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 crawl budget really a non-issue for your website?
The crawl budget pertains to all the URLs that we retrieve from the server, including the resources necessary to render a JavaScript page. However, for most sites, the crawl budget is not an issue....
John Mueller May 28, 2019
★★★ Are subdomains really penalized by Google regarding quality?
Subdomains can be evaluated differently in terms of quality and relevance compared to the main domain. Translating templates without the primary content can de facto reduce the perceived relevance by ...
John Mueller May 28, 2019
★★★ Do Google testing tools really misrepresent your site's true status?
Testing tools like the mobile-friendly test are speed-oriented and may not load all resources on a page, which can lead to irrelevant errors for ranking....
John Mueller May 28, 2019
★★★ Does JavaScript really delay the indexing of your pages by Google?
Googlebot executes the JavaScript of websites, but this may happen with a certain delay. Therefore, links dynamically generated by JavaScript are not immediately discovered during the first crawl but ...
Martin Splitt May 22, 2019
★★ Does copied and scraped content really threaten your SEO?
Google is generally capable of ignoring copied or scraped content. However, if you notice that your content is duplicated elsewhere, it may be useful to disavow those links using the disavow tool....
John Mueller May 17, 2019
★★★ Can a domain with a dubious history really win back Google's favor?
A problematic age of the domain, such as a previous use for low-quality content, can have a lasting impact on ranking. However, with quality content and sound SEO practices, the site should be able to...
John Mueller May 17, 2019
★★★ How can you permanently remove a test site from Google's results without delay?
To quickly remove a test site from search results, you can use the removal tool in Search Console. Additionally, ensure that Googlebot cannot access the site through means such as server authenticatio...
John Mueller May 17, 2019
★★ Do RSS feeds really replace XML sitemaps for indexing in Google News?
Google uses RSS feeds for indexing in certain Google News products. This can be confusing for those who traditionally use XML sitemaps....
John Mueller May 16, 2019
★★ How long does it take for Google to reassess the quality of a site after an update?
Significant updates to a site can be recognized quickly by Google, but for changes in overall quality, this can take several months. Major algorithm updates are not necessary for Google to reassess an...
John Mueller May 16, 2019
★★ Do Google Spam Reports Really Make a Difference?
Spam reports can be submitted to Google via a dedicated form, and although correcting these issues may be slow, Google regularly evaluates these reports to improve its algorithms and remove notorious ...
John Mueller May 16, 2019
★★★ Should you really disavow spammy links detected in Search Console?
It is generally unnecessary to take measures against spammy links that appear in Search Console. However, if you want to ensure that they have no impact, you can use the disavow file, ideally based on...
John Mueller May 16, 2019
★★ Should you isolate your forums on a subdomain to protect your SEO?
Forums can be integrated into a website if the content is well moderated, but in cases where comprehensive quality control is difficult, it might be wise to place them on a subdomain or separate domai...
John Mueller May 16, 2019
★★★ Is web performance really a crucial SEO lever or just a comforting myth?
Performance not only improves the speed of your site but also its visibility. Google favors sites that provide a fast user experience, particularly through server-side rendering for quicker content di...
Martin Splitt May 15, 2019
★★★ Should You Enter SEO Contests to Test Your Skills and Strategy?
John Mueller let loose on Twitter about SEO contests, which he doesn't seem particularly fond of: "SEO contests are rather useless. They never reflect real performance, they generate a ton of spam tha...
John Mueller May 13, 2019
★★ Do links from spammy sites really hurt your SEO?
Links from spammy sites, which often include content related to popular sites, should not negatively affect SEO when they point to your site....
John Mueller May 10, 2019
★★★ What are the implications of Googlebot denying API permissions for your site's crawlability?
Browser APIs requiring permissions, such as geolocation or webcam access, are denied by Googlebot....
Zoe Clifford May 10, 2019
★★★ Is it still necessary to modify your JavaScript for Google to crawl it?
Modern JavaScript features, including Let, Const, and new array methods, are now usable with Googlebot. The use of polyfills specifically to maintain compatibility with Googlebot is no longer necessar...
Martin Splitt May 10, 2019
★★ Why does Google still limit the Indexing API to job postings?
The Indexing API is currently limited to job postings. Google is gathering feedback to potentially extend it to other areas....
John Mueller May 10, 2019
★★ Should you really abandon dynamic rendering for SSR?
Dynamic rendering is a short-term workaround for sites where bots cannot execute JavaScript, but in the long run, it's better to switch to server-side rendering (SSR) or SSR with hydration....
Zoe Clifford May 10, 2019
★★★ Does Googlebot really use the stable Chrome rendering engine for JavaScript rendering?
Googlebot now uses the stable Chrome rendering engine. This means that compatibility with modern JavaScript features has improved, notably with new APIs like Intersection Observer....
Martin Splitt May 10, 2019
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