PKU.EDU.CN 北京大学

pku.edu.cn Website Information

Daily Unique Visits: 1,031,033

Daily Page Views: 8,248,264

Income Per Day: $8,248

Estimated Value: $8,907,840

This website is located in China and is using following IP address 162.105.129.103. See the complete list of popular websites hosted in China.

pku.edu.cn is registered under .CN top-level domain. Please check other sites in .CN zone.

Website pku.edu.cn is using the following name servers:

  • DNS2.pku.edu.cn
  • DNS.pku.edu.cn
  • ns.pku.edu.cn

and is probably hosted by CNGI-BJ-IX3-AS-AP CERNET2 IX at Peking University, CN. See the full list of other websites hosted by CNGI-BJ-IX3-AS-AP CERNET2 IX at Peking University, CN.

The highest website pku.edu.cn position in Alexa rank database was 1302 and the lowest rank position was 1484. Current position of pku.edu.cn in Alexa rank database is 1478.

Desktop speed score of pku.edu.cn (6/100) is better than the results of 0.8% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of pku.edu.cn (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of pku.edu.cn (25/100) is better than the results of 6.8% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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pku.edu.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.


pku.edu.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.


Out of this registry.

pku.edu.cn server information

Servers Location

pku.edu.cn desktop page speed rank

Last tested: 2018-02-08


Desktop Speed Bad
6/100

pku.edu.cn Desktop Speed Test Quick Summary


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priority - 49Leverage browser caching

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priority - 40Enable compression

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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 6Minify JavaScript

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priority - 2Minify CSS

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priority - 1Minify HTML

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pku.edu.cn Desktop Resource Breakdown

Total Resources116
Number of Hosts4
Static Resources99
JavaScript Resources19
CSS Resources8

