21ic.com Website Information

Daily Unique Visits: 27,171

Daily Page Views: 163,026

Income Per Day: $326

Estimated Value: $234,720

This website is located in China and is using following IP address 182.92.121.124. See the complete list of popular websites hosted in China.

21ic.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website 21ic.com is using the following name servers:

dns2.hichina.com
dns1.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 21ic.com position in Alexa rank database was 47938 and the lowest rank position was 52786. Current position of 21ic.com in Alexa rank database is 52786.

Desktop speed score of 21ic.com (42/100) is better than the results of 16.45% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of 21ic.com (83/100) is better than the results of 26.4% of other sites and means that the page is mobile-friendly.

Mobile speed score of 21ic.com (53/100) is better than the results of 39.51% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

21ic.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.

21ic.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: 21IC.COM
Registry Domain ID: 17040411_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2024-01-04T07:34:20Z
Creation Date: 2000-01-10T02:41:29Z
Registry Expiry Date: 2026-01-10T02:41:29Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: DNS1.HICHINA.COM
Name Server: DNS2.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-10T21:59:46Z

21ic.com server information

Servers Location

21ic.com desktop page speed rank

Last tested: 2018-02-01

Desktop Speed Bad

42/100

21ic.com Desktop Speed Test Quick Summary

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priority - 49Leverage browser caching

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

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priority - 2Minify JavaScript

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priority - 1Minify HTML

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priority - 0Minify CSS

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21ic.com Desktop Resource Breakdown

Total Resources	164
Number of Hosts	15
Static Resources	125
JavaScript Resources	26
CSS Resources	4

21ic.com mobile page speed rank

Last tested: 2017-05-30

Mobile Speed Bad

53/100

21ic.com Mobile Speed Test Quick Summary

priority - 26Enable compression

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Enable compression for the following resources to reduce their transfer size by 251.1KiB (70% reduction).

Compressing http://m.21ic.com/js/jquery.js could save 187.6KiB (70% reduction).
Compressing http://1.sunrtb.cn/b/ant_flash.js could save 35.1KiB (70% reduction).
Compressing http://m.21ic.com/css/public.css could save 16.1KiB (76% reduction).
Compressing http://m.21ic.com/ could save 5.5KiB (67% reduction).
Compressing http://m.21ic.com/js/pull.js could save 2.7KiB (68% reduction).
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Compressing http://m.21ic.com/js/common.js could save 588B (52% reduction).
Compressing http://m.21ic.com/js/navibar.php could save 535B (50% reduction).

priority - 26Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://21ic.com/
http://www.21ic.com/
http://m.21ic.com/

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://m.21ic.com/js/navibar.php

Optimize CSS Delivery of the following:

http://m.21ic.com/css/public.css

priority - 13Minify 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 127.8KiB (47% reduction).

Minifying http://m.21ic.com/js/jquery.js could save 125KiB (47% reduction).
Minifying http://m.21ic.com/js/pull.js could save 1.4KiB (36% reduction).
Minifying http://m.21ic.com/js/jquery.rotate.js could save 768B (50% reduction).
Minifying http://m.21ic.com/js/js.js could save 757B (34% reduction).

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://m.21ic.com/js/checklogin.js (expiration not specified)
http://m.21ic.com/js/common.js (expiration not specified)
http://m.21ic.com/js/jquery.js (expiration not specified)
http://m.21ic.com/js/jquery.rotate.js (expiration not specified)
http://m.21ic.com/js/js.js (expiration not specified)
http://m.21ic.com/js/navi.js (expiration not specified)
http://m.21ic.com/js/navibar.php (expiration not specified)
http://m.21ic.com/js/pull.js (expiration not specified)
http://1.sunrtb.cn/b/ant_flash.js (60 seconds)
http://pagead2.googlesyndication.com/pagead/js/lidar.js (60 minutes)
https://www.googletagservices.com/dcm/dcmads.js (60 minutes)

priority - 6Optimize images

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

Optimize the following images to reduce their size by 57.1KiB (43% reduction).

Compressing https://s1.2mdn.net/5281214/360x640_JXD-Series_CN.jpg could save 30.8KiB (35% reduction).
Compressing https://s0.2mdn.net/4444862/360x70_low-jitter-oscillators_CN.jpg could save 20.6KiB (67% reduction).
Compressing http://m.21ic.com/images/icon_top.png could save 1.2KiB (51% reduction).
Compressing http://m.21ic.com/images/logo.png could save 1,000B (21% reduction).
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Compressing http://m.21ic.com/images/icon_uc.png could save 886B (48% reduction).
Compressing http://m.21ic.com/images/icon_dots.png could save 884B (71% 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 2.2KiB (11% reduction).

Minifying http://m.21ic.com/css/public.css could save 2.2KiB (11% reduction).

priority - 0Minify 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 1.7KiB (22% reduction).

