The element <p>2017年1月22日,由广东…台及印刷显示产业园为基...</p> falls outside the viewport.
The element <a href="http://www.cen…925/56880.html">4G高端访谈:Red Bend中国技术与新业务总监殷高生</a> falls outside the viewport.
The element <p>其实我们Red Bend是一…行升级,传统方式进行整...</p> falls outside the viewport.
The element <div class="blk_10"> falls outside the viewport.
The element <img src="http://www.cen…title_yqlj.jpg"> falls outside the viewport.
The element <p>工业和信息化部    中国电…通信产业网    赛迪网</p> falls outside the viewport.
The element <div class="line_10"> falls outside the viewport.
The element <div class="about">关于我们 | 联系我们</div> falls outside the viewport.
The element <img src="http://www.cen…/copyright.jpg"> falls outside the viewport.

priority - 10 Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

Configure a viewport for this page.

priority - 3 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 <a href="javascript:;void(0);">收藏</a> and 1 others are close to other tap targets.

The tap target <div id="DfaVisibilityI…fier_225000303" class="GoogleActiveViewClass"></div> and 2 others are close to other tap targets.

The tap target <a href="http://www.cen…/ha/index.html">家用电器</a> and 7 others are close to other tap targets.

The tap target <a href="http://www.cen…719/94714.html">艾迈斯半导体CCS8xx 系列VOC 传感器提升终...</a> and 1 others are close to other tap targets.

The tap target <input id="keyword" type="text" name="keyword" class="text-msearch"> is close to 2 other tap targets.

The tap target <input id="search_art" type="submit" class="btn-msearch"> is close to 3 other tap targets.
The tap target <a href="http://topic.c…/node_3400.htm">2018制造业“双创”高峰论坛</a> and 1 others are close to other tap targets.

The tap target <a href="http://www.cen…714/94630.html">浙江美大夏鼎:小心呵护集成灶行业,不 ...</a> and 5 others are close to other tap targets.
The tap target <a href="http://bdt.ccidnet.com/">赛迪网</a> is close to 1 other tap targets.

cena.com.cn Mobile Resources

Total Resources87
Number of Hosts10
Static Resources77
JavaScript Resources13
CSS Resources5

cena.com.cn Mobile Resource Breakdown

cena.com.cn similar domains

Similar domains:
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

cena.com.cn Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


cena.com.cn TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.