51.com Website Information

Daily Unique Visits: 61,365

Daily Page Views: 368,190

Income Per Day: $736

Estimated Value: $529,920

51.com is registered under .COM top-level domain. Please check other sites in .COM zone.

No name server records were found.

and is probably hosted by CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN. See the full list of other websites hosted by CHINA169-BACKBONE CHINA UNICOM China169 Backbone, CN.

The highest website 51.com position in Alexa rank database was 1791 and the lowest rank position was 793301. Current position of 51.com in Alexa rank database is 23372.

Desktop speed score of 51.com (29/100) is better than the results of 7.9% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of 51.com (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.

Mobile speed score of 51.com (31/100) is better than the results of 10.59% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

51.com 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.

51.com 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.

Domain Name: 51.COM
Registry Domain ID: 3813675_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.paycenter.com.cn
Registrar URL: http://www.xinnet.com
Updated Date: 2024-06-05T07:03:37Z
Creation Date: 1998-07-10T04:00:00Z
Registry Expiry Date: 2028-07-09T04:00:00Z
Registrar: Xin Net Technology Corporation
Registrar IANA ID: 120
Registrar Abuse Contact Email: supervision@xinnet.com
Registrar Abuse Contact Phone: +86.4008182233
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS3.DNSV4.COM
Name Server: NS4.DNSV4.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-10T22:02:45Z

51.com server information

Servers Location

51.com desktop page speed rank

Last tested: 2017-05-01

Desktop Speed Bad

29/100

51.com Desktop Speed Test Quick Summary

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priority - 15Minify JavaScript

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priority - 14Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 11Leverage browser caching

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51.com Desktop Resource Breakdown

Total Resources	146
Number of Hosts	18
Static Resources	129
JavaScript Resources	5
CSS Resources	4

51.com mobile page speed rank

Last tested: 2017-04-27

Mobile Speed Bad

31/100

51.com Mobile Speed Test Quick Summary

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priority - 56Eliminate 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:

http://cdn.51img1.com/??v6/global/js/jquery.js?v=2…51/slide/js/md5.js?v=3
http://cdn.51img1.com/v6/passport/js/loginframe.js?v=201704113

Optimize CSS Delivery of the following:

priority - 45Enable 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 435.4KiB (77% reduction).

Compressing http://cdn.51img1.com/??v6/global/js/jquery.js?v=2…51/slide/js/md5.js?v=3 could save 222.6KiB (74% reduction).
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priority - 16Leverage 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://photo.51img1.com/gpza/M00/69/48/CgsNd1kCD8iAATqCAAAkduZACjM112.jpg (10 minutes)
http://photo.51img1.com/gpza/M03/00/BF/wKgNd1QHCw6ARfwLAAAYF2UUkIY618.jpg (10 minutes)
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http://photo.51img1.com/gpza/M05/58/91/wKgNeFQJwVWAbo7PAAASHOYpyHw170.jpg (10 minutes)
http://photo.51img1.com/gpza/M07/00/4C/wKgNd1QHCkaAKKcOAAAVU6upXpo568.jpg (10 minutes)
http://photo.51img1.com/gpza/M07/48/DA/wKgNd1QJrR-ATxzXAAAXSxLu-9I294.jpg (10 minutes)
http://photo.51img1.com/gpza/M09/54/28/wKgNeFQJu2mAZ5x-AAARX87ts54489.jpg (10 minutes)
http://photo.51img1.com/gpzb/M00/12/8D/wKgNelQJMu2AeTWyAAAU_fZ5XCM429.jpg (10 minutes)
http://photo.51img1.com/gpzb/M00/12/8E/wKgNelQJMu2AdNMLAAAdjzX6D84873.jpg (10 minutes)
http://photo.51img1.com/gpzb/M05/69/45/CgsNeVkCARGAYFCzAAAeg5nKjXU739.jpg (10 minutes)
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http://photo.51img1.com/gpzc/M07/69/46/CgsNe1kCAQmAF9itAAAs1Ga9k3s254.jpg (10 minutes)

priority - 15Minify 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 147.1KiB (26% reduction).

51.com Mobile Resource Breakdown

Total Resources	142
Number of Hosts	18
Static Resources	125
JavaScript Resources	5
CSS Resources	4

51.com mobile page usability

Last tested: 2017-04-27

Mobile Usability Bad

64/100

51.com Mobile Usability Test Quick Summary

priority - 40Use 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.

保存到桌面 and 2 others render only 5 pixels tall (12 CSS pixels).

51游戏app，我要你好玩！ renders only 5 pixels tall (12 CSS pixels).

注册 and 1 others render only 5 pixels tall (12 CSS pixels).

导航 renders only 5 pixels tall (12 CSS pixels).