pku.edu.cn mobile page speed rank

Last tested: 2018-01-23


Mobile Speed Bad
25/100

pku.edu.cn Mobile Speed Test Quick Summary


priority - 138Optimize images

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priority - 64Leverage 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://pku.edu.cn/css/font-awesome.min.css (expiration not specified)
http://pku.edu.cn/css/indexi.css (expiration not specified)
http://pku.edu.cn/css/pku.css (expiration not specified)
http://pku.edu.cn/files/basei.css (expiration not specified)
http://pku.edu.cn/files/comm.js (expiration not specified)
http://pku.edu.cn/files/index.css (expiration not specified)
http://pku.edu.cn/files/jq.js (expiration not specified)
http://pku.edu.cn/files/jquery.easing-1.3.js (expiration not specified)
http://pku.edu.cn/files/jquery.iosslider.js (expiration not specified)
http://pku.edu.cn/files/mmenu.css (expiration not specified)
http://pku.edu.cn/files/thuicon.css (expiration not specified)
http://pku.edu.cn/files/visualMacth.js (expiration not specified)
http://pku.edu.cn/images/a_bg.jpg (expiration not specified)
http://pku.edu.cn/images/content/2018-01/20180109144702321057.jpg (expiration not specified)
http://pku.edu.cn/images/f_bg.jpg (expiration not specified)
http://pku.edu.cn/images/fw_bg4.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img1.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img2.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img3.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img4.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img5.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img6.jpg (expiration not specified)
http://pku.edu.cn/images/fw_img9.jpg (expiration not specified)
http://pku.edu.cn/images/gk_icon.png (expiration not specified)
http://pku.edu.cn/images/jz_icon.png (expiration not specified)
http://pku.edu.cn/images/line.jpg (expiration not specified)
http://pku.edu.cn/images/lj_icon.png (expiration not specified)
http://pku.edu.cn/images/mh_icon.png (expiration not specified)
http://pku.edu.cn/images/rc_icon.png (expiration not specified)
http://pku.edu.cn/images/rw_icon.jpg (expiration not specified)
http://pku.edu.cn/images/share01.png (expiration not specified)
http://pku.edu.cn/images/share02.png (expiration not specified)
http://pku.edu.cn/images/share03.png (expiration not specified)
http://pku.edu.cn/images/share04.png (expiration not specified)
http://pku.edu.cn/images/share05.png (expiration not specified)
http://pku.edu.cn/images/share06.png (expiration not specified)
http://pku.edu.cn/images/share07.png (expiration not specified)
http://pku.edu.cn/images/share08.png (expiration not specified)
http://pku.edu.cn/images/xf_icon.png (expiration not specified)
http://pku.edu.cn/images/xn_icon.png (expiration not specified)
http://pku.edu.cn/images/xs_icon.jpg (expiration not specified)
http://pku.edu.cn/images/xx_icon.png (expiration not specified)
http://pku.edu.cn/images/yay_icon.jpg (expiration not specified)
http://pku.edu.cn/images/zt_icon.jpg (expiration not specified)
http://pku.edu.cn/images/zt_img.jpg (expiration not specified)
http://pku.edu.cn/images/zt_img1.jpg (expiration not specified)
http://pku.edu.cn/images/zt_img2.jpg (expiration not specified)
http://pku.edu.cn/images/zt_img3.jpg (expiration not specified)
http://pku.edu.cn/images/zt_img4.jpg (expiration not specified)
http://pku.edu.cn/img/arrow_left.png (expiration not specified)
http://pku.edu.cn/img/arrow_right.png (expiration not specified)
http://pku.edu.cn/img/celebrities/maozedong.png (expiration not specified)
http://pku.edu.cn/img/celebrities/renhongjuan.png (expiration not specified)
http://pku.edu.cn/img/channel_about.jpg (expiration not specified)
http://pku.edu.cn/img/channel_academic.jpg (expiration not specified)
http://pku.edu.cn/img/channel_admissions.jpg (expiration not specified)
http://pku.edu.cn/img/channel_collaboration.jpg (expiration not specified)
http://pku.edu.cn/img/channel_education.jpg (expiration not specified)
http://pku.edu.cn/img/channel_life.jpg (expiration not specified)
http://pku.edu.cn/img/channel_research.jpg (expiration not specified)
http://pku.edu.cn/img/news/484d7eb258891a2c90f907.jpg (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a19e7cfc001.jpg (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a1b57ee3f43.png (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a1bbe9d911a.png (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a1bc535e222.jpg (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a1bca60f609.jpg (expiration not specified)
http://pku.edu.cn/img/news/64006a60c64a1bd1304840.jpg (expiration not specified)
http://pku.edu.cn/img/news/989096b27fe11a0cab7601.jpg (expiration not specified)
http://pku.edu.cn/img/news/b8e85609d4181a81320c01.JPG (expiration not specified)
http://pku.edu.cn/img/pkualumni.png (expiration not specified)
http://pku.edu.cn/img/pkubbs.png (expiration not specified)
http://pku.edu.cn/img/pkucloud1h100.png (expiration not specified)
http://pku.edu.cn/img/pkuinfosvc.png (expiration not specified)
http://pku.edu.cn/img/pkulogo_white.png (expiration not specified)
http://pku.edu.cn/img/pkuweixin.png (expiration not specified)
http://pku.edu.cn/img/pkuxinqingnian.png (expiration not specified)
http://pku.edu.cn/img/pkuyinxin.png (expiration not specified)
http://pku.edu.cn/img/xs_img.jpg (expiration not specified)
http://pku.edu.cn/js/banner.js (expiration not specified)
http://pku.edu.cn/js/jquery.easing-1.3.js (expiration not specified)
http://pku.edu.cn/js/jquery.iosslider.js (expiration not specified)
http://pku.edu.cn/js/pku.js (expiration not specified)
http://pku.edu.cn/js/responsiveslides.min.js (expiration not specified)
http://pku.edu.cn/js/slider.js (expiration not specified)

priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://pku.edu.cn/files/jq.js
http://pku.edu.cn/files/comm.js
http://pku.edu.cn/files/jquery.easing-1.3.js
http://pku.edu.cn/files/jquery.iosslider.js
http://pku.edu.cn/files/visualMacth.js
http://pku.edu.cn/js/pku.js
http://pku.edu.cn/js/slider.js

Optimize CSS Delivery of the following:

http://pku.edu.cn/css/indexi.css
http://pku.edu.cn/files/basei.css
http://pku.edu.cn/files/index.css
http://pku.edu.cn/files/thuicon.css
http://pku.edu.cn/css/font-awesome.min.css
http://pku.edu.cn/files/mmenu.css
http://pku.edu.cn/css/pku.css

priority - 40Enable 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 387.5KiB (77% reduction).