Minifying http://m.21ic.com/ could save 1.7KiB (22% reduction).

21ic.com Mobile Resource Breakdown

Total Resources	43
Number of Hosts	13
Static Resources	23
JavaScript Resources	19
CSS Resources	1

21ic.com mobile page usability

Last tested: 2017-05-30

Mobile Usability Medium

83/100

21ic.com Mobile Usability Test Quick Summary

priority - 18Size 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 <div id="DfaVisibilityI…ier_3222191668" class="GoogleActiveViewClass"></div> is close to 1 other tap targets.

The tap target <a href="https://adclic…nector-modules"></a> is close to 1 other tap targets.

The tap target <a id="account" href="http://my.21ic.com" class="btn_goucenter"></a> is close to 2 other tap targets.

The tap target <a href="javascript:;void(0)" class="btn_refresh"></a> is close to 1 other tap targets.

The tap target <a href="/searchform" class="btn_gosearch"></a> is close to 3 other tap targets.

The tap target <a id="cat35" href="http://open.21ic.com/m/">公开课</a> is close to 3 other tap targets.

The tap target <a href="/menu.htm"></a> is close to 3 other tap targets.

The tap target <a href="http://bbs.21i…20516-1-1.html" class="news_title">绕高频变压器求助</a> and 6 others are close to other tap targets.

The tap target <a href="http://bbs.21ic.com/" class="news_column">论坛</a> and 8 others are close to other tap targets.

The tap target <div id="DfaVisibilityI…ier_1402900042" class="GoogleActiveViewClass"></div> is close to 2 other tap targets.

The tap target <a href="https://adclic…er-oscillators"></a> is close to 2 other tap targets.

The tap target <a href="http://my.21ic.com/logging.php">登录</a> and 1 others are close to other tap targets.

The tap target <a href="http://www.21ic.com" class="last_footerlink">电脑版</a> is close to 1 other tap targets.

21ic.com HTML validation

Errors

Legacy encoding “gbk” used. Documents must use UTF-8.

Line: Column: -
"......"

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

Bad value “gb2312” for attribute “lang” on element “html”: The language subtag “gb2312” is not a valid language subtag.

Line: 2 Column: 122 - 57
"...onal.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="gb2312"> <head..."

Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.

Line: 5 Column: 1 - 70
"...站</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <meta..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 6 Column: 1 - 60
"...b2312" /> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7"/> <link..."

CSS: “_top”: Parse Error.

Line: 117 Column: - 57
"...ment.scrollTop));} .couplet_ad..."

The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 235 Column: 1 - 142
"...50X450--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="950" height="450" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=357"></ifram..." Line: 256 Column: 1 - 141
"...68X60 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=339"></ifram..." Line: 260 Column: 1 - 141
"...468X60--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=340"></ifram..." Line: 265 Column: 1 - 141
"...236X60--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="236" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=510"></ifram..." Line: 272 Column: 1 - 141
"...58X64 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="758" height="64" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=341"></ifram..." Line: 824 Column: 1 - 141
"...950X60--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="950" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=342"></ifram..." Line: 882 Column: 1 - 141
"...468X60--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=345"></ifram..." Line: 916 Column: 1 - 141
"...68X60 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=346"></ifram..." Line: 936 Column: 1 - 141
"...468X60--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=347"></ifram..." Line: 992 Column: 1 - 141
"...68X60 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="468" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=348"></ifram..." Line: 1002 Column: 1 - 142
"...0X150 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="210" height="150" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=343"><..." Line: 1006 Column: 1 - 142
"...10X245--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="210" height="245" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=358"></ifram..." Line: 1010 Column: 1 - 142
"...0X150 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="210" height="150" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=344"></ifram..." Line: 1071 Column: 1 - 141
"...50X60 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="950" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=352"></ifram..." Line: 1075 Column: 9 - 149
"...> <iframe marginheight="0" marginwidth="0" frameborder="0" width="210" height="60" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=353"></ifram..." Line: 1237 Column: 5 - 146
"...0 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="360" height="250" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=370"></ifram..." Line: 1507 Column: 1 - 142
"...38X200--> <iframe marginheight="0" marginwidth="0" frameborder="0" width="238" height="200" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=408"></ifram..." Line: 1706 Column: 1 - 142
"...6X130 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="386" height="130" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=363"></ifram..." Line: 1968 Column: 1 - 142
"...6X130 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="386" height="130" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=364"></ifram..." Line: 2136 Column: 1 - 142
"...6X130 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="386" height="130" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=366"></ifram..." Line: 2250 Column: 1 - 142
"...6X130 --> <iframe marginheight="0" marginwidth="0" frameborder="0" width="386" height="130" scrolling="no" src="http://21ic.sunrtb.com/s?m=21ic&c=365"></ifram..."