所有游戏 renders only 5 pixels tall (12 CSS pixels).

首页 renders only 5 pixels tall (14 CSS pixels).

游戏中心 and 6 others render only 5 pixels tall (14 CSS pixels).

帐号登录 renders only 5 pixels tall (14 CSS pixels).

扫码登录防盗号 renders only 5 pixels tall (14 CSS pixels).

快速注册 renders only 6 pixels tall (16 CSS pixels).

用户名/邮箱/手机号 and 1 others render only 5 pixels tall (12 CSS pixels).

自动登录 renders only 5 pixels tall (12 CSS pixels).

忘记密码？ and 1 others render only 5 pixels tall (12 CSS pixels).

登录 renders only 6 pixels tall (16 CSS pixels).

使用其他方式登录 renders only 5 pixels tall (12 CSS pixels).

装备靠打、升级靠挂 renders only 5 pixels tall (12 CSS pixels).

自己也不知道该怎么办好，所以…是我做不到，不断地纠结着…… and 14 others render only 5 pixels tall (12 CSS pixels).

铁血皇城 and 2 others render only 5 pixels tall (14 CSS pixels).

三国群雄传 and 2 others render only 5 pixels tall (14 CSS pixels).

2017-04-27 23:41:01 and 8 others render only 5 pixels tall (12 CSS pixels).

进入新区 and 2 others render only 5 pixels tall (12 CSS pixels).

沪公网安备 31011502002407号 and 35 others render only 5 pixels tall (14 CSS pixels).

122M and 3 others render only 5 pixels tall (12 CSS pixels).

羽旭蕊506149025： and 3 others render only 5 pixels tall (12 CSS pixels).

首次充值，天降壕礼，免费送！ renders only 5 pixels tall (14 CSS pixels).

静静芣離缐 and 4 others render only 5 pixels tall (12 CSS pixels).
美丽 and 4 others render only 5 pixels tall (12 CSS pixels).
推荐网页游戏： renders only 5 pixels tall (14 CSS pixels).
| and 18 others render only 5 pixels tall (14 CSS pixels).
要求：您的网站pr>=6百度…seo@heitao.com renders only 5 pixels tall (14 CSS pixels).
| and 4 others render only 5 pixels tall (14 CSS pixels).
地址：上海浦东张江中科路699号惠生大厦B栋6F and 4 others render only 5 pixels tall (14 CSS pixels).
更多>> renders only 5 pixels tall (12 CSS pixels).

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.

priority - 7Size 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 id="head_set_homepage" href="javascript:void(0);" class="home_ico">设为首页</a> is close to 1 other tap targets.

The tap target <a href="//passport.51.com/reg/email">注册</a> and 1 others are close to other tap targets.

The tap target <a id="pub_head_map_a_id" href="javascript:void(0)" class="map">导航</a> is close to 2 other tap targets.

The tap target <a id="pub_head_allgame_a_id" href="javascript:void(0)" class="all">所有游戏</a> is close to 1 other tap targets.

The tap target <a href="//www.51.com">首页</a> is close to 1 other tap targets.

The tap target <a href="http://pay.51.com">充值</a> and 1 others are close to other tap targets.

The tap target <a id="frame_login_regButton" href="javascript:void(0);">快速注册</a> is close to 1 other tap targets.

The tap target <input id="frame_login_user" type="text" class="t"> is close to 1 other tap targets.

The tap target <label id="frame_login_label_user" class="t_label">用户名/邮箱/手机号</label> and 1 others are close to other tap targets.

The tap target <input id="frame_login_pass" type="password" class="t"> is close to 1 other tap targets.

The tap target <input id="frame_login_auto_login" type="checkbox"> is close to 2 other tap targets.

The tap target <a href="javascript:void(0);">手机登录</a> and 1 others are close to other tap targets.

The tap target

<div id="outContCommend" class="announce_con">装备靠打、升级靠挂解开《盗墓笔记》最后大结局！</div>

is close to 3 other tap targets.

The tap target <a href="//game.51.com/…www_xiaolaba_1">装备靠打、升级靠挂</a> is close to 3 other tap targets.

The tap target <a href="//game.51.com">更多</a> and 14 others are close to other tap targets.

The tap target <a href="http://sgqxz.51.com/" class="links">官网</a> and 2 others are close to other tap targets.

The tap target <a href="javascript:void(0)">换一换</a> is close to 3 other tap targets.

The tap target <a href="javascript:void(0)">换一换</a> and 23 others are close to other tap targets.

The tap target <a href="javascript:void(0)" class="love png24"></a> and 6 others are close to other tap targets.

The tap target <a href="http://jiaoyou.51.com" class="near png24"></a> and 2 others are close to other tap targets.