Compressing http://pku.edu.cn/files/jquery.iosslider.js could save 85.8KiB (85% reduction).
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Compressing http://pku.edu.cn/files/jq.js could save 59.8KiB (64% reduction).
Compressing http://pku.edu.cn/ could save 43.7KiB (75% reduction).
Compressing http://pku.edu.cn/files/index.css could save 24.8KiB (81% reduction).
Compressing http://pku.edu.cn/css/font-awesome.min.css could save 20.7KiB (77% reduction).
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Compressing http://pku.edu.cn/files/basei.css could save 12.6KiB (76% reduction).
Compressing http://pku.edu.cn/files/thuicon.css could save 9.6KiB (82% reduction).
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priority - 6Minify 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 60.2KiB (29% reduction).

Minifying http://pku.edu.cn/files/jquery.iosslider.js could save 27.9KiB (28% reduction).
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Minifying http://pku.edu.cn/files/visualMacth.js could save 4KiB (41% reduction).
Minifying http://pku.edu.cn/files/comm.js could save 1.8KiB (38% reduction).
Minifying http://pku.edu.cn/js/pku.js could save 1.2KiB (24% reduction).
Minifying http://pku.edu.cn/js/jquery.easing-1.3.js could save 1.2KiB (25% reduction).
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Minifying http://pku.edu.cn/js/banner.js could save 738B (33% reduction).
Minifying http://pku.edu.cn/js/slider.js could save 169B (11% reduction).

priority - 2Minify 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 20.7KiB (21% reduction).

Minifying http://pku.edu.cn/css/indexi.css could save 6.1KiB (24% reduction).
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Minifying http://pku.edu.cn/files/mmenu.css could save 674B (17% reduction).

priority - 1Minify 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 11KiB (19% reduction).

Minifying http://pku.edu.cn/ could save 11KiB (19% reduction).

pku.edu.cn Mobile Resource Breakdown

Total Resources110
Number of Hosts4
Static Resources94
JavaScript Resources19
CSS Resources8

pku.edu.cn mobile page usability

Last tested: 2018-01-23


Mobile Usability Good
99/100

pku.edu.cn Mobile Usability Test Quick Summary


priority - 0Size 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()"></a> is close to 1 other tap targets.

The tap target <a href="http://pkunews…/node_5299.htm">北京大学第十三次党代会</a> and 4 others are close to other tap targets.

pku.edu.cn HTML validation

Errors

Attribute “mce_href” not allowed on element “link” at this point.

Line: 13 Column: 1 - 98
"...ript> --> <link rel="shortcut icon" href="/pku_favicon.ico" mce_href="/pku_favicon.ico" type="image/x-icon"> <lin..." Line: 14 Column: 2 - 90
"...x-icon"> <link rel="icon" href="/pku_favicon.ico" mce_href="/pku_favicon.ico" type="image/x-icon"> <li..."

Element “li” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 62 Column: 21 - 36
"... <li id="portal"><a hre..." Line: 63 Column: 6 - 18
".../li> <li id="its"><a hre..." Line: 64 Column: 6 - 18
".../li> <li id="bbs"><a hre..." Line: 65 Column: 21 - 106
"... <li class="subNavlogo" style="padding-left:17px;padding-right:12px;padding-top:9px;"> ..."

Duplicate ID “students”.

Line: 76 Column: 6 - 24
"...ft"> <li id="students" ><a hre..."

Duplicate ID “facultystaff”.

Line: 77 Column: 6 - 28
".../li> <li id="facultystaff" ><a hre..."

Duplicate ID “alumni”.

Line: 78 Column: 6 - 21
".../li> <li id="alumni"><a hre..."

Duplicate ID “parents”.

Line: 79 Column: 6 - 23
".../li> <li id="parents" ><a hre..."

Duplicate ID “visitors”.

