| 链接名称 | 反链域名 | 结果 |
|---|---|---|
| information page | http://www.w3.org/QA/2005/01/Validator-IE_WinXP_SP2 | |
| Feed validator, hosted at W3C | https://validator.w3.org/feed/ | |
| W3C CSS Validation Service | http://jigsaw.w3.org/css-validator/ | |
| MobileOK Checker | https://validator.w3.org/mobile/ | |
| W3C Link Checker | https://validator.w3.org/checklink | |
| other validators and tools | http://www.w3.org/QA/Tools/ | |
| non-DTD-based validator | https://validator.w3.org/nu | |
| W3C's Open Source, bringing you free Web quality tools and more | https://www.w3.org/Status | |
| World Wide Web Consortium | https://www.w3.org/ | |
| liability | https://www.w3.org/policies/#disclaimers | |
| trademark | https://www.w3.org/policies/#trademarks | |
| W3C Document License | https://www.w3.org/copyright/document-license/ |
注：有安装类似安全狗软件会影响测试结果。 死链接 - 也称无效链接，即那些不可达到的链接。
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