The tap target <a href="http://home.51…i2007/loveinfo" class="name">Isa：</a> and 2 others are close to other tap targets.

The tap target <a href="http://home.51…005128838.html"></a> and 2 others are close to other tap targets.

The tap target

<div id="outContMm" class="announce_con">首次充值，天降壕礼，免费送！…..找妹子，就来51视频交友</div>

is close to 3 other tap targets.

The tap target <a href="http://v.51.co…www_xiaolaba_2">首次充值，天降壕礼，免费送！</a> is close to 3 other tap targets.

The tap target <a id="turn" href="javascript:void(0)" class="turn_gray png24"></a> is close to 2 other tap targets.
The tap target <a href="//dmbj.51.com/…y=www_xinwen_4"></a> is close to 2 other tap targets.
The tap target <a id="turn_r" href="javascript:void(0)" class="turn turn_r png24"></a> is close to 2 other tap targets.
The tap target <a href="http://www.bei…31011502002407">沪公网安备 31011502002407号</a> is close to 2 other tap targets.
The tap target <a href="https://www.sg…loboylv&tab=01"></a> is close to 1 other tap targets.
The tap target <a href="//www.51.com/copyright1.html" class="mr">更多>></a> is close to 1 other tap targets.
The tap target <a id="floatdiv_box_a_id" href="http://gamebox.51.com/" class="public_rquick_box"> is close to 1 other tap targets.
The tap target <a id="floatdiv_gfwechat_a_id" href="//kf.51.com/" class="public_rquick_mm"> is close to 2 other tap targets.
The tap target <a id="floatdiv_wx_a_id" href="javascript:void(0);" class="public_rquick_wx"> is close to 1 other tap targets.

priority - 3Size 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 1,200 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

The element <a href="http://v.51.com">更多</a> falls outside the viewport.
The element <div id="www_zhubo_div_id" class="clear">尹蔷薇丶…我肥来拉。美丽</div> falls outside the viewport.

51.com HTML validation

Errors

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Line: 8 Column: 125 - 241
"...和客户服务。" /><link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/global/css/layer.css?v=201807063" /> <link..." Line: 9 Column: 1 - 122
"...07063" /> <link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/global2015/css/global.css?v=201807263" /> <scri..." Line: 33 Column: 10 - 125
"... </script><link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/www/css/www2015.css?v=201807263" /> <link..." Line: 34 Column: 1 - 120
"...07263" /> <link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/www/css/www_special.css?v=201807263" /> <link..." Line: 35 Column: 1 - 131
"...07263" /> <link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/game/website/common/css/common.css?v=201812293" /> <scri..." Line: 37 Column: 1 - 134
"...</script> <link rel="stylesheet" type="text/css" charset="UTF-8" href="//cdn.51img1.com/v6/global2017/new_game/css/game_head.css?v=201902203" /> </hea..."

Attribute “pos” not allowed on element “a” at this point.

Line: 190 Column: 60 - 245
"...ute;"><li><a rel="nofollow" pos="www_xiaolaba_1" onclick="global_js_page.imgstat(this, true)" href="//game.51.com/newserver/index/ldj?from_ly=www_xiaolaba_1" target="_blank" style="color:#ff0000">七个老婆都是..." Line: 190 Column: 276 - 438
"...></li><li><a rel="nofollow" pos="www_xiaolaba_1" onclick="global_js_page.imgstat(this, true)" href="//game.51.com/newserver/index/hy?from_ly=www_xiaolaba_1" target="_blank">装备靠打、升..." Line: 454 Column: 60 - 212
"...ute;"><li><a rel="nofollow" pos="www_xiaolaba_2" onclick="global_js_page.imgstat(this, true)" href="http://v.kukushow.com/?from_ly=www_xiaolaba_2" target="_blank">前方高能预警..." Line: 454 Column: 258 - 409
"...></li><li><a rel="nofollow" pos="www_xiaolaba_2" onclick="global_js_page.imgstat(this, true)" href="http://v.kukushow.com?from_ly=www_xiaolaba_2" target="_blank">宅男必备神器..." Line: 454 Column: 436 - 588
"...></li><li><a rel="nofollow" pos="www_xiaolaba_2" onclick="global_js_page.imgstat(this, true)" href="http://v.kukushow.com/?from_ly=www_xiaolaba_2" target="_blank">线上交友，美..." Line: 454 Column: 619 - 770
"...></li><li><a rel="nofollow" pos="www_xiaolaba_2" onclick="global_js_page.imgstat(this, true)" href="http://v.kukushow.com?from_ly=www_xiaolaba_2" target="_blank">..." Line: 454 Column: 796 - 969
"...></li><li><a rel="nofollow" pos="www_xiaolaba_2" onclick="global_js_page.imgstat(this, true)" href="http://v.kukushow.com/notice/first_recharge?from_ly=www_xiaolaba_2" target="_blank">首次充值，天..."

