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metrics enables webmasters to align technical optimizations with actual ranking signals rather than assumptions or outdated practices.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 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
★★★ Do Google Ads scripts really slow down your site in the eyes of PageSpeed Insights?
Google's speed testing tools (PageSpeed Insights) are agnostic to the origin of scripts. If a Google Ads script slows down a page, it will be flagged even if it comes from Google. Users don't care abo...
John Mueller Jul 24, 2020
★★ How does content hashing in URLs truly enhance your crawl budget?
To optimize caching and crawl budget, use content hashes in file names (e.g., application.AEF3CE.js) instead of generic names. This allows Google to cache resources indefinitely, and only new hashes w...
Martin Splitt Jul 14, 2020
★★★ Does the crawl budget truly impact the rendering phase of your JavaScript pages?
The crawl budget affects not only the initial crawl but also the rendering, as Google needs to fetch additional resources (CSS, JavaScript, API). A poor cache can force Google to continuously re-downl...
Martin Splitt Jul 14, 2020
★★ Should you ditch POST for crawlable APIs and switch everything to GET?
Google cannot cache POST requests, leading to greater crawl budget consumption. For rendering APIs, use GET requests. GraphQL can be employed to reduce the number of requests, but only in GET mode....
Martin Splitt Jul 14, 2020
★★★ Does the crawl budget really boil down to the simple sum of two variables?
The crawl budget consists of two elements: crawl rate (the speed at which Google can crawl without overloading the server) and crawl demand (crawl frequency based on content change frequency and not i...
Martin Splitt Jul 14, 2020
★★★ How can you leverage the Search Appearance tab to enhance your rich results?
The Search Console performance report contains a 'Search Appearance' tab that provides a quick overview of traffic volume from rich results. Some rich results have dedicated filters (such as How-to an...
Daniel Waisberg Jul 08, 2020
★★ Does JSON-LD FAQ Schema really slow down your site?
Adding JSON-LD markup (like FAQ Schema) has only a negligible effect on page speed. It adds a few bytes, but this is insignificant compared to the JavaScript and images typically loaded. The browser p...
Martin Splitt Jul 01, 2020
★★ Does JSON-LD Really Slow Down Your Loading Time?
Adding structured JSON-LD markup (such as FAQ Schema) has a negligible impact on page speed. It only accounts for a small percentage of the total weight compared to JavaScript and images, and the brow...
Martin Splitt Jul 01, 2020
★★ Why do your PageSpeed testing tools show contradictory LCP and FCP scores?
FCP and LCP do not necessarily happen simultaneously, especially on devices with slow CPUs or slow network connections. Lighthouse run locally can yield different results than PageSpeed Insights execu...
Martin Splitt Jul 01, 2020
★★ How can you precisely identify the elements that degrade your Cumulative Layout Shift?
To identify the elements responsible for a poor CLS, you can individually block requests in the Network tab of Chrome DevTools and rerun the metrics, or use an automated Puppeteer script. Lighthouse 6...
Martin Splitt Jul 01, 2020
★★★ Can ads drag down your Google ranking because of speed issues?
Google assesses the speed of a page as it is served to end-users, including ads. If ads slow down the page, this affects the speed score. Speed is already a factor in mobile ranking. Future Core Web V...
John Mueller Jun 26, 2020
★★ How does Google really refresh the AMP cache of your pages?
Google regularly updates the AMP cache, particularly during user visits to pages. There is also an API that allows for forced updates of the AMP cache for specific articles. When a user accesses a pag...
John Mueller Jun 26, 2020
★★★ Do Search Console reports really reflect your indexing status?
Search Console aggregate reports (mobile-friendly, structured data, Core Web Vitals) only show a sample of the indexed pages, not the entirety. In extreme cases, this sample may be limited to a single...
John Mueller Jun 26, 2020
★★★ Is page speed really just a secondary ranking factor in Google?
Google refutes the claim that page speed is the most important ranking factor. While speed is a factor to consider, it is not the primary criterion for ranking....
Martin Splitt Jun 24, 2020
★★ Is it true that “creating the best possible site” has become Google’s worst SEO advice?
Google acknowledges that telling webmasters to “build the best possible site” is not sufficient. The SEO community needs concrete and actionable recommendations to prioritize optimizations (HTTPS, spe...
Martin Splitt Jun 24, 2020
★★ Do technical errors on a main domain really penalize its subdomains?
Technical errors (404s, structured data issues, speed problems, grammar) on a domain generally do not affect subdomains. Exception: if the main domain appears completely offline, Google can deduce tha...
John Mueller Jun 23, 2020
★★★ Should you unblock JavaScript and CSS in robots.txt for better SEO?
Blocking access to JavaScript and CSS files via robots.txt prevents Google from downloading these resources, which can cause rendering issues. If content is generated by JavaScript or if non-native la...
Martin Splitt Jun 23, 2020
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