programmer.com.cn Website Information
Daily Unique Visits: 4,009
Daily Page Views: 16,036
Income Per Day: $45
Estimated Value: $24,300
programmer.com.cn is registered under .CN top-level domain. Please check other sites in .CN zone.
No name server records were found.
and is probably hosted by China Unicom. See the full list of other websites hosted by China Unicom.
The highest website programmer.com.cn position in Alexa rank database was 115779 and the lowest rank position was 980461. Current position of programmer.com.cn in Alexa rank database is 313022.
Desktop speed score of programmer.com.cn (82/100) is better than the results of 74.03% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of programmer.com.cn (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed score of programmer.com.cn (64/100) is better than the results of 64.03% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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programmer.com.cn Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
programmer.com.cn whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
ROID: 20040209s10011s00469224-cn
Domain Status: ok
Registrant: 北京创新乐知网络技术有限公司
Registrant Contact Email: sa@csdn.net
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: f1g1ns1.dnspod.net
Name Server: f1g1ns2.dnspod.net
Registration Time: 2004-02-09 14:17:27
Expiration Time: 2022-02-09 14:17:27
DNSSEC: unsigned
programmer.com.cn server information
Servers Location
programmer.com.cn desktop page speed rank
Last tested: 2018-10-30
programmer.com.cn Desktop Speed Test Quick Summary
priority - 13Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 122.1KiB (59% reduction).
Compressing https://images.gitbook.cn/FvWpga-8uAcpj-Qwqejv-FirDMM- could save 32.3KiB (56% reduction).
Compressing https://images.gitbook.cn/WechatIMG66.jpg could save 20KiB (44% reduction).
Compressing https://open.weixin.qq.com/connect/qrcode/081nkRYeXFM-LwqA could save 17.1KiB (38% reduction).
Compressing and resizing https://images.gitbook.cn/check-mark.png could save 2.3KiB (86% reduction).
priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
priority - 3Leverage 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://open.weixin.qq.com/connect/qrcode/081nkRYeXFM-LwqA (expiration not specified)
https://res.wx.qq.com/connect/en_US/htmledition/js/jquery.min3696b4.js (10 minutes)
https://res.wx.qq.com/connect/en_US/htmledition/style/impowerApp3696b4.css (10 minutes)
https://res.wx.qq.com/connect/zh_CN/htmledition/js/wxLogin.js (10 minutes)
https://www.googletagmanager.com/gtag/js?id=UA-96766334-1 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 0Minify 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 296B (22% reduction).
priority - 0Minify 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 101B (15% reduction).
programmer.com.cn Desktop Resource Breakdown
| Total Resources | 30 |
| Number of Hosts | 10 |
| Static Resources | 15 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
programmer.com.cn mobile page speed rank
Last tested: 2018-10-30
programmer.com.cn Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://gitbook.cn/dist/js/ScrollMagic.min.js
Optimize CSS Delivery of the following:
https://gitbook.cn/css/gitbook/common/common.css
https://gitbook.cn/dist/site/gitchat/bundle2.css
https://gitbook.cn/dist/gitchat/css/columnListTemplate.css
priority - 13Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 122.3KiB (59% reduction).
Compressing https://images.gitbook.cn/FvWpga-8uAcpj-Qwqejv-FirDMM- could save 32.3KiB (56% reduction).
Compressing https://images.gitbook.cn/WechatIMG66.jpg could save 20KiB (44% reduction).
Compressing https://open.weixin.qq.com/connect/qrcode/07170OWszMth0lLC could save 17.4KiB (38% reduction).
Compressing and resizing https://images.gitbook.cn/check-mark.png could save 2.3KiB (86% reduction).
priority - 5Leverage 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://open.weixin.qq.com/connect/qrcode/07170OWszMth0lLC (expiration not specified)
https://res.wx.qq.com/connect/en_US/htmledition/js/jquery.min3696b4.js (10 minutes)
https://res.wx.qq.com/connect/en_US/htmledition/style/impowerApp3696b4.css (10 minutes)
https://res.wx.qq.com/connect/zh_CN/htmledition/js/wxLogin.js (10 minutes)
https://www.googletagmanager.com/gtag/js?id=UA-96766334-1 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 0Minify 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 296B (22% reduction).
priority - 0Minify 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 101B (15% reduction).
programmer.com.cn Mobile Resource Breakdown
| Total Resources | 31 |
| Number of Hosts | 10 |
| Static Resources | 16 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
programmer.com.cn mobile page usability
Last tested: 2018-10-30
programmer.com.cn HTML validation
Errors
Bad value “zh_CN” for attribute “lang” on element “html”: The language subtag “zh_cn” is not a valid language subtag.
"...type html> <html lang="zh_CN"> <head..."
The “frameset” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
"...> </head> <frameset rows="100%"> <fram..."
Element “noframes” not allowed as child of element “html” in this context. (Suppressing further errors from this subtree.)
"...frameset> <noframes> <body..."
The “noframes” element is obsolete. Use the “iframe” element and CSS instead, or use server-side includes.
"...frameset> <noframes> <body..."
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programmer.com.cn Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
programmer.com.cn TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.