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

Line: 200 Column: 5 - 139
"...Box"> <img id="www_tuijian_1" width="220" height="330" src="//cdn.51img3.com/game/2018/201812/20181227/44897a8b0360d040886a77fb13ae2c23.jpg"> <..." Line: 219 Column: 5 - 139
"...Box"> <img id="www_tuijian_2" width="220" height="330" src="//cdn.51img3.com/game/2018/201803/20180329/fcf00e7f7f0ba66e55ef8163495703b6.jpg"> <..." Line: 238 Column: 5 - 139
"...Box"> <img id="www_tuijian_3" width="220" height="330" src="//cdn.51img3.com/game/2018/201812/20181210/5e51663d18ded93fcef5f9502104af4b.jpg"> <..." Line: 257 Column: 5 - 139
"...Box"> <img id="www_tuijian_4" width="220" height="330" src="//cdn.51img3.com/game/2018/201808/20180823/798763906b0473657de34df2f6936e76.jpg"> <..." Line: 280 Column: 9 - 144
"...> <img pos="www_tuijian_5" width="220" height="120" src="//cdn.51img3.com/game/2018/201807/20180711/acb37ec94967bdefa97316dae2f48f46.jpg"></a> ..." Line: 291 Column: 9 - 144
"...> <img pos="www_tuijian_6" width="220" height="120" src="//cdn.51img3.com/game/2018/201808/20180809/6de9373b66f32359307ebd0a6f34c654.jpg"></a> ..." Line: 302 Column: 9 - 144
"...> <img pos="www_tuijian_7" width="220" height="120" src="//cdn.51img3.com/game/2018/201804/20180402/9970ea84164eeb9f31db17b370dfbcf8.jpg"></a> ..." Line: 313 Column: 9 - 144
"...> <img pos="www_tuijian_8" width="220" height="120" src="//cdn.51img3.com/game/2018/201808/20180823/d2f8e9384158f99cb5eed50f2ee6378c.jpg"></a> ..." Line: 334 Column: 135 - 237
"...="_blank"><img src="//cdn.51img3.com/game/2017/201707/20170720/b3ffe32a967fe4e1471bad8950082dc2.png" class="pic"></a> ..." Line: 338 Column: 32 - 86
"... <p><img src="//p8cdn.51img1.com/v6/www/images/star_5.png"></p> ..." Line: 342 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201707/20170720/8b7aff883c21d5ec6efc0c3e0b509cfb.png"> ..." Line: 346 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201710/20171017/7bee276ad2a49c01f94e5d2bdb3affbb.png"> ..." Line: 354 Column: 136 - 238
"...="_blank"><img src="//cdn.51img3.com/game/2017/201712/20171204/9c1188f3085749b9308da4b2d2aaaf21.png" class="pic"></a> ..." Line: 358 Column: 32 - 86
"... <p><img src="//p8cdn.51img1.com/v6/www/images/star_5.png"></p> ..." Line: 362 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201712/20171204/75e03f2d6f58a7470d2835cb556f64ca.png"> ..." Line: 366 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201710/20171017/7bee276ad2a49c01f94e5d2bdb3affbb.png"> ..." Line: 374 Column: 135 - 237
"...="_blank"><img src="//cdn.51img3.com/game/2017/201709/20170912/39d88e71f535ac56aa7fa587097bf352.png" class="pic"></a> ..." Line: 378 Column: 32 - 86
"... <p><img src="//p8cdn.51img1.com/v6/www/images/star_5.png"></p> ..." Line: 382 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201709/20170912/907c4aa75882d7f5611d433595854b02.png"> ..." Line: 386 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201710/20171017/7bee276ad2a49c01f94e5d2bdb3affbb.png"> ..." Line: 394 Column: 115 - 217
"...="_blank"><img src="//cdn.51img3.com/game/2017/201703/20170306/ebde42775bce3cb3ee192a35e4282849.png" class="pic"></a> ..." Line: 398 Column: 32 - 86
"... <p><img src="//p8cdn.51img1.com/v6/www/images/star_5.png"></p> ..." Line: 402 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201703/20170306/25000e5fda073e1c1331dfa5003a248f.jpg"> ..." Line: 406 Column: 7 - 97
"...iv> <img src="//cdn.51img3.com/game/2017/201710/20171017/7bee276ad2a49c01f94e5d2bdb3affbb.png"> ..." Line: 419 Column: 21 - 132
"... <img pos="www_libaoxia_1" src="//cdn.51img3.com/game/2018/201808/20180829/15a4c04605b0b0c27d09231807fcb8b2.jpg"></a> ..." Line: 463 Column: 29 - 154
"... <img pos="www_zhubo_1" id="www_zhubo_1" src="//cdn.51img3.com/game/2017/201704/20170405/7a836bd228f2c95c4fac405f03804847.jpg"> ..." Line: 479 Column: 13 - 150
