You may have run across the W3C in your web development and SEO travels. The W3C is the World Wide Web Consortium, and it was founded by the creator of the World Wide Web, Tim Berners-Lee. This web ...

照着菜鸟教程上的例子写的，validate是1.14.0的，js文件和html文件的路径关系如图 ...

A recent tweet from Google’s Gary Illyes called attention to problem of invalid HTML. Google is fine with invalid HTML. Less well known is that there are negative outcomes associated with invalid HTML ...

Some might not know this, but it’s always a good idea for web administrators to check websites for any form of problems in a bid to make sure end users are safe from external harm whenever they visit.