The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

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

Line: 290 Column: 42 - 127
"...parrow1" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 318 Column: 146 - 324
"...-ESPRUIN"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201901/9d3f63625ca8b1928716d97160b1b839.jpg"/></a></..." Line: 321 Column: 129 - 307
"...rm一战？英特尔"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201812/568e3a078af6fd3e8c91238018ed16d8.jpg"/></a></..." Line: 324 Column: 144 - 322
"...Vidor400"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201812/a1aaa89a1c3ee2bb5420a84e6c740ca8.jpg"/></a></..." Line: 336 Column: 113 - 292
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201902/92433dbb1650527a20b025d1b5c3c49e.jpg"/></a></..." Line: 342 Column: 113 - 292
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201901/94e5bf927c97304250517c79ed2d4241.jpg"/></a></..." Line: 348 Column: 113 - 292
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201901/8cac72bb9f8bb4376a2991ae79aef01a.jpg"/></a></..." Line: 372 Column: 42 - 127
"...parrow2" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 424 Column: 114 - 293
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://image.21ic.com/d/file/201901/f85f12e543f620a7b4c065d1ed125fa2.jpg"/></a></..." Line: 430 Column: 114 - 265
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://www.21ic.com/e/data/images/notimg.gif"/></a></..." Line: 452 Column: 42 - 127
"...parrow3" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 474 Column: 86 - 153
"...艾睿技术服务社区"><img src="http://img.21ic.com/2015nav/images/bbs14_arrow_logo.jpg"/></a></..." Line: 475 Column: 94 - 158
"...="芯圣MCU "><img src="http://img.21ic.com/2015nav/images/bbs13_xs_logo.jpg"/></a></..." Line: 476 Column: 98 - 166
"...vota MCU"><img src="http://img.21ic.com/2015nav/images/bbs12_navota_logo.jpg"/></a></..." Line: 477 Column: 101 - 172
"...N MC技术论坛"><img src="http://misc.21ic.com/homepage2016/images/bbslogo_chipon.jpg"/></a></..." Line: 478 Column: 100 - 164
"...ss创新技术论坛"><img src="http://img.21ic.com/2015nav/images/bbs01_cy_logo.jpg"/></a></..." Line: 480 Column: 107 - 171
"...GD32 MCU"><img src="http://img.21ic.com/2015nav/images/bbs03_gi_logo.jpg"/></a></..." Line: 481 Column: 103 - 167
"...(笙泉)单片机 "><img src="http://img.21ic.com/2015nav/images/bbs04_me_logo.jpg"/></a></..." Line: 482 Column: 97 - 161
"...唐MCU技术论坛"><img src="http://img.21ic.com/2015nav/images/bbs06_mu_logo.jpg"/></a></..." Line: 483 Column: 93 - 157
"...="ST MCU"><img src="http://img.21ic.com/2015nav/images/bbs07_st_logo.jpg"/></a></..." Line: 484 Column: 82 - 121
"...半导体MCU论坛"><img src="/images/bbs06_hdsc_logo.jpg"/></a></..." Line: 485 Column: 95 - 157
"..."赛元MCU平台"><img src="http://img.21ic.com/2015nav/images/bbslogo_soc.jpg"/></a></..." Line: 486 Column: 98 - 169
"...rochip论坛"><img src="http://img.21ic.com/2015nav/images/bbs19_microchip_logo.jpg"/></a></..." Line: 487 Column: 81 - 146
"...德州仪器（TI）"><img src="http://img.21ic.com/2015nav/images//bbs08_ti_logo.jpg"/></a></..." Line: 489 Column: 93 - 157
"...="中颖MCU "><img src="http://img.21ic.com/2015nav/images/bbs10_zh_logo.jpg"/>..." Line: 503 Column: 56 - 142
"...="_blank"><img src="http://img.21ic.com/2015nav/images/bbs_button.jpg" width="110" height="29" /></a> ..." Line: 504 Column: 64 - 155
"...="_blank"><img src="http://img.21ic.com/2015nav/images/bbs_button_boke.jpg" width="110" height="29" /></a> ..." Line: 511 Column: 24 - 102
"...bbs_iocn"><img src="http://img.21ic.com/2015nav/images/bbs.gif" width="19" height="17" /></i></..." Line: 513 Column: 42 - 127
"...parrow4" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 517 Column: 102 - 273
".../id/1398"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://open.21ic.com/public/uploads/cover/201506/5583ad454c259.jpg"></a></..." Line: 517 Column: 493 - 664
".../id/5464"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://open.21ic.com/public/uploads/cover/201611/582d581a52699.jpg"></a></..." Line: 517 Column: 877 - 1048
".../id/5338"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://open.21ic.com/public/uploads/cover/201609/57d75be4ee23d.jpg"></a></..." Line: 517 Column: 1270 - 1441
".../id/7136"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://open.21ic.com/public/uploads/cover/201705/5927932639b86.jpg"></a></..." Line: 517 Column: 1653 - 1824
".../id/1980"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://open.21ic.com/public/uploads/cover/201609/57ea0cff792d2.jpg"></a></..." Line: 522 Column: 234 - 396