"... <img pos="www_zhubo_2" id="www_zhubo_2" src="//cdn.51img3.com/game/2017/201703/20170321/6232b2a8f1d8669c81aa1de6ef5e899c.jpg" class="pic"> ..." Line: 495 Column: 13 - 150
"... <img pos="www_zhubo_3" id="www_zhubo_3" src="//cdn.51img3.com/game/2017/201703/20170321/6bd126b7952b8f9a3a8b925d3bac5021.jpg" class="pic"> ..." Line: 511 Column: 13 - 150
"... <img pos="www_zhubo_4" id="www_zhubo_4" src="//cdn.51img3.com/game/2017/201703/20170321/87204257716dbc53f68e63f7b64011ef.jpg" class="pic"> ..." Line: 527 Column: 13 - 150
"... <img pos="www_zhubo_5" id="www_zhubo_5" src="//cdn.51img3.com/game/2017/201703/20170321/a704aefb231c16348db4821547a7b1b0.jpg" class="pic"> ..." Line: 543 Column: 13 - 150
"... <img pos="www_zhubo_6" id="www_zhubo_6" src="//cdn.51img3.com/game/2017/201703/20170321/462d613a0fbf467d5701540d263f2b1c.jpg" class="pic"> ..." Line: 559 Column: 13 - 150
"... <img pos="www_zhubo_7" id="www_zhubo_7" src="//cdn.51img3.com/game/2017/201703/20170321/92b25854127ac6db6cbc2672d9a76996.jpg" class="pic"> ..." Line: 647 Column: 29 - 138
"... <img pos="www_xinwen_1" src="//cdn.51img3.com/game/2018/201812/20181227/9b1cb01ed273f87e1314acbe7bb5ffc6.jpg"> ..." Line: 652 Column: 29 - 138
"... <img pos="www_xinwen_2" src="//cdn.51img3.com/game/2017/201711/20171121/5ff7f60464bcc6e920dd5cac12034b28.jpg"> ..." Line: 657 Column: 29 - 138
"... <img pos="www_xinwen_3" src="//cdn.51img3.com/game/2018/201804/20180402/0cab2f374ee0484734b6592ebefe4dc8.jpg"> ..." Line: 662 Column: 29 - 138
"... <img pos="www_xinwen_4" src="//cdn.51img3.com/game/2017/201709/20170905/cc78741e2ee098c2c8aa77a4d797dee4.jpg"> ..." Line: 667 Column: 29 - 138
"... <img pos="www_xinwen_5" src="//cdn.51img3.com/game/2018/201807/20180724/a994548f307358fab4dd53b80bcfdbee.jpg"> ..." Line: 672 Column: 29 - 138
"... <img pos="www_xinwen_6" src="//cdn.51img3.com/game/2016/201609/20160923/841268ede49963293cc783a3e8f15b84.jpg"> ..." Line: 677 Column: 29 - 138
"... <img pos="www_xinwen_7" src="//cdn.51img3.com/game/2016/201605/20160505/88d2fb31ca2208ff10834f16d5164481.jpg"> ..." Line: 682 Column: 29 - 138
"... <img pos="www_xinwen_8" src="//cdn.51img3.com/game/2017/201712/20171206/e1c3adf8fa22100dab0dfa6e9dbeb763.jpg"> ..." Line: 687 Column: 29 - 138
"... <img pos="www_xinwen_9" src="//cdn.51img3.com/game/2016/201605/20160505/e85e6624da27d9815c36b85638b8f478.jpg"> ..." Line: 736 Column: 160 - 276
"...on:none;"><img style="margin-right:5px;" src="//cdn.51img3.com/game/2016/201608/20160815/5cfdb8a9f2e91a7d46e005c0058750ab.png">沪公网安备 ..." Line: 739 Column: 81 - 142
"...nofollow"><img src="//pecdn.51img1.com/v6/global2015/images/c1.png?v=3"></a><a..." Line: 739 Column: 210 - 273
"...nofollow"><img src="//pacdn.51img1.com/v6/global2015/images/bottom_1.jpg"></a><a..." Line: 739 Column: 382 - 439
"...nofollow"><img src="//p7cdn.51img1.com/v6/global2015/images/c4.png"></a><a..." Line: 739 Column: 572 - 629
"...ofollow"><img src="//pacdn.51img1.com/v6/global2015/images/c5.png"></a><a ..." Line: 739 Column: 774 - 834
"...ofollow"><img src="//pacdn.51img1.com/v6/global2015/images/c_net.png"></a> ..." Line: 758 Column: 9 - 73
"...> <img src="//p9cdn.51img1.com/v6/global2015/images/box_image.png"> ..." Line: 770 Column: 9 - 76
"...> <img src="//cdn.51img1.com/v6/game/app/down/images/ewm_img.png?v=1"> ..." Line: 780 Column: 9 - 75
"...> <img src="//cdn.51img1.com/v6/global2015/images/qq.jpg?v=20160505"> ..." Line: 791 Column: 9 - 98
"...> <img src="//cdn.51img1.com/v6/global/images/ewm/wx.jpg" style="width:180px;height:180px;"> <..." Line: 798 Column: 9 - 99
"...> <img src="//cdn.51img3.com/game/2017/201707/20170719/bef85cc0e47bf9ad096e074da86bdf6a.png"> ..." Line: 857 Column: 130 - 212
"...，退下吧 <img src="//cdn.51img1.com/v6/game/platform/2015/images/poup_close.png" border="0"></a></..."

