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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★★★ HTML or XML Sitemap: Which Should You Prioritize for Google Crawling?
An HTML sitemap is designed for users to navigate the site and is not a replacement for an XML sitemap, which is structured specifically for search engines....
Martin Splitt Oct 01, 2026
★★ Why does Google deindex your pages due to errors served with HTTP 200?
A business and supplier site has seen its pages deindexed by Google. The search engine has chosen a third-party online betting site as the canonical URL, with no apparent content relation. Live testin...
John Mueller Sep 29, 2026
★★★ Is it true that programmatic SEO is incompatible with quality content?
In a response published on Bluesky, John Mueller warns against programmatic SEO. According to him, this practice can lead the site to be perceived as spam or nearly so, or of low quality. To recall, p...
John Mueller Sep 08, 2026
★★ Does Google really launch its SEO updates before officially announcing them?
John Mueller reiterated a position that has been stated numerous times in the past: Google never announces an update late. The announcement comes almost simultaneously with the actual deployment. Why ...
John Mueller Aug 25, 2026
★★★ Does Googlebot send other HTTP requests besides GET and POST on your site?
Gary Illyes confirmed on LinkedIn that Google's crawlers do not only send HTTP GET and POST requests, but also HEAD, OPTIONS, PUT, PATCH, and DELETE requests, in response to several questions received...
Gary Illyes Aug 11, 2026
★★★ Why does Google ignore your robots.txt rules even when they explicitly disallow access?
A Reddit user was managing a Shopify client whose internal search bar was being exploited by spam: spammer requests were generating search result URLs pointing to third-party sites. The client had blo...
John Mueller Jul 28, 2026
★★★ Should you hide an HTML link to optimize the anchor text that Google considers?
On Reddit, a user explained that he had a homepage containing two links to the same services page: a prominently visible 'Services' button at the top, and a second link in a FAQ section lower down, wh...
John Mueller Jul 21, 2026
★★★ Should you stop using the indexing report as a checklist?
The indexing report should be used to spot trends or unexpected changes, rather than as an inventory check. This helps to quickly identify potential technical or configuration issues....
Martin Splitt Jul 16, 2026
★★ Should you really block AI crawlers in your robots.txt?
John Mueller stated on Reddit that the "Content Signals" directive in robots.txt, created by Cloudflare last year, has "no effect" on crawlers or LLMs. According to him, it only adds unnecessary weigh...
John Mueller Jul 14, 2026
★★★ Is your LCP really the one you think you're optimizing?
John Mueller highlighted the Nuvemshop study published on web.dev to illustrate a common pitfall: the idea that customizable layouts can distort the element the browser measures as LCP. Teams believed...
John Mueller Jul 07, 2026
★★ Will AI agents revolutionize SEO ranking criteria?
John Mueller responded to a question regarding the impact of AI agents (such as Gemini) on Google's quality criteria. According to him, the fundamentals do not change. A site that is useful for humans...
John Mueller Jun 30, 2026
★★ Could Google Search creator profiles change the SEO game?
Google is launching search profiles for creators and publishers based in the United States, providing a space to showcase their social content. These profiles allow for tracking the performance of the...
John Mueller Jun 18, 2026
★★★ Is it really necessary to split your XML sitemap into multiple files?
Some SEO experts choose to split their XML sitemap into several categories based on their site structure. In a Reddit discussion, John Mueller shared the reasons he has observed over the years: Tracki...
John Mueller May 26, 2026
★★★ Is it really necessary to check Search Console daily, or are email alerts enough?
On Reddit, John Mueller clarified the usefulness of Search Console email alerts. He believes that email alerts are very beneficial as they indicate major issues. They allow for a quick one-click che...
John Mueller May 26, 2026
★★★ Is Google's indexing API becoming unusable due to abuse?
John Mueller stated on Bluesky that Google's indexing API is overwhelmed by bloggers attempting to pose as legitimate sites. This situation is pushing Google to become stricter about access to this to...
John Mueller May 19, 2026
★★ Is AI truly simplifying SEO workflows or are there critical technical risks lurking beneath the surface?
AI can facilitate the creation and testing of websites, but having a technical understanding of deployment scripts, pre-submissions, and linting remains crucial to ensure site integrity, particularly ...
John Mueller May 07, 2026
★★ Is the massive deindexing on Google Search real or just a bug in the Search Console?
Since the beginning of April, many SEO professionals and website owners have reported an acceleration in the deindexing of their pages by Google. Pedro Dias (former Googler) and other specialists note...
John Mueller May 05, 2026
★★★ Is Google finally revealing how it really analyzes your pages with HTTP Archive?
HTTP Archive is used by Google to analyze how web pages evolve in terms of performance, JavaScript usage, and other essential SEO metrics....
Gary Illyes Apr 23, 2026
★★★ Does Google use custom JavaScript scripts to evaluate your pages?
Google uses custom metric scripts to extract more specific data during website page tests, providing flexibility in the pursuit of information that is otherwise unavailable....
Martin Splitt Apr 23, 2026
★★★ Could a domain name similar to a competitor harm your SEO?
A webmaster was concerned about having a domain very close to another (only one letter difference). John Mueller responds that this is generally not an issue for SEO in itself. The only real risk iden...
John Mueller Apr 21, 2026
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