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://seminar.21ic.com/corp_logo/20081171654625451.jpg" /></a></..." Line: 522 Column: 728 - 890
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://seminar.21ic.com/corp_logo/20081171654625451.jpg" /></a></..." Line: 522 Column: 1210 - 1372
"...="_blank"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://seminar.21ic.com/corp_logo/20190110144758314.jpg" /></a></..." Line: 527 Column: 93 - 279
"...deo/3049"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://edu.21ic.com/uploads/titlepic/8caf82215d44d1fcc3d9585387a568aea7d1d482.jpg"></a></..." Line: 527 Column: 474 - 660
"...deo/3045"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://edu.21ic.com/uploads/titlepic/b9d450525cc137e00c8af887d9aa07f6db947eb2.jpg"></a></..." Line: 527 Column: 869 - 1052
"...deo/3039"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading280_180.gif" data-original="http://edu.21ic.com/uploads/cover/5414372e6140cb3614ed796fc767a0fefc078d86.png"></a></..." Line: 541 Column: 42 - 127
"...parrow5" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 549 Column: 72 - 161
"...="_blank"><img class="lazy-drop" data-original="http://img.21ic.com/2015nav/images/project01.jpg" /></a>..." Line: 550 Column: 66 - 155
"...="_blank"><img class="lazy-drop" data-original="http://img.21ic.com/2015nav/images/project02.jpg" /></a> ..." Line: 580 Column: 42 - 127
"...parrow9" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 588 Column: 56 - 114
"...="_blank"><img src="http://www.21ic.com/images/zhaopin_570x90.jpg" /></a> ..." Line: 609 Column: 42 - 127
"...parrow6" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> <..." Line: 640 Column: 98 - 187
"...atasheet"><img class="lazy-drop" data-original="http://img.21ic.com/2015nav/images/data_logo.jpg" /></a> ..." Line: 692 Column: 42 - 127
"...parrow7" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 704 Column: 57 - 89
"...="_blank"><img src="/images/PWR200x80.jpg"></A></..." Line: 705 Column: 64 - 96
"...="_blank"><img src="/images/edu200x80.jpg"></A></..." Line: 712 Column: 28 - 83
"...vit_iocn"><img src="http://img.21ic.com/2015nav/images/huod.gif" ></i></..." Line: 714 Column: 42 - 127
"...parrow8" ><img src="http://img.21ic.com/2015nav/images/nav_uparrow.gif" width="18" height="9" /></i> ..." Line: 718 Column: 99 - 277
"...止方便，还很安全"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201902/446eadede388156f765f5eb616414d75.jpg"/></a> ..." Line: 721 Column: 87 - 178
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 723 Column: 95 - 273
"...暴“TI考卷”！"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201902/5bc2f5025036910f2de56de082aeb864.jpg"/></a> ..." Line: 726 Column: 93 - 184
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 728 Column: 92 - 270
"...站资源免积分下载"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201901/cb5a73f9bde241833f7c7dbcc4a10576.jpg"/></a> ..." Line: 731 Column: 82 - 173
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 733 Column: 85 - 263
"...季，新年大回馈！"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201901/2a2639cd78705b54b51f8bf4d68a7e39.jpg"/></a> ..." Line: 736 Column: 75 - 166
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 738 Column: 100 - 278
"...请您一“战”到底"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201812/6866ea22f0d2df311b91862467278c2d.jpg"/></a> ..." Line: 741 Column: 78 - 169
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 743 Column: 103 - 281
"...答题恋曲2018"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201812/262cb3642c66775e7ee8cc117d9f70b9.jpg"/></a> ..." Line: 746 Column: 99 - 190
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 748 Column: 116 - 294
"...术帖年终评选啦！"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201811/9f23c80291ec08f9d8d15d82eb1c4568.jpg"/></a> ..." Line: 751 Column: 93 - 184
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 753 Column: 99 - 277
"...焕新你的电源设计"><img class="lazy-drop" src="http://misc.21ic.com/homepage2016/images/loading210_120.gif" data-original="http://image.21ic.com/d/file/201811/73de58afae3a0318dd3693ee9c117d4f.jpg"/></a> ..." Line: 756 Column: 89 - 180
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 1659 Column: 115 - 186
"...nofollow"><img width="45" height="11" border="0" src="/microchip/images/more.jpg"></a>Mi..." Line: 2387 Column: 10 - 112
"... <img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/pay_r1.jpg" /> ..." Line: 2392 Column: 9 - 111
"... <img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/pay_r2.jpg" /> ..." Line: 2568 Column: 4 - 93
"...1号</A> <img src="http://misc.21ic.com/pub/topbar/images/ghs.png" style="vertical-align: middle;"> <a..."

