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.

Google has officially expanded the Web Guide to the "All" tab. Originally, when it launched as a Search Labs beta, it was under the "Web" tab, but as we saw, Google began expanding it to the "All" tab ...

Google wasn’t around for the advent of the World Wide Web, but it successfully remade the web on its own terms. Today, any website that wants to be findable has to play by Google’s rules, and after ...