Attribute “pos” not allowed on element “img” at this point.

Line: 280 Column: 9 - 144
"...> <img pos="www_tuijian_5" width="220" height="120" src="//cdn.51img3.com/game/2018/201807/20180711/acb37ec94967bdefa97316dae2f48f46.jpg"></a> ..." Line: 291 Column: 9 - 144
"...> <img pos="www_tuijian_6" width="220" height="120" src="//cdn.51img3.com/game/2018/201808/20180809/6de9373b66f32359307ebd0a6f34c654.jpg"></a> ..." Line: 302 Column: 9 - 144
"...> <img pos="www_tuijian_7" width="220" height="120" src="//cdn.51img3.com/game/2018/201804/20180402/9970ea84164eeb9f31db17b370dfbcf8.jpg"></a> ..." Line: 313 Column: 9 - 144
"...> <img pos="www_tuijian_8" width="220" height="120" src="//cdn.51img3.com/game/2018/201808/20180823/d2f8e9384158f99cb5eed50f2ee6378c.jpg"></a> ..." Line: 419 Column: 21 - 132
"... <img pos="www_libaoxia_1" src="//cdn.51img3.com/game/2018/201808/20180829/15a4c04605b0b0c27d09231807fcb8b2.jpg"></a> ..." Line: 463 Column: 29 - 154
"... <img pos="www_zhubo_1" id="www_zhubo_1" src="//cdn.51img3.com/game/2017/201704/20170405/7a836bd228f2c95c4fac405f03804847.jpg"> ..." Line: 479 Column: 13 - 150
"... <img pos="www_zhubo_2" id="www_zhubo_2" src="//cdn.51img3.com/game/2017/201703/20170321/6232b2a8f1d8669c81aa1de6ef5e899c.jpg" class="pic"> ..." Line: 495 Column: 13 - 150
"... <img pos="www_zhubo_3" id="www_zhubo_3" src="//cdn.51img3.com/game/2017/201703/20170321/6bd126b7952b8f9a3a8b925d3bac5021.jpg" class="pic"> ..." Line: 511 Column: 13 - 150
"... <img pos="www_zhubo_4" id="www_zhubo_4" src="//cdn.51img3.com/game/2017/201703/20170321/87204257716dbc53f68e63f7b64011ef.jpg" class="pic"> ..." Line: 527 Column: 13 - 150
"... <img pos="www_zhubo_5" id="www_zhubo_5" src="//cdn.51img3.com/game/2017/201703/20170321/a704aefb231c16348db4821547a7b1b0.jpg" class="pic"> ..." Line: 543 Column: 13 - 150
"... <img pos="www_zhubo_6" id="www_zhubo_6" src="//cdn.51img3.com/game/2017/201703/20170321/462d613a0fbf467d5701540d263f2b1c.jpg" class="pic"> ..." Line: 559 Column: 13 - 150
"... <img pos="www_zhubo_7" id="www_zhubo_7" src="//cdn.51img3.com/game/2017/201703/20170321/92b25854127ac6db6cbc2672d9a76996.jpg" class="pic"> ..."

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

Line: 645 Column: 21 - 24
"... <dt> ..." Line: 650 Column: 21 - 24
"... <dt> ..." Line: 655 Column: 21 - 24
"... <dt> ..." Line: 660 Column: 21 - 24
"... <dt> ..." Line: 665 Column: 21 - 24
"... <dt> ..." Line: 670 Column: 21 - 24
"... <dt> ..." Line: 675 Column: 21 - 24
"... <dt> ..." Line: 680 Column: 21 - 24
"... <dt> ..." Line: 685 Column: 21 - 24
"... <dt> ..."