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

Line: 338 Column: 3 - 23
"...right"> <p class="right_tit"><a hre..." Line: 339 Column: 3 - 23
".../a></p> <p class="right_con">最近，美国为..." Line: 344 Column: 3 - 23
"...right"> <p class="right_tit"><a hre..." Line: 345 Column: 3 - 23
".../a></p> <p class="right_con">1月10日，..." Line: 350 Column: 3 - 23
"...right"> <p class="right_tit"><a hre..." Line: 351 Column: 3 - 23
".../a></p> <p class="right_con">最近，频频上..." Line: 426 Column: 3 - 23
"...right"> <p class="right_tit"><a hre..." Line: 427 Column: 3 - 23
".../a></p> <p class="right_con">此次发布会B..." Line: 432 Column: 3 - 23
"...right"> <p class="right_tit"><a hre..." Line: 433 Column: 3 - 23
".../a></p> <p class="right_con">最近，致力于..." Line: 522 Column: 427 - 429
"...ss="font"><p>演讲人：泮跃..." Line: 522 Column: 441 - 443
"...讲人：泮跃俊</p><p>时间：201..." Line: 522 Column: 921 - 923
"...ss="font"><p>演讲人：赵俊..." Line: 522 Column: 935 - 937
"...讲人：赵俊亚</p><p>时间：201..." Line: 522 Column: 1403 - 1405
"...ss="font"><p>演讲人：张一..." Line: 522 Column: 1417 - 1419
"...讲人：张一峰</p><p>时间：201..."

Duplicate ID “power_nav”.

Line: 370 Column: 25 - 99
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">技术</a>..." Line: 450 Column: 25 - 118
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="http://bbs.21ic.com/" target="_blank">论坛</a>..." Line: 510 Column: 25 - 94
"..._downone"><a id="power_nav" class="navone bbs_toggle" href="javascript:void(0)">课程 ..." Line: 539 Column: 25 - 121
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="http://project.21ic.com/" target="_blank">外包</a>..." Line: 578 Column: 25 - 117
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="http://job.21ic.com/" target="_blank">招聘</a>..." Line: 607 Column: 25 - 99
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">资源</a>..." Line: 690 Column: 25 - 111
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="http://www.21ic.com/#microsite">厂商</a>..." Line: 711 Column: 25 - 130
"..._downone"><a id="power_nav" class="activit_toggle navone " href="http://bbs.21ic.com/huodonggl.php" target="_blank">活动 ..."

The “font” element is obsolete. Use CSS instead.

Line: 545 Column: 201 - 219
"...><span>预算：<font class="blue">￥25000..." Line: 545 Column: 399 - 417
"...><span>预算：<font class="blue">￥16000..." Line: 545 Column: 610 - 628
"...><span>预算：<font class="blue">小于￥100..." Line: 886 Column: 143 - 148
"...</div>-->芯<font>闻号</fo..." Line: 1678 Column: 63 - 80
"...blank">更多 <font class="red">></fon..." Line: 1907 Column: 48 - 65
"...blank">更多 <font class="red">></..." Line: 2059 Column: 54 - 71
"...blank">更多 <font class="red">></..." Line: 2212 Column: 65 - 82
"...blank">更多 <font class="red">></..." Line: 2401 Column: 65 - 82
"...blank">更多 <font class="red">></fon..."

Element “img” is missing required attribute “src”.

Line: 549 Column: 72 - 161
"...="_blank"><img class="lazy-drop" data-original="http://img.21ic.com/2015nav/images/project01.jpg" /></a>..." Line: 550 Column: 66 - 155
"...="_blank"><img class="lazy-drop" data-original="http://img.21ic.com/2015nav/images/project02.jpg" /></a> ..." Line: 721 Column: 87 - 178
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 726 Column: 93 - 184
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 731 Column: 82 - 173
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 736 Column: 75 - 166
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 741 Column: 78 - 169
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 746 Column: 99 - 190
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 751 Column: 93 - 184
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 756 Column: 89 - 180
"...="_blank"><img class="lazy-drop" data-original="/2015nav/images/huodong.jpg" width="98" height="24" /></a></..." Line: 940 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 1013 Column: 68 - 183
"...="_blank"><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/more.jpg"border="0" alt=""></a></..." Line: 1023 Column: 50 - 178
"...="_blank"><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/editor_epc_img.jpg" border="0" alt="" /></a></..." Line: 1024 Column: 50 - 178
"...="_blank"><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/editor_epc_btn.jpg" border="0" alt="" /></a></..." Line: 1032 Column: 40 - 163
"...课程分类 <img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/open_fenlei.jpg" border="0" alt=""></a> ..." Line: 1661 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1662 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1663 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1664 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1665 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1666 Column: 197 - 287
"...ollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></spa..." Line: 1667 Column: 293 - 383
"...nofollow"><IMG class="lazy-drop" data-original="/images/homenew/microship_btn.jpg" BORDER="0" ALT=""></a></..." Line: 1711 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 1973 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 2141 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 2255 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..."