Line: 80 Column: 6 - 24
".../li> <li id="visitors" ><a hre..."

Duplicate ID “jobs”.

Line: 81 Column: 6 - 19
".../li> <li id="jobs"><a hre..."

Duplicate ID “giving”.

Line: 82 Column: 6 - 21
".../li> <li id="giving"><a hre..."

Duplicate ID “portal”.

Line: 86 Column: 6 - 21
"...x;"> <li id="portal"><a hre..."

Duplicate ID “its”.

Line: 87 Column: 6 - 18
".../li> <li id="its"><a hre..." Line: 88 Column: 21 - 33
"... <li id="its"><a hre..." Line: 89 Column: 21 - 33
"... <li id="its"><a hre..."

Duplicate ID “bbs”.

Line: 91 Column: 6 - 18
".../li> <li id="bbs"><a hre..."

The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 116 Column: 13 - 91
"... <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-lg"> <..." Line: 137 Column: 5 - 83
"... --> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-md"> <..."

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

Line: 116 Column: 13 - 91
"... <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-lg"> <..." Line: 137 Column: 5 - 83
"... --> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-md"> <..."

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

Line: 116 Column: 13 - 91
"... <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-lg"> <..." Line: 137 Column: 5 - 83
"... --> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-md"> <..."

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Line: 116 Column: 13 - 91
"... <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-lg"> <..." Line: 137 Column: 5 - 83
"... --> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="show-md"> <..."

Duplicate ID “form_Searchword”.

Line: 129 Column: 7 - 232
"...;"> <input id="form_Searchword" name="form_Searchword2" style="opacity:0.8;background-color:#fff;border:1px solid #C4C4C4;width:70%;margin-right:3px;margin-top:3px;" onFocus="" onBlur="" type="text" onKeyDown="doSearch(event,2)"> ..." Line: 175 Column: 7 - 233
"...;"> <input name="form_Searchword3" id="form_Searchword" style="opacity:0.8;background-color:#fff;border:1px solid #C4C4C4;width:70%;margin-right:3px;margin-top:3px;" onFocus="" onBlur="" type="text" onKeyDown="doSearch(event,3)"> ..."

The “width” attribute on the “td” element is obsolete. Use CSS instead.

