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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.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 do your local performance tests never match Search Console data?
The Core Web Vitals data in Search Console is based on what real users have experienced, aggregated over a month. Your local connection to the site may be very different from that of the average user,...
John Mueller Nov 13, 2020
★★ Why are your key pages disappearing from the Search Console performance report?
If important pages on your site are not appearing in the performance report's page list, there may be a problem with them. Use the Inspect URL tool to find out why....
Daniel Waisberg Nov 12, 2020
★★ Why do your target queries never show up in Search Console?
If expected search queries do not appear in the performance report, your site may not have enough relevant useful content for those queries....
Daniel Waisberg Nov 12, 2020
★★★ Are Core Web Vitals really measured from Google bots or from your actual users?
Core Web Vitals come from real user data (Chrome UX Report), not from bots. Therefore, dynamic rendering does not impact Core Web Vitals since users receive the client-side rendered version....
Martin Splitt Nov 11, 2020
★★ Should you prioritize JavaScript performance for your real users over optimization for Googlebot?
If your JavaScript takes excessive time on a standard device (smartphone, computer), optimize first for your real users. User performance issues arise before rendering problems for Google....
Martin Splitt Nov 11, 2020
★★★ Are Core Web Vitals really measured on users or bots?
Core Web Vitals are measured from real user data (Chrome UX Report), not from rendered versions for bots. Therefore, dynamic rendering does not impact these metrics....
Martin Splitt Nov 11, 2020
★★ Should you really standardize your URL structure for better rankings?
Google does not require a consistent URL structure on your site. Mixed structures (with and without subfolders) technically work. However, a clear structure helps better analyze performance in Search ...
John Mueller Nov 10, 2020
★★ Should we treat SEO visibility as a technical requirement just like performance?
Developers must consider search engine visibility as a technical requirement just like performance or accessibility. A fast and accessible site is pointless if no one can find it....
Martin Splitt Oct 30, 2020
★★★ Can lazy loading without dimensions really jeopardize your CLS score?
If you are using lazy loading and a gray rectangle appears without fixed dimensions before the image loads, causing text shifts once the image is loaded, this can be a problem for visual stability (CL...
John Mueller Oct 30, 2020
★★ Should you really limit client-side API calls to boost your SEO?
Design your API to minimize the number of network calls from the browser to the server. Using GraphQL or creating a facade API that consolidates multiple requests into a single response can improve pe...
Martin Splitt Oct 30, 2020
★★★ Can lazy loading block Google from indexing your content?
If a site requires scrolling to a certain position for content to load automatically, Google will not see that content. Google loads the page once and sees what is displayed without performing any spe...
John Mueller Oct 30, 2020
★★★ Could Fixing CSS Dimensions of Your Graphics Save Your Core Web Vitals?
To avoid impacting your Core Web Vitals, use CSS to give fixed dimensions to graphic containers so they do not cause layout shift (cumulative layout shift) when they appear....
Martin Splitt Oct 30, 2020
★★★ Do PageSpeed tests really mislead you about your Core Web Vitals?
Google uses real-world data from the Chrome User Experience Report (CrUX) to evaluate Core Web Vitals, not lab tests. What actual users see matters more than synthetic tests....
John Mueller Oct 29, 2020
★★★ Does lazy loading really harm your content's indexing by Google?
When rendering a page, Google uses a fairly high viewport and indexes everything that loads within this viewport. If content requires a specific action (scroll, click on 'Read more'), it will probably...
John Mueller Oct 29, 2020
★★★ Are Core Web Vitals really the only speed criterion that counts for ranking?
For 'page experience' ranking, Google will rely solely on Core Web Vitals as the speed factor. Other performance metrics may be important for user experience but are not direct ranking factors....
John Mueller Oct 29, 2020
★★★ Core Web Vitals: Why does Google ignore other performance metrics for Page Experience?
For the upcoming Page Experience ranking factor, Google will use only the Core Web Vitals (not other performance metrics like Lighthouse). Desktop and mobile will be evaluated separately. Google will ...
John Mueller Oct 29, 2020
★★★ Can Your Slow Site Penalize Your Fast Pages?
John Mueller explained in a hangout that generally, the search engine uses granular data to analyze and test each page of a site. But sometimes, particularly regarding web performance (loading time), ...
John Mueller Oct 27, 2020
★★★ Does Google really evaluate Core Web Vitals by section or does it apply to the entire domain?
Google tries to be as granular as possible with Core Web Vitals. If the site structure allows for clear identification of sections (e.g., /forum), Google can apply different scores. If not, an aggrega...
John Mueller Oct 16, 2020
★★★ Can Google really evaluate Core Web Vitals section by section on your site?
Google tries to be as granular as possible in assessing Core Web Vitals. If your site has a clear structure (subdirectories or subdomains), Google can treat slow and fast sections differently. Without...
John Mueller Oct 16, 2020
★★★ Why do your Search Console data only tell part of the story?
To analyze changes in the Search Console performance report, you need to dig deeper to find specific examples: identify pages or queries that have changed in ranking, impressions, or clicks. This help...
John Mueller Oct 15, 2020
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