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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.
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★★★ Should you really prioritize HTTPS and loading speed to rank on Google?
SEO technical priorities include HTTPS and site speed. These recommendations stem from a 'user-first' approach. Google regularly changes its criteria, but these technical elements remain important as ...
Martin Splitt Sep 23, 2020
★★★ Should You Focus Exclusively on Core Web Vitals to Optimize Web Performance for SEO?
John Mueller indicated on Twitter that "webperf" (Web performance, page load times, etc.) was often a complex topic, but that for SEO, Google stuck to Core Web Vitals and that the 3 criteria of these ...
John Mueller Sep 21, 2020
★★★ Does the alt attribute still play a role in web page SEO?
The alt attribute should accurately describe the content of the image (e.g., transcribe a quote if the image is a quote). Google uses the alt to understand the image for Image Search, not for traditio...
John Mueller Sep 14, 2020
★★ Can switching your WordPress theme really sabotage your SEO?
Changing a site's theme can have an SEO impact not through speed, but through the alteration of internal linking and the presentation of content. For example, a central image changing to a thumbnail c...
John Mueller Sep 14, 2020
★★ Is it true that a JavaScript migration can ruin your indexing due to cache issues?
During a domain migration of a client-side JavaScript site, Google may struggle to render pages correctly if JavaScript resources are cached from the old URL. This can lead to rendering failures and i...
John Mueller Sep 14, 2020
★★★ Does page speed really have such a minimal impact on Google rankings?
Page speed is considered for ranking only on mobile and is a relatively gentle factor. Even a significant score change (e.g., dropping from 100 to 20/100) generally won’t cause a notable drop in searc...
John Mueller Sep 14, 2020
★★ Is third-party JavaScript slowing down your site: Does Google really hold you accountable for ranking?
If a third-party JavaScript (e.g., advertising) significantly slows down a page, Google will measure this slowdown when evaluating speed for ranking, without making a distinction between site code or ...
John Mueller Sep 14, 2020
★★ Is it true that Google really ignores your tracking scripts during rendering?
Google ignores certain scripts during rendering if they are not necessary for displaying the page. Google Analytics and other common analytics scripts are automatically detected and skipped to speed u...
John Mueller Sep 14, 2020
★★ Why are crawl stats a completely useless indicator for assessing the performance of your content?
To determine if content is underperforming, check the Performance Report in Search Console rather than the crawl stats. If you're getting a lot of impressions but few clicks, the content may need to b...
Martin Splitt Sep 09, 2020
★★★ Do Core Web Vitals Really Matter for Google Rankings?
Gary Illyes explained on Reddit that the "Core Web Vitals (CWV)" project, which was set to launch in 2021, would not be a heavily weighted criterion in the algorithm: "Google strives to present the hi...
Gary Illyes Sep 09, 2020
★★ Why Did Google Remove Regex from Search Console Before Even Launching It?
A few weeks ago, the help documentation for the Search Console "Performance" report indicated that it was possible to use regex (regular expressions to filter data). Then John Mueller and Gary Illyes ...
John Mueller Aug 31, 2020
★★★ Merging two websites: Why doesn’t Google treat this like a standard migration?
Merging two websites into one is not a standard site migration. It involves creating a new site that combines two existing versions, which requires Google to re-crawl numerous pages. The outcome and p...
Martin Splitt Aug 27, 2020
★★ How long does it really take to transfer SEO signals during a migration?
The speed of signal transfer depends on the site's crawl budget, crawl frequency, and the number of external links. This can take anywhere from one day to several weeks depending on these factors. Sit...
Martin Splitt Aug 27, 2020
★★★ Is it true that AMP is a speed factor for Google?
AMP or non-AMP is not a speed criterion in itself: it is possible to create very fast pages without AMP and slow pages with AMP. Google measures the actual speed (future Core Web Vitals) of the versio...
John Mueller Aug 21, 2020
★★ Should you really keep nofollow on your footer links and service pages?
There is no need to use rel=nofollow on links to privacy policy pages or other service pages to prevent them from ranking. Google inherently understands that these site-wide linked pages are not the m...
John Mueller Aug 21, 2020
★★★ Do Core Web Vitals really measure what your users actually see?
For Core Web Vitals (a future ranking factor), Google measures the performance of the version of the page that users actually see: the AMP version if that’s what displays, the classic HTML version oth...
John Mueller Aug 21, 2020
★★★ Do site-wide links in the menu and footer really dilute the PageRank of your strategic pages?
Having multiple site-wide links to the same page (for example, in the menu and footer) does not significantly dilute the PageRank passed to other pages. Google understands that certain pages, like the...
John Mueller Aug 21, 2020
★★★ Why does Google measure Core Web Vitals on the actual page version your visitors are really viewing?
For Core Web Vitals (a future ranking signal, announced at least 6 months in advance), Google will analyze the page that real users predominantly view (AMP or standard HTML depending on the user journ...
John Mueller Aug 21, 2020
★★★ Should you still invest in AMP to optimize speed and ranking?
Speed is a ranking factor, but AMP is not necessary for having fast pages. You can create very fast non-AMP pages and slow AMP pages. What matters is the actual measured performance, not the AMP forma...
John Mueller Aug 21, 2020
★★ How can Search Console be leveraged to effectively audit and enhance your technical SEO?
Search Console offers features to enhance AMP implementation, request the temporary removal of content from search results, manage sitemaps, identify pages crawled and indexed by Google, and monitor s...
Daniel Waisberg Aug 18, 2020
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