What does Google say about SEO?

Gary Illyes also indicated that Penguin primarily considers "the quality of sites linking to a page." This could contradict the prevailing opinion in the SEO world, which has long held that the Penguin filter is designed around the analysis of link a...

Gary Illyes indicated on Twitter that the Penguin 4.0 filter did not use machine learning algorithms. John Mueller, also on Twitter, stated that it did. Paul Haar, Google's ranking manager, concluded with "it's complicated". In short, Google's commun...

John Mueller indicated on Twitter that the quality analysis of a link does not take into account whether the linking site is located in another country or offered in a different language than the destination page of the link: "the quality of links do...

Gary Illyes indicated that the SQT (Search Quality Team), which is responsible for implementing (or not) manual actions, has access to an internal system in which links pointing to a site are labeled: footer link, ignored by Penguin 4.0, disavowed, e...

And finally, Gary Illyes indicated that Google's engineering teams had prepared themselves to counter spam attempts trying to manipulate the recently launched Penguin 4.0 filter. History will tell whether he was right or wrong 🙂

Gary Illyes indicated on Twitter that, while Penguin's purpose is to ignore low-quality links (without giving a negative score to the page receiving them), Panda works differently: it can demote a page (or a site) that offers low-quality content. One...