HTML5 form field validation also works with numeric input types and with the “required” specification. Suppose we enhanced the above HTML to add an input field with “required” and another input field ...

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 ...

Most top-ranking websites fail HTML validation. Google explains why perfect code isn’t required, and what matters instead. Many top websites have invalid homepage HTML, yet still rank well.