openjudge.cn Website Information
Daily Unique Visits: 745
Daily Page Views: 1,490
Income Per Day: $5
Estimated Value: $1,200
This website is located in United States and is using following IP address 168.235.95.213. See the complete list of popular websites hosted in United States.
openjudge.cn is registered under .CN top-level domain. Please check other sites in .CN zone.
Website openjudge.cn is using the following name servers:
- f1g1ns2.dnspod.net
- f1g1ns1.dnspod.net
and is probably hosted by RAMNODE - RamNode LLC, US. See the full list of other websites hosted by RAMNODE - RamNode LLC, US.
The highest website openjudge.cn position in Alexa rank database was 3232 and the lowest rank position was 995879. Current position of openjudge.cn in Alexa rank database is 962809.
Desktop speed score of openjudge.cn (87/100) is better than the results of 84.39% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of openjudge.cn (65/100) is better than the results of 13.11% of other sites and means that the page is not mobile-friendly.
Mobile speed score of openjudge.cn (74/100) is better than the results of 83.2% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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openjudge.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.
openjudge.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: 20091014s10001s63897942-cn
Domain Status: clientTransferProhibited
Registrant: 张勤健
Registrant Contact Email: zqj.pku@gmail.com
Sponsoring Registrar: 浙江贰贰网络有限公司
Name Server: f1g1ns1.dnspod.net
Name Server: f1g1ns2.dnspod.net
Registration Time: 2009-10-14 00:54:28
Expiration Time: 2024-10-14 00:54:28
DNSSEC: unsigned
openjudge.cn server information
Servers Location
openjudge.cn desktop page speed rank
Last tested: 2015-12-21
openjudge.cn Desktop Speed Test Quick Summary
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://static.openjudge.cn/scripts/jquery.form.js?1282920127.js
http://static.openjudge.cn/scripts/base-nc.js?1364953790.js
http://static.openjudge.cn/scripts/api.js?1443060267.js
Optimize CSS Delivery of the following:
http://static.openjudge.cn/styles/styles.css?1364953364.css
http://static.openjudge.cn/styles/site.css?1363251291.css
priority - 4Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 35.5KiB (80% reduction).
Compressing and resizing http://media.openjudge.cn/groups/196/logo_large.jpg could save 6.6KiB (82% reduction).
Compressing and resizing http://media.openjudge.cn/groups/9/logo_large.jpg could save 3.5KiB (64% reduction).
Compressing and resizing http://media.openjudge.cn/groups/165/logo_small.jpg could save 2.4KiB (79% reduction).
Losslessly compressing http://static.openjudge.cn/styles/images/vertical.gif could save 1.3KiB (36% reduction).
priority - 1Minify 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 4.8KiB (45% reduction).
Minifying http://static.openjudge.cn/scripts/base-nc.js?1364953790.js could save 1.3KiB (37% reduction).
priority - 0Enable 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 3.2KiB (59% reduction).
Compressing http://static.openjudge.cn/styles/global.css?1336473062.css could save 866B (50% reduction).
openjudge.cn Desktop Resource Breakdown
| Total Resources | 25 |
| Number of Hosts | 3 |
| Static Resources | 24 |
| JavaScript Resources | 4 |
| CSS Resources | 3 |
openjudge.cn mobile page speed rank
Last tested: 2019-10-29
openjudge.cn Mobile Speed Test Quick Summary
priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://static.openjudge.cn/scripts/jquery.form.js?1282920127.js
http://static.openjudge.cn/scripts/base-nc.js?1364953790.js
http://static.openjudge.cn/scripts/api.js?1443060267.js
Optimize CSS Delivery of the following:
http://static.openjudge.cn/styles/styles.css?1364953364.css
http://static.openjudge.cn/styles/site.css?1363251291.css
priority - 1Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 13.1KiB (48% reduction).
Losslessly compressing http://static.openjudge.cn/styles/images/vertical.gif could save 1.3KiB (36% reduction).
priority - 1Minify 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 4.8KiB (45% reduction).
Minifying http://static.openjudge.cn/scripts/base-nc.js?1364953790.js could save 1.3KiB (37% reduction).
priority - 0Enable 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 3.2KiB (59% reduction).
