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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★★★ Is JavaScript really a challenge for Google’s crawling?
Google can generally manage major sites using JavaScript well unless the execution of each page requires a specific service worker, which could be an issue....
John Mueller Aug 24, 2017
★★ How can you isolate SEO traffic from a subdomain or mobile version in Search Console?
You can check organic traffic on a specific subdomain or mobile version of a site via Search Console by configuring the appropriate properties....
John Mueller Aug 24, 2017
★★ Should you really keep your Disavow file even with dead domains?
Disavowed links in disavow files are ignored by Google and do not affect SEO rankings. Therefore, you do not have to delete these files even if the linked domains show errors or are no longer online....
John Mueller Aug 24, 2017
★★★ Should you block JavaScript scripts in your robots.txt?
Blocking JavaScript scripts in the robots.txt file may be inconsequential if these scripts do not contain essential content for indexing. However, if key elements such as links to stores on a map are ...
John Mueller Aug 24, 2017
★★★ Can Google really discover and index all the JavaScript links on your site?
Google can discover URLs even if they are generated by JavaScript, as URLs present in JavaScript files can be crawled and indexed....
Google Aug 23, 2017
★★ Can you really declare multi-domain sitemaps via robots.txt, or should you go through Search Console?
To include sitemaps from multiple domains, you can either include the sitemap directive in the robots.txt file of each domain or use a site management tool like Google Search Console to prove ownershi...
Google Aug 23, 2017
★★★ Does adding or removing thousands of internal links really hurt SEO?
Rapid fluctuations in the number of internal links, such as adding or removing tens of thousands of links, do not automatically harm rankings if the site is generally reliable and well-structured....
Google Aug 23, 2017
★★★ Does AMP really boost SEO ranking or is it just a myth?
AMP does not directly improve rankings in Google Search but enhances loading speed, which can indirectly improve user experience....
John Mueller Aug 22, 2017
★★★ Can your blog truly drag down your entire site on Google?
Excessively broad or low-quality blog content can influence Google's overall perception of your website's quality. Reviewing your articles for quality can be beneficial....
John Mueller Aug 22, 2017
★★★ Why Is Google Indexing More URLs Than Those Declared in Your XML Sitemap?
A user pointed out to John Mueller that in their Search Console, the XML Sitemaps report indicated there were more indexed URLs than URLs in the Sitemap. John responded that this likely came from the ...
John Mueller Aug 21, 2017
★★★ How Can You Prevent Google from Indexing Your Pre-Production Site?
John Mueller posted a fairly lengthy message on Google+ about the best way to prevent a test site (pre-production) from being indexed by Google, as we unfortunately see so often. If this mishap happen...
John Mueller Aug 21, 2017
★★★ Does Google Really Consider Server Load Balancing as Cloaking?
John Mueller indicated on Twitter that redirecting a user to a faster server based on the load observed at a given time was not considered cloaking....
John Mueller Aug 21, 2017
★★ What are the only two fields in an XML sitemap that Google actually cares about?
John Mueller explained on Twitter that in XML files, the two most important fields are the URL (<loc>) and the last modification date (<lastmod>)....
John Mueller Aug 21, 2017
★★ Why Aren't Your Rich Snippets Showing Up in Google Despite Perfect Markup?
John Mueller indicated that there could be 3 reasons why rich snippets (or rich cards) don't appear in the SERPs for a site: technically incorrect code, an issue with official guidelines not being fol...
John Mueller Aug 21, 2017
★★ Should You Really Deindex Your Internal Search Results Pages?
John Mueller explained on Twitter why Google requires internal search results pages from a website to be deindexed: they create infinite crawl spaces, are often low-quality pages, and frequently prese...
John Mueller Aug 14, 2017
★ Are PBNs Really Detected and Penalized by Google?
John Mueller indicated in a hangout that Google's algorithms detect PBNs without too much difficulty and, for those that slip under the radar, the "webspam team" loves diving into them......
John Mueller Aug 14, 2017
★ Does disavowing poor-quality backlinks really carry a negative impact?
Gary Illyes indicated on Twitter that a disavowed site, therefore designated as providing low-quality links, was not negatively impacted subsequently by Google's algorithm. The links it provides are s...
Gary Illyes Aug 14, 2017
★★ Does Googlebot Send a Referrer When Crawling Your Pages?
John Mueller indicated on Twitter that Googlebot, when crawling a page, does not return a referrer URL, as a user would when browsing on a browser. A Googlebot visit is therefore similar to direct tra...
John Mueller Aug 14, 2017
★★ What's the Maximum Page Size Google Will Actually Crawl?
John Mueller explained that Googlebot's current crawl limit for a web page is 200 MB (the last known limit in 2015 was 10 MB)....
John Mueller Aug 14, 2017
★★★ Is it true that Private Blog Networks (PBNs) are really detected and ineffective for SEO?
Private Blog Networks (PBNs) are indeed detected by our algorithms and the spam-fighting team, and they do not positively affect your ranking....
John Mueller Aug 11, 2017
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