Line: 139 Column: 9 - 22
"...> <tr> <td width="35%"><a hre..." Line: 140 Column: 62 - 22
"...况</a></td> <td width="30%"><a hre..." Line: 141 Column: 63 - 22
"...生</a></td> <td width="33%"><a hre..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 192 Column: 78 - 110
"...="北京大学首页"><img src="img/pkulogo_white.png"></a></..." Line: 202 Column: 26 - 71
"...lass="fl"><img src="img/channel_about.jpg" border="0" /></div>..." Line: 225 Column: 26 - 76
"...lass="fl"><img src="img/channel_admissions.jpg" border="0" /></div>..." Line: 248 Column: 26 - 74
"...lass="fl"><img src="img/channel_academic.jpg" border="0" /></div>..." Line: 273 Column: 26 - 75
"...lass="fl"><img src="img/channel_education.jpg" border="0" /></div>..." Line: 302 Column: 26 - 74
"...lass="fl"><img src="img/channel_research.jpg" border="0" /></div>..." Line: 324 Column: 26 - 79
"...lass="fl"><img src="img/channel_collaboration.jpg" border="0" /></div>..." Line: 345 Column: 26 - 70
"...lass="fl"><img src="img/channel_life.jpg" border="0" /></div>..." Line: 440 Column: 92 - 162
"...="_blank"><img src = 'images/content/2019-02/20190218150043171460.jpg' title="" ></a> ..." Line: 450 Column: 71 - 141
"...:void()" ><img src = 'images/content/2019-02/20190214221843685549.jpg' title="" ></a> ..." Line: 460 Column: 71 - 141
"...:void()" ><img src = 'images/content/2019-02/20190219114655576197.jpg' title="" ></a> ..." Line: 470 Column: 71 - 141
"...:void()" ><img src = 'images/content/2019-02/20190204151129717440.jpg' title="" ></a> ..." Line: 480 Column: 71 - 141
"...:void()" ><img src = 'images/content/2019-01/20190118170012013333.jpg' title="" ></a> ..." Line: 490 Column: 71 - 141
"...:void()" ><img src = 'images/content/2019-02/20190203151707280182.png' title="" ></a> ..." Line: 532 Column: 22 - 60
"... href="" ><img src="" width="270" height="130" /> ..." Line: 554 Column: 18 - 55
"... <dt><img src="" width="150" height="95" /> </dt>..." Line: 592 Column: 91 - 122
"...="_blank"><img src="images/rw_icon.jpg" /><span>..." Line: 610 Column: 92 - 124
"...="_blank"><img src="images/yay_icon.jpg" /><span>..." Line: 628 Column: 52 - 83
"...ndex.htm"><img src="images/xs_icon.svg" /><span>..." Line: 631 Column: 182 - 215
"...e:cover;"><img src="img/celebrities/bg.png"><h3></..." Line: 643 Column: 21 - 52
"... <img src="images/zt_icon.svg" /><span>..." Line: 648 Column: 82 - 113
"...1237.htm"><img src="images/zt_img3.jpg" /><h3>专题..." Line: 655 Column: 64 - 95
"....edu.cn/"><img src="images/zt_img1.jpg" /><h3>迎新..." Line: 662 Column: 63 - 93
"....edu.cn/"><img src="images/zt_img.jpg" /><h3>毕业..." Line: 669 Column: 79 - 110
"...gyyy.htm"><img src="images/zt_img4.jpg" /><h3>光影..." Line: 676 Column: 100 - 131
"...295.html"><img src="images/zt_img2.jpg" /><h3>北大..." Line: 689 Column: 55 - 95
"....edu.cn/"><img class="img" src="images/fw_img.jpg"> </a> ..." Line: 692 Column: 35 - 66
"...<h3><span><img src="images/rc_icon.png" /> </spa..." Line: 696 Column: 61 - 102
".../rexian/"><img class="img" src="images/fw_img1.jpg"> </a> ..." Line: 699 Column: 31 - 62
"...<h3><span><img src="images/xf_icon.png" /> </spa..." Line: 703 Column: 56 - 97
"....edu.cn/"><img class="img" src="images/fw_img2.jpg"> </a> ..." Line: 706 Column: 31 - 62
"...<h3><span><img src="images/xn_icon.png" /></span..." Line: 710 Column: 54 - 95
"....edu.cn/"><img class="img" src="images/fw_img3.jpg"> </a> ..." Line: 713 Column: 31 - 62
"...<h3><span><img src="images/jz_icon.png" /> </spa..." Line: 717 Column: 55 - 96
"....edu.cn/"><img class="img" src="images/fw_img4.jpg"> </a> ..." Line: 720 Column: 31 - 62
"...<h3><span><img src="images/gk_icon.png" /> </spa..." Line: 724 Column: 58 - 99
"....edu.cn/"><img class="img" src="images/fw_img5.jpg"> </a> ..." Line: 727 Column: 31 - 62
"...<h3><span><img src="images/mh_icon.png" /> </spa..." Line: 731 Column: 55 - 96
"....edu.cn/"><img class="img" src="images/fw_img9.jpg"> </a> ..." Line: 734 Column: 31 - 62
"...<h3><span><img src="images/xx_icon.png" /> </spa..." Line: 738 Column: 46 - 87
"...ndex.htm"><img class="img" src="images/fw_img6.jpg"> </a> ..." Line: 741 Column: 31 - 62
"...<h3><span><img src="images/lj_icon.png" /> </spa..." Line: 752 Column: 22 - 51
"... <div><img src="img/pkuweixin.png"/><span>..." Line: 753 Column: 22 - 51
"... <div><img src="img/pkuyinxin.png"/><span>..." Line: 754 Column: 22 - 51
"... <div><img src="img/pkualumni.png"/><span>..." Line: 755 Column: 22 - 53
"... <div><img src="img/pkuinfosvc.png" /><span>..." Line: 756 Column: 22 - 56
"... <div><img src="img/pkuxinqingnian.png"/><span>..." Line: 757 Column: 22 - 48
"... <div><img src="img/pkubbs.png"/><span>..." Line: 773 Column: 33 - 67
"...ndex.htm"><img src="img/pkulogo_white.png" /> </a> ..." Line: 789 Column: 35 - 69
"...ndex.htm"><img src="img/pkulogo_white.png" /> </a><..."