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

Line: 649 Column: 26 - 29
"... </dt><dd><a hre..." Line: 649 Column: 118 - 121
"...告</a></dd><dd><a hre..." Line: 649 Column: 209 - 212
"...告</a></dd><dd><a hre..." Line: 649 Column: 298 - 301
"...启</a></dd><dd><a hre..." Line: 654 Column: 26 - 29
"... </dt><dd><a hre..." Line: 654 Column: 120 - 123
"...天</a></dd><dd><a hre..." Line: 654 Column: 217 - 220
"...%</a></dd><dd><a hre..." Line: 654 Column: 302 - 305
"...袭</a></dd><dd><a hre..." Line: 659 Column: 26 - 29
"... </dt><dd><a hre..." Line: 659 Column: 115 - 118
"...示</a></dd><dd><a hre..." Line: 659 Column: 202 - 205
"...告</a></dd><dd><a hre..." Line: 659 Column: 288 - 291
"...利</a></dd><dd><a hre..." Line: 664 Column: 26 - 29
"... </dt><dd><a hre..." Line: 664 Column: 124 - 127
"...服</a></dd><dd><a hre..." Line: 664 Column: 222 - 225
"...服</a></dd><dd><a hre..." Line: 664 Column: 311 - 314
"...告</a></dd><dd><a hre..." Line: 669 Column: 26 - 29
"... </dt><dd><a hre..." Line: 669 Column: 126 - 129
"...礼</a></dd><dd><a hre..." Line: 669 Column: 230 - 233
"...值</a></dd><dd><a hre..." Line: 669 Column: 329 - 332
"...秘</a></dd><dd><a hre..." Line: 674 Column: 26 - 29
"... </dt><dd><a hre..." Line: 674 Column: 130 - 133
"...告</a></dd><dd><a hre..." Line: 674 Column: 228 - 231
"...护</a></dd><dd><a hre..." Line: 674 Column: 324 - 327
"...告</a></dd><dd><a hre..." Line: 679 Column: 26 - 29
"... </dt><dd><a hre..." Line: 679 Column: 119 - 122
"...明</a></dd><dd><a hre..." Line: 679 Column: 213 - 216
"...普</a></dd><dd><a hre..." Line: 679 Column: 317 - 320
"...服</a></dd><dd><a hre..." Line: 684 Column: 26 - 29
"... </dt><dd><a hre..." Line: 684 Column: 117 - 120
"...知</a></dd><dd><a hre..." Line: 684 Column: 213 - 216
"...告</a></dd><dd><a hre..." Line: 684 Column: 304 - 307
"...告</a></dd><dd><a hre..." Line: 689 Column: 26 - 29
"... </dt><dd><a hre..." Line: 689 Column: 109 - 112
"...告</a></dd><dd><a hre..." Line: 689 Column: 196 - 199
"...告</a></dd><dd><a hre..." Line: 689 Column: 292 - 295
"...告</a></dd><dd><a hre..."

Duplicate attribute “rel”.

Line: 733 Column: - 360
"...et="_blank" rel="nofollow">关于我..."

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

Line: 848 Column: 13 - 19
"... <style> ..."

CSS: “_top”: Parse Error.

Line: 856 Column: 13 - 376
"... <div class="_zz_border" id="r_poup_frame" style="z-index:900;display:none;position: fixed;right: 80px;bottom: 35px;_position: absolute;_top: expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-20-(parseInt(this.currentStyle.marginTop,15)||0)-(parseInt(this.currentStyle.marginBottom,15)||0)));_bottom: auto;"> ..."

Warnings

The “charset” attribute on the “script” element is obsolete.

Line: 10 Column: 1 - 414
"...07263" /> <script type="text/javascript" src="//cdn.51img1.com/??v6/global/js/jquery.js?v=201710193,v6/global/js/global.js?v=201806253,v6/global/js/foui.js?v=201710193,v6/global/js/foui_dialog.js?v=201710193,v6/passport/js/reglogin.js?v=20181119b3,v6/passport/js/aes.js?v=3,v6/passport/js/pad-zeropadding.js?v=3,v6/yzm/51/slide/js/drag.js?v=3,v6/yzm/51/slide/js/newDrag.js?v=3,v6/yzm/51/slide/js/md5.js?v=3" charset="UTF-8"></scri..." Line: 36 Column: 1 - 111
"...12293" /> <script type="text/javascript" src="//cdn.51img1.com/v6/passport/js/loginframe.js?v=201807063" charset="UTF-8"></scri..." Line: 820 Column: 1 - 251
"...v> </div> <script type="text/javascript" src="//cdn.51img1.com/??v6/www/js/www2015.js?v=201801263,v6/my/js/signin.js?v=201712203,v6/point_mall/js/mall_popup.js?v=2016090813,v6/point_mall/js/oceanus.js?v=201801263,v6/home/js/love.js?v=201609053" charset="UTF-8"></scri..." Line: 821 Column: 1 - 225
"...</script> <script type="text/javascript" src="//cdn.51img1.com/??v6/my/js/adsys.js?v=201807093,v6/global/js/head2015.js?v=201708093,v6/game/platform/2015/js/head.js?v=201710303,v6/passport/js/loginframe.js?v=201807063" charset="UTF-8"></scri..." Line: 859 Column: 15 - 130
"... </div><script type="text/javascript" src="//cdn.51img1.com/v6/game/platform/2015/js/popup.js?v=201710193" charset="UTF-8"></scri..."