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

Line: 638 Column: 8 - 33
"..."> <div id="icsearch_banner"> ..." Line: 666 Column: 6 - 29
"...div> <div class="hot_search"> ..." Line: 677 Column: 6 - 25
"...div> <div class="jisuan"> ..."

Element “h2” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 700 Column: 7 - 29
"...ul> <h2 class="list_title">推荐课程</..."

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

Line: 787 Column: 1 - 62
"...ct> </li> <input type="text" name="type" value="" style="display:none;"> <inpu..." Line: 788 Column: 1 - 62
"...y:none;"> <input type="text" name="type" value="" style="display:none;"> <li c..." Line: 2473 Column: 3 - 64
"... </li> <input name="type" value="" style="display:none;" type="text"> <in..." Line: 2474 Column: 3 - 64
"..."text"> <input name="type" value="" style="display:none;" type="text"> <li..."

Attribute “value” not allowed on element “input” at this point.

Line: 790 Column: 17 - 156
"...ass="btn"><input type="image" src="http://misc.21ic.com/homepage2016/images/search_btn.jpg" value="" onclick="javascript: return searchFormSubmit(1)"></li> ..." Line: 2476 Column: 19 - 158
"...ass="btn"><input src="http://misc.21ic.com/homepage2016/images/search_btn.jpg" value="" onclick="javascript: return searchFormSubmit(2)" type="image"></li> ..."

Element “input” is missing required attribute “alt”.

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

Line: 796 Column: 3 - 20
"...ubnav"> <span class="hot">热门：</s..."

No space between attributes.

Line: 885 Column: - 144
"...mages/more.jpg"border="0" alt=..." Line: 927 Column: - 116
"...mages/more.jpg"border="0" alt=..." Line: 1013 Column: - 166
"...mages/more.jpg"border="0" alt=..." Line: 1144 Column: - 83
"...<img border="0"src="http://mis..."

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

Line: 888 Column: 8 - 11
"...l> <ul><li><a..." Line: 888 Column: 329 - 332
"...</li></ul><ul><li><a..." Line: 888 Column: 666 - 669
"...</li></ul><ul><li><a..."

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

Line: 1033 Column: 7 - 11
".../a> <div> ..."

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

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

Line: 1088 Column: 3 - 82
"..._logo"> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="js_photo"> <..." Line: 1096 Column: 1 - 63
"...='top'> <table width="1000" border="0" cellpadding="0" cellspacing="0"> ..." Line: 1305 Column: 8 - 57
"..."> <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1331 Column: 10 - 59
"... <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1513 Column: 8 - 57
"..."> <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1539 Column: 10 - 59
"... <table cellspacing="0" cellpadding="0" border="0"> ..."

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

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

Line: 1088 Column: 3 - 82
"..._logo"> <table width="100%" border="0" cellspacing="0" cellpadding="0" class="js_photo"> <..." Line: 1092 Column: 1 - 63
"...的高度和宽度--> <table align='center' cellpadding='0' cellspace='0' border='0'> <tr> ..." Line: 1096 Column: 1 - 63
"...='top'> <table width="1000" border="0" cellpadding="0" cellspacing="0"> ..." Line: 1102 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1108 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1114 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1126 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1132 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1136 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1142 Column: 13 - 30
"... <td><table border="0"> ..." Line: 1148 Column: 13 - 30
"... <td><table border="0"> ..." Line: 1154 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1160 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1166 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1172 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1178 Column: 7 - 24
"...td> <td><table border="0"> ..." Line: 1305 Column: 8 - 57
"..."> <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1331 Column: 10 - 59
"... <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1513 Column: 8 - 57
"..."> <table cellspacing="0" cellpadding="0" border="0"> ..." Line: 1539 Column: 10 - 59
"... <table cellspacing="0" cellpadding="0" border="0"> ..."

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Line: 1091 Column: 1 - 80
"... <td> <div align='center' id='demo' style='overflow:hidden;height:50px;width:1180px;'><!--滚动..."

Attribute “cellspace” not allowed on element “table” at this point.

Line: 1092 Column: 1 - 63
"...的高度和宽度--> <table align='center' cellpadding='0' cellspace='0' border='0'> <tr> ..."

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

Line: 1092 Column: 1 - 63
"...的高度和宽度--> <table align='center' cellpadding='0' cellspace='0' border='0'> <tr> ..."

