What does Google say about SEO? /
This category compiles all official Google statements regarding JavaScript and technical aspects of search engine optimization. Modern JavaScript frameworks (React, Angular, Vue.js) and web application architectures (SPA, SSR, CSR) present critical challenges for crawling and indexing. Google's guidance on JavaScript rendering, dynamic DOM manipulation, AJAX implementation, and API calls is essential for ensuring client-side content visibility. SEO professionals will find authoritative positions on implementation best practices, differences between server-side and client-side rendering, and recommendations for optimizing load times while guaranteeing content accessibility to search crawlers. Understanding data formats (JSON, XML) and their SEO implications completes this vital resource. These official declarations help prevent common technical implementation mistakes that can severely impact the search performance of modern websites and JavaScript-powered applications. Access to Google's verified positions on these technical matters enables practitioners to make informed architectural decisions and implement JavaScript solutions that maintain strong organic search visibility while delivering enhanced user experiences.
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Are EMDs Still a Risk for Your SEO in 2024?
Gary Illyes indicated last week that he was on the hunt for "spammy" Exact Match Domain (EMD) names. He also explained that EMDs themselves are not problematic, but rather their combination with other...
Gary Illyes Dec 05, 2016
Can You Really Mix Multiple Structured Data Formats on the Same Page?
A user asked on Twitter whether it was possible to use multiple structured data formats such as Microdata, RDFa, or JSON-LD on the same web page. Gary Illyes replied that it posed no problems, but ano...
Gary Illyes Nov 21, 2016
★★★ Is Hummingbird Really an Anti-Spam Algorithm or Does It Serve an Entirely Different Purpose?
John Mueller indicated on Twitter that Hummingbird, launched in 2013, was not an algorithm specifically dedicated to fighting spam. This is clearly true, since Hummingbird (just like its legitimate su...
John Mueller Nov 21, 2016
★★ Does Domain Registration Length Really Impact SEO Rankings?
John Mueller indicated on Twitter that purchasing (or renewing) a domain name for a longer or shorter period is not considered a relevance criterion by Google. The rumor suggests that the longer you r...
John Mueller Nov 14, 2016
★★★ Should You Still Disavow Links That Have Gone Nofollow or Disappeared?
John Mueller indicated on Twitter that if a link has disappeared or has switched to nofollow, it is no longer necessary to include it in a disavow file. This indeed seems logical....
John Mueller Nov 07, 2016
★★★ Why Does Google Prefer JSON-LD for Structured Data?
John Mueller indicated that the JSON-LD format was Google's favorite for implementing structured data markup. While it certainly accepts all other formats, he recommends JSON-LD....
John Mueller Oct 24, 2016
★★★ Do You Really Need a Dedicated XML Sitemap for Your AMP Pages?
John Mueller indicated on Twitter that using the AMP standard on your site does not require creating a specific XML Sitemap for this format. A "classic" Sitemap is sufficient and Google will find the ...
John Mueller Oct 24, 2016
★★★ How Does Google Label Your Backlinks Internally to Detect Spam?
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:...
Gary Illyes Oct 17, 2016
★★ How Did Google Prepare to Counter Manipulation Attempts of Penguin 4.0?
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 whe...
Gary Illyes Oct 17, 2016
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