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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.
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★★★ Does Google really index what users see, or what's captured in the cache?
For indexing purposes, Google processes JavaScript separately and attempts to index what a user would see when visiting your website directly, regardless of what appears in the cache view....
John Mueller Apr 06, 2022
★★★ Does Google's cached view really store all your content?
Google Search sometimes keeps a copy of the HTML page retrieved from the server and displays it to users as a cached page. However, this is only the raw HTML page, without JavaScript rendering....
John Mueller Apr 06, 2022
★★★ Is an empty Google cache for your JavaScript site actually a sign of indexation problems?
In practice, JavaScript-based websites often display an empty or incomplete page when viewed from Google's cache. This is normal and is not a sign of a problem....
John Mueller Apr 06, 2022
★★★ Does Page Experience on desktop really deserve your attention as a ranking factor?
The Page Experience ranking factor, which includes Core Web Vitals (speed, responsiveness, and stability), was previously used only on mobile. It has recently been deployed for desktop users as well. ...
John Mueller Mar 31, 2022
★★★ Do Google's testing tools really crawl in real-time or do they rely on cached data?
The mobile-friendly test and URL inspection tool do not use any cached data to display information. They really retrieve this information live directly from your server....
John Mueller Mar 28, 2022
★★ Why Do Click Counts Differ Between Page-Level and Query-Level Reports in Search Console?
The differences between page-level and query-level clicks in Search Console are explained by anonymized queries. At the page level, all data is visible, but certain low-volume queries are not displaye...
John Mueller Mar 22, 2022
★★ Do you really need to wait a full year to evaluate SEO performance on a seasonal site?
For sites with seasonal variations, it is important to collect data over a complete year before drawing definitive conclusions, as user behavior and performance can vary significantly depending on the...
Martin Splitt Mar 22, 2022
★★ How many links should you really place on your homepage to optimize crawl budget?
The homepage is typically the most visited page on a site. Changing the number of links on this page can alter crawl depth and impact overall site performance in search results....
Martin Splitt Mar 22, 2022
★★★ Why do high-traffic pages carry more weight in your Core Web Vitals score?
For Core Web Vitals, Google examines a sample of your traffic through the Chrome User Experience Report. Pages with the most visits are the ones that matter most. Low-traffic pages don't affect your o...
John Mueller Mar 14, 2022
★★★ Does URL cache-busting really prevent Google from indexing your videos?
If a video's URL changes with every page load (cache-busting), Google cannot properly index the video because the URL becomes invalid when Google tries to retrieve it....
Danielle Marshak Mar 10, 2022
★★ Does JavaScript package size really impact your SEO rankings?
The size of JavaScript packages added to a page impacts performance, loading time, and user experience, which can negatively affect your SEO score and index rating if the packages are too large....
Martin Splitt Mar 09, 2022
★★★ Does improving user experience really impact your search engine rankings?
Making optimizations to improve user experience (performance, accessibility, usability) has a direct positive impact on search rankings. A search engine seeks to present sites offering the best experi...
Martin Splitt Mar 09, 2022
★★ Is lazy loading really an easy SEO optimization to implement without risks?
Adding lazy loading for images is a simple technical optimization to implement that can have a positive impact on performance and therefore on SEO....
Martin Splitt Mar 09, 2022
★★ Should you really be using Lighthouse with feature flags to measure SEO impact before rolling out changes?
The Lighthouse tool allows you to measure the impact of modifications on performance. It is recommended to use it with feature flags to compare performance before and after deploying a new feature....
Martin Splitt Mar 09, 2022
★★★ Do Core Web Vitals Really Affect Your Google Rankings?
Performance metrics like LCP (Largest Contentful Paint) matter for SEO. Improving these indicators has a positive impact on your site's index rating and search visibility....
Martin Splitt Mar 09, 2022
★★ Does server speed really impact the crawl budget of large websites?
For very large sites, server speed plays an important role in Google's crawl capacity. If a web server is very slow, Google cannot crawl as much content. The amount of crawl affects what can be indexe...
John Mueller Mar 05, 2022
★★★ Can Core Web Vitals Really Tank Your Rankings by 48 Positions?
Page Experience, including Core Web Vitals, is a subtle ranking signal that helps differentiate between content of similar quality. It should not cause drastic changes in positioning. A page should no...
John Mueller Mar 05, 2022
★★★ Does the shift from 'Bad' to 'Medium' on Core Web Vitals really transform your Google rankings?
Google uses Core Web Vitals (not the 0-100 PageSpeed score) as a ranking factor, based on what real users actually experience. Google primarily focuses on the gap between 'reasonably OK' and 'very slo...
John Mueller Mar 05, 2022
★★ Can an invalid AMP page still be indexed by Google?
A page built entirely in AMP is treated as a normal HTML page. If it's AMP-valid, Google can use the AMP cache and AMP features in search. But even if it's AMP-invalid, it will still be indexed normal...
John Mueller Mar 05, 2022
★★★ Does improving page speed really boost your rankings as fast as everyone claims?
A rapid ranking improvement after boosting page speed (from 30 to 45-50 on PageSpeed Insights) within a few days is probably not due to speed. Speed metrics are measured via the Chrome User Experience...
John Mueller Mar 05, 2022
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