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
★★★ Are JavaScript links really being tracked by Google?
Google processes pages with JavaScript by trying to see them as they would be rendered to users, meaning that links must be correctly rendered in the DOM to be followed by the bot. Using JavaScript ev...
John Mueller Nov 28, 2019
★★★ Why does Search Console fail to detect all my mobile errors?
Mobile compatibility reports in Search Console are based on a sample of pages, not all indexed pages. Errors may sometimes be due to temporary access issues with CSS or JavaScript files....
John Mueller Nov 26, 2019
★★★ Can a domain change really be done without losing rankings?
A properly configured domain move should not significantly affect rankings if the domain is well-structured and geographic targeting parameters are correctly defined in Search Console....
John Mueller Nov 26, 2019
★★★ Does improving site speed really enhance Google’s crawl frequency and ranking?
Improving your site's speed can indeed increase crawl frequency if Google needs to access more URLs. However, crawl frequency does not guarantee a better ranking; it simply allows for quicker updates ...
John Mueller Nov 26, 2019
★★★ Does AMP really enhance your crawl budget?
AMP pages do not fundamentally change how our crawl budget is processed. They may be easier to crawl if they load more quickly, but they are not treated differently from traditional HTML pages....
John Mueller Nov 26, 2019
★★★ Should You Remove Analytics and Advertising Scripts to Optimize Googlebot Crawling?
Martin Splitt (Google) announced at the SMX East event that during the crawl and "rendering" phases, Googlebot does not take into account Analytics scripts or other advertising-oriented scripts it can...
Martin Splitt Nov 25, 2019
★★★ Can a Backlink Still Pass SEO Value if the Source Page Isn't Indexed?
John Mueller reminded us on Twitter that a backlink is only taken into account if the link is present in a page indexed by the search engine. If a link exists but the page containing it disappears or ...
John Mueller Nov 25, 2019
★★★ Is Google really cutting Flash from its index, and what does this mean for your rich content?
Google Search will no longer support Flash for indexing. The features once provided by Flash are now available in HTML and JavaScript, rendering Flash obsolete as most browsers no longer support it....
John Mueller Nov 18, 2019
★★★ How Long Does Googlebot Really Take to Render Your Pages?
Martin Splitt (Google) announced at the Chrome Dev Summit 2019 that the average time taken by Googlebot to render a page was 5 seconds. This could go up to a few minutes according to him....
Martin Splitt Nov 18, 2019
★★ Do temporary 404 errors really affect SEO rankings?
Temporary errors like sporadic 404 pages do not have a lasting negative impact on SEO if they are occasional and corrected quickly....
John Mueller Nov 15, 2019
★★★ Why is Google pushing JSON-LD when Microdata and RDFa work too?
The JSON-LD format is preferred for structured data because it is easy to implement and does not require rendering processing to be understandable by search engines....
John Mueller Nov 15, 2019
★★★ Does Googlebot really click your buttons to index dynamic content?
Googlebot does not click on elements to load additional content. Thus, dynamic content loaded via JavaScript without a distinct URL may not be indexed....
John Mueller Nov 15, 2019
★★★ Is it true that the Google Indexing API is inaccessible to 99% of websites?
The Indexing API is limited to live streaming content and job postings. For other content, it is recommended to use sitemap files....
John Mueller Nov 15, 2019
★★★ Should you really ditch infinite scroll to enhance your indexing?
To ensure good indexing, it is advisable to maintain normal links for pagination rather than infinite scrolling or AJAX techniques, especially for mobile versions of websites....
John Mueller Nov 15, 2019
★★★ Should you really disavow spammy backlinks inherited from a purchased site?
Backlinks created suspiciously by a previous administration of your site can be disavowed if you cannot clean them up. However, removing such links from your disavow file should not have major negativ...
John Mueller Nov 13, 2019
★★★ Does loading speed really affect Google rankings?
Improving your site's loading speed positively impacts not only potentially the ranking but also the user experience, as slow pages can discourage visitors....
John Mueller Nov 13, 2019
★★★ Is internal duplicate content really harmless for SEO?
Duplicate content within your own site does not lead to a penalty. It is typically viewed as natural and common....
John Mueller Nov 13, 2019
★★★ Should You Build Your XML Sitemap from a Third-Party Crawl or Use an Integrated Solution?
John Mueller indicated on Reddit that it wasn't a good thing to create an XML Sitemap file based on a site crawl by a third-party tool, as URLs can be missed and this can affect server response time d...
John Mueller Nov 12, 2019
★★★ Should You Split Your XML Sitemap Into Multiple Smaller Files Instead of One Large File?
John Mueller explained during a Reddit discussion that there is no ideal size for an XML Sitemap file. Generally speaking, he added that the size of this file does not influence the crawling of the si...
John Mueller Nov 04, 2019
★★★ Does BERT Really Require No Technical SEO Optimization Whatsoever?
Danny Sullivan reiterated on Twitter, as he typically does after almost every "core update," that there were no real modifications (particularly technical ones) to anticipate on your site following BE...
Danny Sullivan Nov 04, 2019
🔔

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.