What does Google say about SEO? /
Web performance has become an official ranking factor in Google's algorithm, particularly since the introduction of Core Web Vitals in 2020. This category compiles all official Google statements regarding loading speed optimization, performance metrics, and their impact on organic search rankings. SEO professionals will find Google's positions on key indicators such as Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), First Input Delay (FID), and Interaction to Next Paint (INP). Google regularly communicates about the importance of loading times, Time to First Byte (TTFB), cache optimization, and techniques like lazy loading. These official declarations help understand how Google truly measures user experience, which performance thresholds to prioritize, and how PageSpeed Insights integrates into a site's overall evaluation. For search practitioners, following Google's official recommendations on web performance is crucial to maintain or improve search rankings while delivering an optimal user experience that enhances conversion rates and visitor retention. Understanding Google's evolving stance on speed metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.
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★★★ Can Quality Content Compensate for Poor Technical SEO?
John Mueller reminded us during a hangout that a technically flawless site (tags, UX, loading time, etc.) cannot rank on Google if it doesn't offer quality content above all else....
John Mueller Jan 14, 2019
★★★ Should You Optimize the Max-age Parameter for CSS and JavaScript Files for SEO?
John Mueller also indicated on Twitter that the search engine does not take into account the "Max-age" parameter (notably used for cache systems) of JavaScript or CSS files......
John Mueller Dec 31, 2018
★★ Should You Really Aim for 100ms Download Times to Optimize Google's Crawl?
John Mueller explained on Twitter that an interesting metric, in terms of page load times, could be to look at the Search Console, in the "Crawl > Crawl Stats" section, and then try to have the "Time ...
John Mueller Sep 17, 2018
★★★ Does Google's URL Removal Tool Actually Delete Your Pages from the Index?
John Mueller indicated on Twitter that the "Remove URLs" tool in Search Console only hides the URL from search results. It will therefore continue to be crawled, analyzed, and indexed until the 90th d...
John Mueller Aug 13, 2018
★★★ Should You Block Certain CSS or JavaScript Resources to Improve Your Site's SEO?
Once again, John Mueller explains in a hangout that he doesn't recommend blocking resources solely for Google, as this can affect how the search engine "sees" the page. And this can therefore modify i...
John Mueller Jun 06, 2018
★★★ Does Page Speed Really Impact Google's Mobile First Indexing?
John Mueller explained on Twitter that the Mobile First index and the page loading speed criterion were two separate things. Indexing and page ranking should not be confused, as some believe, especial...
John Mueller Mar 05, 2018
★★ Does Page Loading Speed Really Impact Your Page Indexing?
Regarding last month's Speed Update, John Mueller and Gary Illyes indicated on Twitter that while this new algorithm would affect page rankings on mobile, it does not impact indexing in any way. A slo...
John Mueller Feb 05, 2018
★★★ Should You Really Limit Each Page to a Single Keyword for SEO?
A user asked in a forum whether it was possible to optimize a web page for two keywords. Googler Aaseesh Marina responded that he didn't see why this wouldn't be possible, as long as the page's conten...
Google Feb 05, 2018
★★★ Can Spectre and Meltdown Security Patches Actually Hurt Your SEO Rankings?
John Mueller explained on Twitter that the Spectre and Meltdown patches, which slow down certain cloud service provider servers, should not have a significant impact on a site's page load time and the...
John Mueller Jan 22, 2018
★★ Should You Really Optimize TTFB to Improve Your Google Rankings?
John Mueller indicated on Twitter that Google does not take TTFB (Time To First Byte or server response time) into account in its algorithm or in any other way to measure the relevance of a result....
John Mueller Dec 04, 2017
★★★ Should You Worry About Google Removing Additional Links from the info: Syntax?
Google has confirmed that when you type a query like [info:www..com] into the search engine, the additional links that were placed under the result and provided information such as the cached version ...
Google Nov 13, 2017
★★★ How Can You Get Google to Index a New Page Quickly?
John Mueller shared an interesting tip on Twitter: if you want to quickly submit a new page to Google or resubmit an updated version, don't hesitate to use the Search Console and its "Crawl > Fetch as...
John Mueller Nov 06, 2017
★★★ Do you really need to optimize your XML sitemap loading speed?
John Mueller explained on Twitter that an XML Sitemap file doesn't need to load faster or slower, as long as a timeout doesn't occur, of course. But the loading time of this file isn't taken into acco...
John Mueller Sep 18, 2017
Should you still rely on Google's cache date to verify page crawling?
John Mueller indicated on Twitter that it's better not to pay too much attention to the date shown (last bot visit) when displaying the "Cached" version of a page (or using the "cache:" syntax for a U...
John Mueller Sep 18, 2017
★★★ Does the Absence of Google's "Cached" Link Indicate Low-Quality Content?
John Mueller explained on Twitter that the fact that the "Cached" link does not appear in the SERPs for a page is not synonymous with low-quality content for the search engine. This may mean that the ...
John Mueller Sep 11, 2017
★★★ Does the Meta Robots Noarchive Tag Actually Hurt Your Google Rankings?
John Mueller indicated on Twitter that using the meta robots "noarchive" tag (which prevents the cached version of a page from being displayed in Google search results) has no negative impact on the r...
John Mueller Sep 04, 2017
★★★ Does CSS File Size Really Impact Your SEO Rankings?
John Mueller indicated on Twitter that the size of a stylesheet (CSS) file does not impact the search engine's algorithm. It can be several tens of MB....
John Mueller Aug 14, 2017
★★ Are Page Speed and HTTPS Really Minor Ranking Factors?
Gary Illyes explained on Twitter that the page load time criterion (Page Speed) was, like the HTTPS criterion, more of a "tie breaker", a criterion to separate 2 pages that would have a very (too) clo...
Gary Illyes Jun 19, 2017
★★★ How can you know exactly how Google sees and understands your web page?
John Mueller explained on Twitter that if you want to know how Google sees your web page, it's better to use Search Console (Crawl section > Fetch as Google) than the "Cached" option available in sear...
John Mueller Jun 06, 2017
★★ Will Mobile PageSpeed Really Be Ignored as a Ranking Factor with Mobile First Indexing?
John Mueller indicated that when Mobile First indexing launches in a few months, a page's mobile PageSpeed score will not be considered as a relevance criterion, at least initially (currently it's the...
John Mueller Jan 09, 2017
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