SEO statements by Danny Sullivan | SEO Declarations

Danny Sullivan is Google's Search Liaison, a key communication role between Google and the search marketing community. Former journalist and founder of Search Engine Land, he brings a unique perspective on search engine optimization. His official statements on X (formerly Twitter) and at events are closely followed by SEO professionals worldwide.

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★ Does Google Personalization Really Affect Your SEO Rankings?

Danny Sullivan indicated on Twitter that personalization of SERPs at Google was primarily based on geolocation and the language used by the user. Other criteria (search history and visited sites, etc....

May 21, 2018 ⚡ Analysis available

★★★ Is HTML validation really unnecessary for your SEO?

Google does not view HTML code validation as critical for SEO. Even if a site's code is invalid, as long as the site displays correctly in browsers, it should not affect its ranking. Minor coding erro...

Mar 15, 2011 ⚡ Analysis available

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