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.
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions
★★★ Should you really give up dynamic rendering for SSR?
Google stopped recommending dynamic rendering following the launch of Evergreen Googlebot in May 2019. Although it is not deprecated, it is more complex than expected. Google now recommends investing ...
Martin Splitt Mar 25, 2021
★★ Should you canonicalize XML sitemap files to prevent duplication?
It is not necessary to canonicalize XML sitemap files themselves, but if file variants are unnecessary, controlling their access via the robots.txt file may be wise....
Google Mar 25, 2021
★★★ Is it true that JavaScript is fully compatible with modern SEO?
JavaScript SEO is not a novelty but an aspect of technical SEO. It simply acknowledges that many sites use JavaScript to generate content. The claim that JavaScript and SEO are incompatible has been f...
Martin Splitt Mar 24, 2021
★★★ Does Google really render ALL of your JavaScript pages?
Almost all pages are rendered by Google, regardless of the difference between the initial HTML and the rendered HTML. The heuristics for avoiding rendering are very limited and concern very few pages....
Martin Splitt Mar 24, 2021
★★ Does the JSON hydration at the bottom of the page harm SEO?
Having a large JSON string at the bottom of the page for hydration is not a problem for Google. Creating a different code path for bots (by removing this JSON) introduces fragility without real benefi...
Martin Splitt Mar 24, 2021
★★★ Does Googlebot really click on the JavaScript buttons and links on your site?
Googlebot does not click on any elements on the page (buttons, onclick links, etc.). Clicking is too costly in terms of CPU power for the Web Rendering Service. URLs must be discovered via standard hr...
Martin Splitt Mar 24, 2021
★★★ How does switching to Evergreen Chrome revolutionize Google's page rendering?
The transition from Chrome 41 to an evergreen Chrome in the Web Rendering Service has been a major factor in improvement. Google has developed a sustainable strategy to keep pace with Chrome updates....
Martin Splitt Mar 24, 2021
★★★ Is Server-Side Rendering really essential for SEO in 2025?
Server-Side Rendering (SSR) is recommended by Google. It makes sites faster for users and more robust for crawling. The best time to implement it is at the beginning of a new project, as retrofitting ...
Martin Splitt Mar 24, 2021
★★★ Why does Google never click on your Load More buttons, and how can you avoid this?
Google does not click on buttons. For pagination, it is better to use static links (with href) to page 2, page 3, etc. JavaScript can then override the behavior to load content without page reloading ...
Martin Splitt Mar 24, 2021
★★ Has Googlebot really become foolproof when it comes to JavaScript?
Google has made significant progress in JavaScript rendering since 2018. The evergreen Googlebot functions very well, and issues related to JavaScript are less frequent. Most of the problems reported ...
Martin Splitt Mar 24, 2021
★★ Can Google's Merchant Content API really index your products in just minutes?
With the Content API, you can insert, update, and delete selected products individually or in small batches. Your updates can go live within minutes instead of waiting for the next complete processing...
Alan Kent Mar 23, 2021
★★★ Which Merchant Center feeding method truly impacts your product visibility?
There are three approaches to provide your product data to Google Merchant Center: by crawling your website, by periodically supplying a full feed of all your products, or by using an API to update in...
Alan Kent Mar 23, 2021
★★★ Are structured data really essential for Google to understand your products?
Using structured data is a way to ensure that Google correctly understands all the product details you provide on a webpage. JSON-LD is a common method for encoding this data....
Alan Kent Mar 23, 2021
★★★ Why Do You Have to Wait 28 Days to See Your Core Web Vitals Scores?
John Mueller explained in a webmaster hangout that Google tools used to "score" Core Web Vitals metrics (LCP, FID, CLS) need, for any given web page, to collect data (from the Chrome User Experience R...
John Mueller Mar 22, 2021
★★★ Is it really necessary to ignore toxic links since Google filters them out automatically?
For most sites, there's no need to worry about toxic links. Google's systems automatically ignore links deemed harmful. Individual spam links do not count against your site. The disavow file is still ...
John Mueller Mar 19, 2021
★★★ How can you avoid doorway page penalties when managing multiple sites with duplicate content?
For multiple sites with the same content (e.g., commercial sites), use rel=canonical to point to a central indexed version. This avoids spam issues (doorway pages), concentrates strength on a single s...
John Mueller Mar 19, 2021
★★★ Do Domain Authority and Alexa Rank Really Influence Your Google Ranking?
Google does not use Alexa Rank for ranking. Similarly, Domain Authority is a metric created by a third party (Moz) and has no effect on Google SEO. These external metrics are not taken into account by...
John Mueller Mar 19, 2021
★★ Why Do Disavowed Links Still Appear in Search Console?
When you submit links in the disavow file, they continue to appear in the Search Console link report. The disavow prevents these links from affecting your site, but does not remove them from the repor...
John Mueller Mar 19, 2021
★★★ How does Google automatically detect key moments in your SEO videos?
When Google can access the video content, it can automatically identify key moments in your video so that users can browse them like chapters in a book....
Danielle Marshak Mar 17, 2021
★★★ Should you really remove expired pages or can you leave them labeled 'expired'?
For classified ad sites with ephemeral content, two approaches are acceptable: redirecting to the category (soft 404) or returning a 404. In both cases, the page disappears from the results. You shoul...
John Mueller Mar 12, 2021
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.