Compressing http://static.openjudge.cn/styles/global.css?1336473062.css could save 866B (50% reduction).
openjudge.cn Mobile Resource Breakdown
| Total Resources | 25 |
| Number of Hosts | 3 |
| Static Resources | 24 |
| JavaScript Resources | 4 |
| CSS Resources | 3 |
openjudge.cn mobile page usability
Last tested: 2019-10-29
openjudge.cn Mobile Usability Test Quick Summary
priority - 35Use 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.
开放的在线程序评测平台 renders only 4 pixels tall (11 CSS pixels).首页 and 3 others render only 5 pixels tall (14 CSS pixels).正在进行的比赛( and 2 others render only 5 pixels tall (14 CSS pixels).85 renders only 5 pixels tall (14 CSS pixels).(查看全部) and 1 others render only 4 pixels tall (12 CSS pixels).78D和78E先不用做 renders only 4 pixels tall (12 CSS pixels).开始时间: and 3 others render only 4 pixels tall (12 CSS pixels).2015-12-20 00:00:00 and 3 others render only 4 pixels tall (12 CSS pixels).参与者 and 5 others render only 4 pixels tall (11 CSS pixels).程序设计与算法（大学先修课）第十周作业（2015秋季） and 1 others render only 6 pixels tall (16 CSS pixels).208 and 5 others render only 8 pixels tall (22 CSS pixels).数据结构与算法MOOC and 3 others render only 5 pixels tall (14 CSS pixels).OpenJudge是开放的在线程序评测系统 and 1 others render only 5 pixels tall (14 CSS pixels).公告 renders only 4 pixels tall (12 CSS pixels).请同学修改自己的昵称(格式：网络141*-学号后三位-姓名) and 9 others render only 4 pixels tall (12 CSS pixels).我曾以为PJ P1很简单，然…Python语言课结束后选手 and 7 others render only 4 pixels tall (12 CSS pixels).©2002-2013 POJ…CP备12005590号-3 renders only 4 pixels tall (12 CSS pixels).English renders only 4 pixels tall (12 CSS pixels).priority - 11Size 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.
<a href="http://openjudge.cn/">首页</a> and 3 others are close to other tap targets.<a href="http://cxsjsxm….openjudge.cn/"></a> and 17 others are close to other tap targets.<a href="http://openjudge.cn/groups/">(查看全部)</a> is close to 1 other tap targets.<a href="javascript:void(0);">English</a> is close to 1 other tap targets.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.
openjudge.cn HTML validation
Errors
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html ..."
Start tag “a” seen but an element of the same type was already open.
"...udge.cn/"><a href="http://bigbang.openjudge.cn/"><img c..." Line: 2263 Column: 42 - 77
"...udge.cn/"><a href="http://tfls.openjudge.cn/"><img c..." Line: 2267 Column: 44 - 81
"...udge.cn/"><a href="http://skdckC.openjudge.cn/"><img c..." Line: 2271 Column: 45 - 83
"...udge.cn/"><a href="http://lslpjia.openjudge.cn/"><img c..." Line: 2276 Column: 43 - 79
"...udge.cn/"><a href="http://hz2hs.openjudge.cn/"><img c..." Line: 2280 Column: 45 - 83
"...udge.cn/"><a href="http://wfwznoi.openjudge.cn/"><img c..." Line: 2285 Column: 42 - 77
"...udge.cn/"><a href="http://ycyz.openjudge.cn/"><img c..." Line: 2290 Column: 41 - 75
"...udge.cn/"><a href="http://tic.openjudge.cn/"><img c..."
Stray end tag “a”.
"...25" /></a></a> ..." Line: 2263 Column: 209 - 212
"...25" /></a></a> ..." Line: 2267 Column: 215 - 218
"...25" /></a></a> ..." Line: 2271 Column: 219 - 222
"...25" /></a></a> ..." Line: 2276 Column: 221 - 224
"...25" /></a></a> ..." Line: 2280 Column: 214 - 217
"...25" /></a></a> ..." Line: 2285 Column: 211 - 214
"...25" /></a></a> ..." Line: 2290 Column: 208 - 211
"...25" /></a></a> ..."
Warnings
This document appears to be written in Simplified Chinese. Consider adding “lang="zh-hans"” (or variant) to the “html” start tag.
"...onal.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head..."
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openjudge.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.
openjudge.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.