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 ...

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 ...

Guide Your Guide to Understanding Headless CMS A practical look at how headless and composable content platforms help teams work faster and deliver stronger digital experiences at scale Read now Guide ...

When we developed our new GeekWire website in September, one of the critical steps in the process was to run each page template through a few diagnostic tools to make sure that our code was correct.

SEJ STAFF Matt G. Southern Senior News Writer at Search Engine Journal Google’s John Mueller recently stated in a webmaster hangout that W3C validation has no impact on search results. Mueller was ...