w3school.com.cn Website Information
Daily Unique Visits: 141,694
Daily Page Views: 850,164
Income Per Day: $1,700
Estimated Value: $1,224,000
This website is located in China and is using following IP address 120.55.40.41. See the complete list of popular websites hosted in China.
w3school.com.cn is registered under .CN top-level domain. Please check other sites in .CN zone.
Website w3school.com.cn is using the following name servers:
- dns8.hichina.com
- dns7.hichina.com
and is probably hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN. See the full list of other websites hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN.
The highest website w3school.com.cn position in Alexa rank database was 9750 and the lowest rank position was 10600. Current position of w3school.com.cn in Alexa rank database is 10122.
Desktop speed score of w3school.com.cn (88/100) is better than the results of 85.98% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of w3school.com.cn (89/100) is better than the results of 31.01% of other sites and means that the page is mobile-friendly.
Mobile speed score of w3school.com.cn (99/100) is better than the results of 96.95% of other sites and shows that the landing page performance on mobile devices is excellent.
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w3school.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.
w3school.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: 20060720s10011s66954821-cn
Domain Status: clientTransferProhibited
Registrant: 杨伟伟
Registrant Contact Email: rgb@qq.com
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: dns7.hichina.com
Name Server: dns8.hichina.com
Registration Time: 2006-07-20 11:05:27
Expiration Time: 2029-07-20 11:05:27
DNSSEC: unsigned
w3school.com.cn server information
Servers Location
w3school.com.cn desktop page speed rank
Last tested: 2018-09-12
w3school.com.cn Desktop Speed Test Quick Summary
priority - 8Leverage 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://www.w3school.com.cn/ui2017/alert.png (expiration not specified)
http://www.w3school.com.cn/ui2017/bg.png (expiration not specified)
http://www.w3school.com.cn/ui2017/footer.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon10.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon2.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon3.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon4.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon5.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon6.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon7.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon8.png (expiration not specified)
http://www.w3school.com.cn/ui2017/icon9.png (expiration not specified)
http://www.w3school.com.cn/ui2017/wrapper.png (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=UA-878633-1 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 2Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 23.3KiB (22% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon10.png could save 4.9KiB (32% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon9.png could save 3.3KiB (27% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon5.png could save 695B (26% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon7.png could save 631B (24% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon2.png could save 436B (19% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon4.png could save 416B (17% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon3.png could save 358B (19% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon6.png could save 232B (11% reduction).
Compressing http://www.w3school.com.cn/ui2017/icon8.png could save 149B (34% reduction).
Compressing http://www.w3school.com.cn/ui2017/alert.png could save 133B (29% reduction).
Compressing http://www.w3school.com.cn/ui2017/footer.png could save 117B (59% reduction).
priority - 2Eliminate 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 - 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 693B (15% reduction).
w3school.com.cn Desktop Resource Breakdown
| Total Resources | 20 |
| Number of Hosts | 5 |
| Static Resources | 16 |
| JavaScript Resources | 2 |
| CSS Resources | 1 |
w3school.com.cn mobile page speed rank
Last tested: 2018-02-08
w3school.com.cn Mobile Speed Test Quick Summary
priority - 1Leverage 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:
w3school.com.cn Mobile Resource Breakdown
| Total Resources | 2 |
| Number of Hosts | 1 |
| Static Resources | 1 |
w3school.com.cn mobile page usability
Last tested: 2018-02-08
w3school.com.cn Mobile Usability Test Quick Summary
priority - 10Configure 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.
w3school.com.cn HTML validation
Errors
Legacy encoding “gbk” used. Documents must use UTF-8.
"......"
The only allowed value for the “charset” attribute for the “meta” element is “utf-8”.
"...5.css" /> <meta charset="gbk" /> <meta..."
Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.
"...="gbk" /> <meta http-equiv="Content-Language" content="zh-cn" /> <meta..."
Bad value “imagetoolbar” for attribute “http-equiv” on element “meta”.
"..."true" /> <meta http-equiv="imagetoolbar" content="false" /> <lin..."
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w3school.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.
w3school.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.