Bad value “” for attribute “src” on element “img”: Must be non-empty.

Line: 532 Column: 22 - 60
"... href="" ><img src="" width="270" height="130" /> ..." Line: 554 Column: 18 - 55
"... <dt><img src="" width="150" height="95" /> </dt>..."

Element “li” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)

Line: 540 Column: 17 - 20
"... <li><a hre..." Line: 541 Column: 17 - 20
"... <li><a hre..." Line: 542 Column: 17 - 20
"... <li><a hre..." Line: 543 Column: 10 - 13
"... <li><a hre..."

Stray start tag “div”.

Line: 842 Column: 1 - 41
"...</footer> </body></html><div class="lightbox_back"> </di..."

Cannot recover after last error. Any further errors will be ignored.

Line: 842 Column: 1 - 41
"...</footer> </body></html><div class="lightbox_back"> </di..."

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 21 Column: 2 - 50
"...xt/css"> <script src="files/jq.js" type="text/javascript"></scri..." Line: 22 Column: 2 - 52
".../script> <script src="files/comm.js" type="text/javascript"></scri..." Line: 23 Column: 2 - 65
".../script> <script src="files/jquery.easing-1.3.js" type="text/javascript"></scri..." Line: 24 Column: 2 - 64
".../script> <script src="files/jquery.iosslider.js" type="text/javascript"></scri..." Line: 25 Column: 2 - 59
".../script> <script src="files/visualMacth.js" type="text/javascript"></scri..." Line: 34 Column: 2 - 48
"...xt/css"> <script src="js/pku.js" type="text/javascript"></scri..." Line: 35 Column: 2 - 51
".../script> <script src="js/slider.js" type="text/javascript"></scri..." Line: 385 Column: 1 - 31
"...div> --> <script type="text/javascript"> var ..."

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 46 Column: 13 - 59
"... <section class="ssubNavPKU show-md subNavlogo"> ..." Line: 51 Column: 13 - 48
"... <section class="ssubNavPKU show-lg"> ..." Line: 74 Column: 4 - 47
"... <section class="mainWrap mainWrap02 noline"> <..." Line: 109 Column: 4 - 29
"...ch --> <section class="clearfix"> ..." Line: 114 Column: 4 - 59
"...n] --> <section id="mobileNav" class="onlymobileshow clearfix"> <d..." Line: 44 Column: 3 - 41
"...></div> <section class="subNav yahei clearfix"> ..." Line: 192 Column: 4 - 29
"...fix"> <section class="mainWrap"><a cla..." Line: 196 Column: 5 - 37
"...h;"> <section class="menu" id="smenu"><a cla..." Line: 194 Column: 4 - 72
"...tion> <section class="nav yahei clearfix noMobileShow" style="clear:both;"> ..." Line: 190 Column: 3 - 36
"...ction> <section class="topWrap clearfix"> <..." Line: 42 Column: 2 - 10
"...header"> <section> <di..." Line: 431 Column: 1 - 33
"...开始--> <section class = 'iosSliderDemo'> <di..." Line: 539 Column: 13 - 50
"... <section class="newR" id="newsCenter"> ..." Line: 548 Column: 9 - 30
"...> <section class="conL"> ..." Line: 686 Column: 9 - 38
"...> <section class="fw_wap clear"> ..." Line: 519 Column: 5 - 29
"...束--> <section class="con_wap"> ..." Line: 761 Column: 13 - 32
"... <section class="sf"> ..." Line: 760 Column: 9 - 34
"...> <section class="fot_left"> ..." Line: 772 Column: 9 - 33
"...> <section class="fot_cen"> ..." Line: 775 Column: 7 - 33
"...on> <section class="fot_right"> ..." Line: 759 Column: 5 - 29
".../div> <section class="fot_wap"> ..." Line: 788 Column: 5 - 30
"...tion> <section class="fot_wap6"> ..." Line: 802 Column: 9 - 29
"...> <section class="bq1"> ..." Line: 805 Column: 9 - 29
"...> <section class="bq2"> ..." Line: 808 Column: 9 - 29
"...> <section class="bq3"> ..." Line: 801 Column: 5 - 37
"...tion> <section class="fot_bot clear_f"> ..."