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

Line: 1094 Column: 5 - 29
"...='0'> <tr> <td id='demo1' valign='top'> <ta..." Line: 1189 Column: 7 - 25
"...e> </td> <td id=demo2 valign=top></td> ..." Line: 1310 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1321 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1336 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1347 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1518 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1529 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1544 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1555 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..."

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

Line: 1098 Column: 11 - 35
"... <tr> <td height="3" colspan="9"></td> ..." Line: 1321 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1347 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1529 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1555 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..."

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

Line: 1101 Column: 11 - 21
"... <tr> <td width="7"></td> ..." Line: 1107 Column: 22 - 21
"...able></td> <td width="7"></td> ..." Line: 1113 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1125 Column: 26 - 22
"...></td> --> <td width="7"></td> ..." Line: 1131 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1135 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1141 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1147 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1153 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1159 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1165 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1171 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1177 Column: - 22
"...able></td> <td width="7"></td> ..." Line: 1183 Column: - 22
"...able></td> <td width="7"></td> ..."

Stray end tag “tr”.

Line: 1185 Column: 12 - 11
"... </tr> </tr> ..."

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

Line: 1310 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1321 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1336 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1347 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1518 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1529 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..." Line: 1544 Column: 27 - 54
"... <tr> <td align="left" valign="top"> ..." Line: 1555 Column: 27 - 66
"... <tr> <td align="left" valign="top" height="90"> ..."

Element “h3” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 1484 Column: 12 - 15
"... <h3><a hre..." Line: 1495 Column: 11 - 14
"... <h3><a hre..."

No “p” element in scope but a “p” end tag seen.

Line: 2156 Column: 283 - 286
".../span></p></p></li><..." Line: 2156 Column: 530 - 533
".../span></p></p></li><..." Line: 2156 Column: 807 - 810
".../span></p></p></li><..." Line: 2156 Column: 1086 - 1089
".../span></p></p></li><..." Line: 2156 Column: 1327 - 1330
".../span></p></p></li><..." Line: 2156 Column: 1567 - 1570
".../span></p></p></li> ..."

Stray end tag “a”.

Line: 2372 Column: 77 - 80
"...span>gaon2</a></li> ..." Line: 2372 Column: 143 - 146
"...>hbzjt2011</a></li> ..." Line: 2372 Column: 210 - 213
"...eyesee2008</a></li> ..." Line: 2372 Column: 274 - 277
"...an>anvy178</a></li> ..." Line: 2372 Column: 338 - 341
"...an>LED2013</a></li> ..." Line: 2372 Column: 400 - 403
"...span>守护无名指</a></li> ..." Line: 2372 Column: 468 - 471
"...hangmangui</a></li> ..." Line: 2372 Column: 528 - 531
"...</span>z00</a></li> ..." Line: 2372 Column: 594 - 597
"...>xieyuanfu</a></li> ..." Line: 2372 Column: 658 - 661
"...pan>wulana</a></li> ..." Line: 2376 Column: 100 - 103
"...an>21ic小管家</a></li> ..." Line: 2376 Column: 163 - 166
"...span>21小跑堂</a></li> ..." Line: 2376 Column: 228 - 231
"...an>21ic小喇叭</a></li> ..." Line: 2376 Column: 292 - 295
"...an>21ic大掌柜</a></li> ..." Line: 2376 Column: 357 - 360
"...n>芯圣电子官方QQ</a></li> ..." Line: 2376 Column: 420 - 423
"...pan>21ic下载</a></li> ..." Line: 2376 Column: 484 - 487
"...an>mornsun</a></li> ..." Line: 2376 Column: 547 - 550
"...an>21ic小能手</a></li> ..." Line: 2376 Column: 611 - 614
"...n>xlhtracy</a></li> ..." Line: 2376 Column: 677 - 680
"...>PowerAnts</a></li> ..."

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

Line: 2387 Column: 10 - 112
"... <img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/pay_r1.jpg" /> ..." Line: 2392 Column: 9 - 111
"... <img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/pay_r2.jpg" /> ..."

Element “dl” is missing a required instance of one or more of the following child elements: “dd”.

Line: 2541 Column: 29 - 33
"... </dl> ..."

End tag for “body” seen, but there were unclosed elements.

Line: 2612 Column: 1 - 7
"...</script> </body> </htm..."

Unclosed element “div”.

Line: 2588 Column: 1 - 26
".../script> <div style="display:none"> <scri..."