The “type” attribute is unnecessary for JavaScript resources.

Line: 10 Column: 1 - 414
"...07263" /> <script type="text/javascript" src="//cdn.51img1.com/??v6/global/js/jquery.js?v=201710193,v6/global/js/global.js?v=201806253,v6/global/js/foui.js?v=201710193,v6/global/js/foui_dialog.js?v=201710193,v6/passport/js/reglogin.js?v=20181119b3,v6/passport/js/aes.js?v=3,v6/passport/js/pad-zeropadding.js?v=3,v6/yzm/51/slide/js/drag.js?v=3,v6/yzm/51/slide/js/newDrag.js?v=3,v6/yzm/51/slide/js/md5.js?v=3" charset="UTF-8"></scri..." Line: 11 Column: 1 - 31
"...</script> <script type="text/javascript"> eval(..." Line: 36 Column: 1 - 111
"...12293" /> <script type="text/javascript" src="//cdn.51img1.com/v6/passport/js/loginframe.js?v=201807063" charset="UTF-8"></scri..." Line: 820 Column: 1 - 251
"...v> </div> <script type="text/javascript" src="//cdn.51img1.com/??v6/www/js/www2015.js?v=201801263,v6/my/js/signin.js?v=201712203,v6/point_mall/js/mall_popup.js?v=2016090813,v6/point_mall/js/oceanus.js?v=201801263,v6/home/js/love.js?v=201609053" charset="UTF-8"></scri..." Line: 821 Column: 1 - 225
"...</script> <script type="text/javascript" src="//cdn.51img1.com/??v6/my/js/adsys.js?v=201807093,v6/global/js/head2015.js?v=201708093,v6/game/platform/2015/js/head.js?v=201710303,v6/passport/js/loginframe.js?v=201807063" charset="UTF-8"></scri..." Line: 859 Column: 15 - 130
"... </div><script type="text/javascript" src="//cdn.51img1.com/v6/game/platform/2015/js/popup.js?v=201710193" charset="UTF-8"></scri..."

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

Line: 857 Column: 130 - 212
"...，退下吧 <img src="//cdn.51img1.com/v6/game/platform/2015/images/poup_close.png" border="0"></a></..."

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

Line: 2 Column: 16 - 6
"...TYPE html> <html> <head..."

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51.com 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.

51.com 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.

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51.com desktop page speed rank

51.com Desktop Speed Test Quick Summary

priority - 161Optimize images

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

Optimize the following images to reduce their size by 1.5MiB (63% reduction).

priority - 52Enable 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 510.8KiB (78% reduction).

priority - 15Minify 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 147.1KiB (26% reduction).

priority - 14Eliminate 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:

Optimize CSS Delivery of the following:

priority - 11Leverage 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:

51.com Desktop Resource Breakdown

51.com mobile page speed rank

51.com Mobile Speed Test Quick Summary

priority - 105Optimize images

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

Optimize the following images to reduce their size by 1MiB (50% reduction).

priority - 56Eliminate 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:

Optimize CSS Delivery of the following:

priority - 45Enable 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 435.4KiB (77% reduction).

priority - 16Leverage 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:

priority - 15Minify 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 147.1KiB (26% reduction).

51.com Mobile Resource Breakdown

51.com mobile page usability

51.com Mobile Usability Test Quick Summary

priority - 40Use 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.

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.

priority - 7Size 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.

priority - 3Size 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 1,200 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:

51.com HTML validation

Errors

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Attribute “pos” not allowed on element “a” at this point.

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

Attribute “pos” not allowed on element “img” at this point.

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

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

Duplicate attribute “rel”.

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

CSS: “_top”: Parse Error.

Warnings

The “charset” attribute on the “script” element is obsolete.

The “type” attribute is unnecessary for JavaScript resources.

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

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

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