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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.
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★★★ Why is Google ignoring desktop Core Web Vitals in its ranking algorithm?
The Page Experience ranking factor (including Core Web Vitals) applies to mobile and not to desktop, at least initially. The official announcement concerns only mobile, where performance barriers are ...
John Mueller Mar 12, 2021
★★ Does the Chrome UX Report really count your cached AMP pages?
The Chrome User Experience Report takes into account what users actually see. If it's a valid AMP page served from the cache, Google uses this data. If it’s not a valid AMP and cannot be served from t...
John Mueller Mar 12, 2021
★★ Can reducing page size really enhance your crawl budget?
If you improve Core Web Vitals by reducing page size, it can enhance your crawl budget. If Google can access HTML pages faster and render them more quickly, it can crawl more of them. However, it also...
John Mueller Mar 12, 2021
★★★ How does Google actually segment your Core Web Vitals by groups of pages?
For Core Web Vitals, Google uses data from the Chrome User Experience Report and segments the site into groups. For specific URLs, Google finds the most appropriate group. If AMP pages have a separate...
John Mueller Mar 12, 2021
★★★ How can you compel Google to refresh your JavaScript and CSS files during rendering?
To force Google to update JavaScript and CSS resources during rendering, use a content hash in the URL of the files. This way, Google will identify the new files, unlike persistent cache with identica...
John Mueller Mar 05, 2021
★★ Is it really necessary to test your Core Web Vitals in the lab to prevent regressions?
Google recommends running your own tests in parallel for important pages, using the Page Speed Insights API or third-party tools. Laboratory tests allow for the rapid detection of regressions, even if...
John Mueller Mar 05, 2021
★★★ Does relevance really outweigh Core Web Vitals in Google?
Relevance is still more important than Page Experience in Google ranking. URLs in brand searches continue to be displayed even with poor Core Web Vitals because Google cannot show a third-party blog i...
John Mueller Mar 05, 2021
★★ Will Core Web Vitals Change Again, and How Can You Prepare for Upcoming Updates?
Google plans to update Core Web Vitals metrics approximately once a year, notifying webmasters in advance. It's important to submit feedback to the Chrome team when calculations seem incorrect....
John Mueller Mar 05, 2021
★★★ Why does it take 28 days for your Core Web Vitals to update in Search Console?
The Core Web Vitals data displayed in Search Console is based on the Chrome User Experience Report, aggregated over 28 days. This delay is due to the method of data collection and aggregation, not a s...
John Mueller Mar 05, 2021
★★ How does Google really assess the Core Web Vitals of a page in its search results?
Core Web Vitals are grouped by page type in Search Console and Chrome UX Report. When a URL appears in the results, Google evaluates its group to determine if it provides a good page experience. Highl...
John Mueller Mar 05, 2021
★★ Do CSS animations really hurt your Core Web Vitals?
CSS position animations can contribute to layout shift calculations, even for sticky menus that do not cause a visible shift. Using opacity instead of position for animations can improve Core Web Vita...
John Mueller Mar 05, 2021
★★★ Will Core Web Vitals Really Revolutionize SERP Rankings?
Danny Sullivan explained on Twitter that Core Web Vitals, which will be launched next May, should not fundamentally change the game in the SERPs. He indicated that their impact will likely be very min...
Danny Sullivan Mar 01, 2021
★★★ Does traffic volume really influence your Core Web Vitals?
For Core Web Vitals, a site's traffic volume is not important as long as Google has enough data from the Chrome User Experience Report. There is no difference between millions or thousands of visitors...
John Mueller Feb 26, 2021
★★ Does PageSpeed Insights really measure your site's performance?
Lab tests like PageSpeed Insights are predictions of what users might see, not exact measurements. The location of the testing server matters little since connection time plays a minor role compared t...
John Mueller Feb 26, 2021
★★★ Does content relevance truly outweigh Core Web Vitals in Google rankings?
Core Web Vitals became a ranking signal in May 2021, but relevance is still far more important. A fast site does not guarantee the top position. A completely empty site may be very fast but utterly us...
John Mueller Feb 26, 2021
★★★ Can Core Web Vitals Really Boost Your Ranking Without Relevant Content?
Core Web Vitals do not guarantee a better ranking if relevance is insufficient. A very fast site without relevant content will not rank well. Relevance remains far the most important factor, while Cor...
John Mueller Feb 26, 2021
★★★ Does the traffic volume of your site affect your Core Web Vitals score?
For Core Web Vitals, traffic volume is not important as long as there is enough data in the Chrome User Experience Report. Data from millions of users or thousands does not have a different impact....
John Mueller Feb 26, 2021
★★★ Should you really ditch JavaScript libraries for native lazy loading solutions?
For lazy loading images, it is recommended to either use the browser's native lazy loading with the 'loading=lazy' attribute, or a solution based on Intersection Observer rather than libraries that ca...
Martin Splitt Feb 25, 2021
★★★ Do crawl errors really block your content from being indexed?
Server errors and connectivity issues (like being unable to access robots.txt) prevent Google from seeing the content, which directly impacts indexing and search performance....
Google Feb 25, 2021
★★★ Is JavaScript really wreaking havoc on your Core Web Vitals?
Excessive use of JavaScript can negatively impact all three Core Web Vitals metrics: Largest Contentful Paint (loading delay), First Input Delay (interaction block), and Cumulative Layout Shift (visua...
Martin Splitt Feb 25, 2021
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