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 13 Column: 1 - 88
"...in.css"/> <script src="http://misc.21ic.com/homepage2016/js/uaredirect.js" type="text/javascript"></scri..." Line: 14 Column: 1 - 31
"...</script> <script type="text/javascript"> /..." Line: 50 Column: 1 - 92
"...script> <script src="http://misc.21ic.com/pub/topbar/js/jquery-1.7.2.min.js" type="text/javascript"></scri..." Line: 209 Column: 1 - 31
"...广告结束 --> <script type="text/javascript"> var i..." Line: 237 Column: 1 - 31
"...e> </div> <script type="text/javascript">RoadAd..." Line: 248 Column: 1 - 86
"...esheet"/> <script type="text/javascript" src="http://misc.21ic.com/2015nav/js/slide-nav.min.js"></scri..." Line: 249 Column: 1 - 81
"...</script> <script type="text/javascript" src="http://misc.21ic.com/2015nav/js/lrtk.min.js"></scri..." Line: 646 Column: 9 - 39
"...> <script type="text/javascript"> ..." Line: 695 Column: 17 - 98
"... <script src="http://misc.21ic.com/pub/topbar/js/cs_gbk.js" type="text/javascript"></scri..." Line: 815 Column: 1 - 32
"...v> </div> <script type="text/javascript"> $(fun..." Line: 828 Column: 5 - 96
"...ews"> <script type="text/javascript" src="http://misc.21ic.com/homepage2016/js/bigpicroll.min.js"></scri..." Line: 868 Column: 7 - 37
"...iv> <script type="text/javascript"> ..." Line: 889 Column: 26 - 56
"... <script type="text/javascript"> ..." Line: 1052 Column: 4 - 98
"...cont"> <script type="text/javascript" src="http://misc.21ic.com/homepage2016/js/slides.min.jquery.js"></scri..." Line: 1059 Column: 4 - 34
"...</div> <script type="text/javascript"> $..." Line: 1933 Column: 12 - 42
"... <script type="text/javascript"> $('..." Line: 2108 Column: 12 - 42
"... <script type="text/javascript"> ..." Line: 2224 Column: 12 - 42
"... <script type="text/javascript"> $('..." Line: 2540 Column: 33 - 114
"... <script src="http://misc.21ic.com/pub/topbar/js/cs_gbk.js" type="text/javascript"></scri..." Line: 2578 Column: 1 - 31
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"...</script> <script type="text/javascript"> $(fun..."

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 122 Column: 1 - 30
"... </style> <script language="javascript"> funct..." Line: 132 Column: 1 - 30
"...script> <script language="javascript"> funct..." Line: 1865 Column: 6 - 35
".../ul> <script language="JavaScript"> ..."

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

Line: 269 Column: 37 - 94
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"...nofollow"><img width="45" height="11" border="0" src="/microchip/images/more.jpg"></a>Mi..." Line: 1661 Column: 197 - 287
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"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt="" src="http://misc.21ic.com/homepage2016/images/title_right.jpg" style="display: inline;"></span..." Line: 1973 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 2141 Column: 19 - 142
"... <span><img class="lazy img-responsive" data-original="http://misc.21ic.com/homepage2016/images/title_right.jpg" border="0" alt=""></span..." Line: 2255 Column: 19 - 142
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The first occurrence of ID “power_nav” was here.

Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..." Line: 288 Column: 25 - 100
"..._downone"><a id="power_nav" class="navone dropdown_toggle" href="javascript:void(0)">阅读</a>..."

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Line: 770 Column: - 104
"...tle="2018年度最秀--对我帮助最大的TI E2E技术..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 1080 Column: 1 - 35
"...crosite"> <a name="microsite" id="microsite"></a> ..."

A table row was 27 columns wide and exceeded the column count established by the first row (9).

Line: 1184 Column: 28 - 11
"...="7"></td> </tr> ..."

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21ic.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.

21ic.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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priority - 70Optimize images

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

Optimize the following images to reduce their size by 684.6KiB (55% reduction).

priority - 49Leverage 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 - 20Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

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

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Remove render-blocking JavaScript:

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priority - 2Minify JavaScript

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Minify JavaScript for the following resources to reduce their size by 16.3KiB (43% 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 5.3KiB (13% reduction).

priority - 0Minify CSS

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Minify CSS for the following resources to reduce their size by 3.4KiB (23% reduction).

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priority - 26Enable compression

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Enable compression for the following resources to reduce their transfer size by 251.1KiB (70% reduction).

priority - 26Avoid landing page redirects

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priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 13Minify 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 127.8KiB (47% reduction).

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:

priority - 6Optimize images

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

Optimize the following images to reduce their size by 57.1KiB (43% 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 2.2KiB (11% reduction).

priority - 0Minify HTML

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Minify HTML for the following resources to reduce their size by 1.7KiB (22% reduction).

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priority - 18Size 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.

21ic.com HTML validation

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Legacy encoding “gbk” used. Documents must use UTF-8.

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “gb2312” for attribute “lang” on element “html”: The language subtag “gb2312” is not a valid language subtag.

Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “charset=” must be followed by “utf-8”.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

CSS: “_top”: Parse Error.

The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

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

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

Duplicate ID “power_nav”.