What does Google say about SEO? /
John Mueller is one of Google's most active spokespeople on search engine optimization topics. As a Search Advocate, he regularly answers the SEO community's questions during Google Search Central sessions and on social media. His statements are a prime source of information for understanding how Google Search works and the best practices to follow.
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions
★★ Have user studies become a direct SEO signal?
It is advisable to conduct user studies to identify potential issues that your visitors encounter on your site. This can provide useful insights for improving the overall quality of the user experienc...
Sep 08, 2017 ⚡ Analysis available
★★★ Why does your site experience fluctuations in the SERPs and how can you stabilize these changes?
Fluctuations in results are normal and may indicate that our algorithms are uncertain about the relevance of your site for specific queries. Enhancing the site's quality could stabilize these fluctuat...
Sep 08, 2017 ⚡ Analysis available
★★★ Does Google really differentiate between singular and plural for SEO?
Google does not always consider singular and plural words as equivalent. The algorithms attempt to understand what each expression means. Depending on their interpretation and user behaviors, search r...
Sep 08, 2017 ⚡ Analysis available
★★ Is the new Search Console really going to change your SEO diagnosis?
The new version of the Search Console is in testing to enhance the identification and resolution of SEO issues by webmasters....
Sep 07, 2017 ⚡ Analysis available
★★★ Is changing your website's primary language a risk for losing backlinks?
Changing the primary language of a website can cause a contextual loss of backlinks, but 'hreflang' can help to better target....
Sep 07, 2017 ⚡ Analysis available
★★★ Should you really avoid changing the structure of your URLs?
Any change to the structure of URLs triggers a reevaluation by Google. Make sure it is worth it, except for migrations from HTTP to HTTPS....
Sep 07, 2017 ⚡ Analysis available
★★★ Is Googlebot over-crawling your CSS and JS resources?
If Googlebot is accessing CSS/JS resources too frequently, report it through Search Console to address potential caching issues....
Sep 07, 2017 ⚡ Analysis available
★★★ Does the 'Unavailable After' tag really allow you to schedule a page's removal from Google's index?
The 'Unavailable After' tag is swiftly processed by Google to remove pages on a defined date, useful for time-sensitive content....
Sep 07, 2017 ⚡ Analysis available
★★ Why does the 'site:' command take up to two months to reflect your actual changes?
Changes for a 'site:' command in search results can take one or two months to be fully reflected....
Sep 07, 2017 ⚡ Analysis available
★★★ Does changing your internal link anchors really trigger a Google recrawl?
Modifying internal anchors does not result in a major reassessment, unless the entire site structure is radically changed....
Sep 07, 2017 ⚡ Analysis available
★★★ Why should you choose a 301 over a 307 when migrating to HTTPS?
When switching to HTTPS, 307 redirects are typically handled by the browser and do not affect Google's crawls. Use 301 for server-side redirects....
Sep 07, 2017 ⚡ Analysis available
★★★ Can Google really ignore your unnatural backlinks without penalizing you?
Google can ignore unnatural backlinks without penalizing the site if it provides good content. Report spam practices to Google for manual review....
Sep 07, 2017 ⚡ Analysis available
★★★ Should you really avoid modifying the content of a recent page?
New pages often undergo natural ranking fluctuations. Changing content early can trigger temporary re-evaluations by the algorithms....
Sep 07, 2017 ⚡ Analysis available
★★★ Does lazy loading of images really block Googlebot?
Images loaded via lazy loading may not be seen by Googlebot if they rely on a user event. Ensure that images critical for SEO are accessible....
Sep 07, 2017 ⚡ Analysis available
★★★ Do GSC impressions truly reflect what your users see?
Impressions are counted only if the user is actually exposed to the results. A result on a page that the user does not visit will not be counted....
Sep 07, 2017 ⚡ Analysis available
★★★ Should you really limit the number of H1 tags on a page for SEO?
It is acceptable to use multiple H1 tags on a page. HTML5 allows for different structuring of a page, and this does not negatively impact SEO....
Sep 07, 2017 ⚡ Analysis available
★★★ Do you really need to host your domain in the target country to rank locally?
Domain geolocation is used to target users in a location. For a site targeting American customers, even if based in Austria, it is wise to target the United States....
Sep 07, 2017 ⚡ Analysis available
★★★ Why does Googlebot ignore your cookies and how does it affect your multilingual strategy?
Googlebot does not handle cookies. Do not rely on cookies to redirect users to a specific language version of a page....
Sep 07, 2017 ⚡ Analysis available
★★★ Should you really automate language redirections for your multilingual website?
You can automatically redirect users based on language or allow them to choose from a selection page. Ensure that language versions remain crawlable....
Sep 07, 2017 ⚡ Analysis available
★★★ Should you really be concerned about TLDs for an international website?
You can structure international domains however you wish. .eu domains are viewed as generic; avoid frequently changing geographic targeting....
Sep 07, 2017 ⚡ Analysis available
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