The first occurrence of ID “students” was here.

Line: 53 Column: 6 - 23
"...ft"> <li id="students"><a hre..."

The first occurrence of ID “facultystaff” was here.

Line: 54 Column: 6 - 27
".../li> <li id="facultystaff"><a hre..."

The first occurrence of ID “alumni” was here.

Line: 55 Column: 6 - 21
".../li> <li id="alumni"><a hre..."

The first occurrence of ID “parents” was here.

Line: 56 Column: 6 - 22
".../li> <li id="parents"><a hre..."

The first occurrence of ID “visitors” was here.

Line: 57 Column: 6 - 23
".../li> <li id="visitors"><a hre..."

The first occurrence of ID “jobs” was here.

Line: 58 Column: 6 - 19
".../li> <li id="jobs"><a hre..."

The first occurrence of ID “giving” was here.

Line: 59 Column: 6 - 21
".../li> <li id="giving"><a hre..."

The first occurrence of ID “portal” was here.

Line: 62 Column: 21 - 36
"... <li id="portal"><a hre..."

The first occurrence of ID “its” was here.

Line: 63 Column: 6 - 18
".../li> <li id="its"><a hre..." Line: 63 Column: 6 - 18
".../li> <li id="its"><a hre..." Line: 63 Column: 6 - 18
".../li> <li id="its"><a hre..."

The first occurrence of ID “bbs” was here.

Line: 64 Column: 6 - 18
".../li> <li id="bbs"><a hre..."

The first occurrence of ID “form_Searchword” was here.

Line: 98 Column: 9 - 165
"...> <input id="form_Searchword" name="form_Searchword1" class="searchinp" onFocus="" onBlur="" type="text" placeholder="Search..." onKeyDown="doSearch(event,1)"> <inpu..." Line: 98 Column: 9 - 165
"...> <input id="form_Searchword" name="form_Searchword1" class="searchinp" onFocus="" onBlur="" type="text" placeholder="Search..." onKeyDown="doSearch(event,1)"> <inpu..."

A table row was 2 columns wide, which is less than the column count established by the first row (3).

Line: 134 Column: 11 - 9
"... </td> </tr> </..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 202 Column: 26 - 71
"...lass="fl"><img src="img/channel_about.jpg" border="0" /></div>..." Line: 225 Column: 26 - 76
"...lass="fl"><img src="img/channel_admissions.jpg" border="0" /></div>..." Line: 248 Column: 26 - 74
"...lass="fl"><img src="img/channel_academic.jpg" border="0" /></div>..." Line: 273 Column: 26 - 75
"...lass="fl"><img src="img/channel_education.jpg" border="0" /></div>..." Line: 302 Column: 26 - 74
"...lass="fl"><img src="img/channel_research.jpg" border="0" /></div>..." Line: 324 Column: 26 - 79
"...lass="fl"><img src="img/channel_collaboration.jpg" border="0" /></div>..." Line: 345 Column: 26 - 70
"...lass="fl"><img src="img/channel_life.jpg" border="0" /></div>..."

Empty heading.

Line: 533 Column: 17 - 20
"... <h3></h3><..." Line: 556 Column: 25 - 28
"... <h3><a hre..." Line: 597 Column: 152 - 155
"...e:cover;"><h3></h3><..." Line: 601 Column: 21 - 24
"... <h3></h3> ..." Line: 615 Column: 138 - 141
"...e:cover;"><h3></h3><..." Line: 619 Column: 21 - 24
"... <h3></h3> ..." Line: 631 Column: 216 - 219
"...s/bg.png"><h3></h3><..." Line: 635 Column: 21 - 24
"... <h3></h3> ..."

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Line: 428 Column: 1 - 25
".../script> <article class="content"> <..."

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pku.edu.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.


pku.edu.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.