HTML5 offers form field validation support built into the HTML form input tags that should greatly reduce the need for JavaScript validation code. In this post, I look at some examples of this.

While the W3C validator isn’t the last word (or even the first word) when it comes to HTML5 accuracy (as we have covered before here), it is an interesting comparative metric.

CSE HTML Validator Pro ($69 direct) is an impressive Windows tool for HTML validation, link checking, and more. Validator Pro combines a text editor and integrated Web browser with sophisticated ...

Struts 2's versatile validation framework doesn't end with Java support on the server side. Find out how Struts 2 also helps you perform advanced Ajax validation with ease.

However there are valid reasons why you should consider valid HTML. Related: W3C Validator: What It Is & Why It Matters For SEO 6 Reasons Google Advises to Validate HTML 1. Could affect crawl rate 2.

Google has said many times that poor or invalid HTML validation doesn't impact rankings. Of course, web sites that don't work, a search engine cannot crawl. But if your site works but doesn't ...

The topic of HTML validation has been covered here time and time again - we know Google doesn't downgrade or boost a web site with bad or good HTML validation. We also know that there are cases ...

Most top-ranking websites fail HTML validation. Google explains why perfect code isn’t required, and what matters instead.