In the world of search engine optimization, a perennial argument is whether Google’s ranking factors look for clean code in a Web site. The W3C has developed two popular tools that check Web sites for ...

The free 3 W3C MarkUp Validation Service and 4 W3C CSS Validation Service ensure that your pages meet the exact specifications established by the W3C. The MarkUp Validation Service checks for ...

SelectOracle is a teaching tool and CSS validator created by friends-of-Webmonkey Eric Meyer and Kevin Jacobs. We're not really sure which use is cooler (the validating or the teaching), but taken as ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. This article dives into the happens-before ...

Want to find out how magically terrible your web code is? Just ask the Unicorn. The web's governing body has launched a new validation tool called Unicorn that checks the quality of your website's ...