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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.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 should WebPageTest be your go-to tool for web performance diagnostics?
The webpagetest.org tool provides a neutral waterfall chart (independent of your computer or connection) that analyzes loading times and the loading order of resources. It allows testing on different ...
John Mueller Aug 11, 2020
★★★ Should you focus on optimizing your site speed for Googlebot or your actual users?
Optimizing speed solely for Googlebot (by removing trackers/pixels) does not add value for ranking because Google uses Chrome User Experience Report data based on what real users see. Speed should be ...
John Mueller Aug 04, 2020
★★ How can you measure Core Web Vitals when your site isn't in CrUX?
When a site does not appear in the Chrome User Experience Report, it is possible to use the Core Web Vitals JavaScript library to collect this data directly in Analytics. This approach allows you to o...
John Mueller Aug 04, 2020
★★ How does my site get included in the Chrome User Experience Report without signing up?
Inclusion of a site in the Chrome User Experience Report (CrUX) is automatic, based on a sample of Chrome traffic. There is no manual registration required. Sites can also collect their own Core Web V...
John Mueller Aug 04, 2020
★★ Is Google Cache really not useful for assessing a page's SEO quality?
The presence or absence of a page in Google Cache is neither a sign of quality nor an indicator of ranking. It's simply a side effect of internal systems. To test what Googlebot sees, you should use t...
John Mueller Aug 04, 2020
★★ Should you create a lightweight version for Googlebot to speed up crawling?
Removing trackers and pixels to speed up the version served to Googlebot is probably not considered cloaking (akin to server-side prerendering). However, this adds no value because Google measures spe...
John Mueller Aug 04, 2020
★★ Should you serve a streamlined version of your pages to Googlebot to improve crawl efficiency?
Serving a faster page to Googlebot (without trackers or pixels) is not considered cloaking and is similar to server-side prerendering. However, this practice is discouraged because it introduces unnec...
John Mueller Aug 04, 2020
★★ Does splitting your sitemaps truly impact crawling and indexing?
The splitting of sitemaps (separate URLs, separate images, or everything in a single file) generally has no impact on crawling and indexing, provided that size and URL count limits are respected. Reas...
John Mueller Aug 04, 2020
★★ Does Google Cache Really Influence the Ranking of Your Pages?
The display or non-display of a page in Google Cache is neither a sign of quality nor a ranking indicator. It’s simply a side effect of internal systems. To test what Googlebot sees, you should use th...
John Mueller Aug 04, 2020
★★★ Do Core Web Vitals thresholds actually reflect high-quality user experience?
The thresholds used for the Page Experience benchmark are based on high-quality user experience, and their feasibility is verified against data from the Chrome User Experience Report. Tools such as Li...
John Mueller Jul 31, 2020
★★★ Could Page Experience Really Shift Your Google Rankings?
Google has announced that the Page Experience benchmark will become a ranking factor in search. This benchmark combines Core Web Vitals (loading speed, interactivity, stability) with other existing si...
John Mueller Jul 31, 2020
★★★ Is AMP really useless for Google ranking?
AMP is not a ranking factor. AMP simply indicates to users that they can expect a fast page. Fast non-AMP sites can outperform equivalent AMP pages. Page speed matters, not the framework used....
Martin Splitt Jul 27, 2020
★★★ Is it really necessary to aim for a Lighthouse score of 100 to rank better on Google?
Google does not rank pages based on a specific Lighthouse score. Pages are categorized into groups (slow, average, fast). Moving from a Lighthouse score of 90 to 95 does not make a difference for the ...
Martin Splitt Jul 27, 2020
★★★ Is page speed really overrated as a Google ranking factor?
Page speed is a ranking factor, but it is not the most important one. Relevant content remains king. Google cannot make it such a strong factor that it would prevent displaying the most relevant conte...
Martin Splitt Jul 27, 2020
★★★ How Can You Successfully Migrate Your Website Without Losing Your Organic Rankings?
John Mueller provided some insights on Reddit regarding website migration. First of all, if there are changes, they will primarily come from a new CMS and/or new content, not from a domain name change...
John Mueller Jul 27, 2020
★★★ Is it true that Google ignores GDPR interstitials without penalizing your SEO?
Legally mandated interstitials (privacy policy, cookie consent) are recognized and ignored by Google, provided they are displayed over the HTML content (div overlay) and not instead of the content (re...
John Mueller Jul 24, 2020
★★★ Does Google Ads really penalize the speed of your pages in PageSpeed Insights?
Google's speed testing tools are agnostic to the origin of scripts. If a Google Ads script slows down a page, the tool will report it without special treatment. Users care about speed, not about the s...
John Mueller Jul 24, 2020
★★★ Should you really aim for a perfect 100 on PageSpeed Insights to rank well?
The PageSpeed Insights score is not a magic number that you must absolutely reach 100. It is a combination of speed factors designed to identify weaknesses. In the future, Google will rely on Core Web...
John Mueller Jul 24, 2020
★★★ Do YouTube two-click embeds really hurt video SEO?
YouTube video embeds with placeholder (two-click for privacy) do not inhibit indexing if the VideoObject schema is used. Google can thus recognize the video and display it in results even without seei...
John Mueller Jul 24, 2020
★★★ Why can a site that steals your content rank better than you?
Google uses many ranking factors. A competing site that copies content can still rank better if other signals (speed, UX, backlinks, overall structure) are better. You need to improve the site as a wh...
John Mueller Jul 24, 2020
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