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
★★ Do spammy .xyz backlinks and other dubious domains really hurt SEO?
Backlinks from low-quality domains, such as .xyz domains used for spam, are recognized by Google's algorithms. However, these links shouldn’t be a major concern because Google knows how to handle them...
Sep 22, 2016 ⚡ Analysis available
★★★ Why doesn't Google automatically detect your HTTPS migration in Search Console?
When migrating to HTTPS, check the HTTPS version in Search Console to see accurate clicks and impressions. Google doesn't always find this automatically. Creating a comprehensive set that includes www...
Sep 22, 2016 ⚡ Analysis available
★★★ How does Google really transfer signals when changing domains?
During a domain change, Google tries to transfer signals from the original domain to the new domain. This includes links and content. It is important to follow Google's guidelines on domain migrations...
Sep 22, 2016 ⚡ Analysis available
★★ Does obsessively optimizing speed really yield measurable SEO gains?
Loading speed is a ranking factor, but Google primarily differentiates between very slow sites and those within an acceptable speed range. Improving by small fractions of a second does not provide sig...
Sep 22, 2016 ⚡ Analysis available
★★ Should you really display all your content on the first load to ensure indexing?
Google prioritizes indexing of content that is visible upon the first load of a page. Content not directly visible, particularly hidden by dynamic navigation scripts, may be indexed differently....
Sep 22, 2016 ⚡ Analysis available
★★ Should you really worry about an increase in crawl errors in Search Console?
An increase in crawl errors in Search Console may be due to our system re-evaluating old URLs. This usually does not require any action on your part....
Sep 22, 2016 ⚡ Analysis available
★★ Why doesn’t Google index images embedded in CSS Sprites for visual search?
Images embedded via CSS Sprites are not indexed for image search. Ensure that the images crucial for visual SEO are directly present in the HTML of product pages....
Sep 22, 2016 ⚡ Analysis available
★★★ Does Hreflang really boost your international visibility?
The Hreflang tag helps Google understand the target languages and regions of different page versions. This allows the correct version to be displayed to users in search results....
Sep 22, 2016 ⚡ Analysis available
★★★ Can geotargeting really enhance your local rankings on Google?
Utilize geolocation in Google Search Console to differentiate the regional versions of your site in order to enhance their local ranking and avoid confusion for users....
Sep 22, 2016 ⚡ Analysis available
★★★ Can subdomains really fine-tune Google's SafeSearch filtering?
Organizing sensitive content under distinct subdomains can help our algorithms apply SafeSearch exclusively to these sections. A clear structure also promotes filtering accuracy....
Sep 22, 2016 ⚡ Analysis available
★★★ Should you really create a separate page for each product marked up with Rich Snippets?
For Rich Snippets, do not mark up multiple products with the same structured data on one page. Each product must be marked up independently on its own page....
Sep 22, 2016 ⚡ Analysis available
★★ Does hidden content really hurt your page SEO?
Content placed in collapsible sections (accordions/tabs) may be less considered by Google, as it is viewed as less relevant. This content should be accessible via clean URLs to be properly indexed....
Sep 22, 2016 ⚡ Analysis available
★★★ Does Google really transfer all signals during a domain migration?
During a domain migration, Google attempts to pass all signals from the old domain to the new one, including links. It is advised to follow the guidelines for domain migrations for a smooth transition...
Sep 22, 2016 ⚡ Analysis available
★★★ Is mobile compatibility truly a game-changer for rankings?
Mobile compatibility is one among over 200 factors for ranking, but it is not the only determinant. Other factors can allow a non-mobile-optimized site to remain well-ranked....
Sep 22, 2016 ⚡ Analysis available
★★★ Should you really disavow low-quality backlinks?
Backlinks from unreliable domains or those selling links generally do not pose a problem and are often recognized by Google's algorithms. However, it is not necessary to disavow them systematically....
Sep 22, 2016 ⚡ Analysis available
★★★ Why do your click data disappear between Search Console and Analytics after an HTTPS migration?
If Google changes a URL version, for example from HTTP to HTTPS, the impression and click data will be on the HTTPS version in Search Console. It is advisable to check all site versions to track all d...
Sep 22, 2016 ⚡ Analysis available
★★★ Is the page title really a direct ranking factor?
A page title is a direct ranking factor. It also impacts the CTR by being displayed in search results and affects users through the bookmarks they may create....
Sep 20, 2016 ⚡ Analysis available
★★★ Why does Google's cache sometimes display different content from the actual text rendering?
If Google's cache shows incorrect content like a 404 page while the text rendering is correct, it may indicate rendering or JavaScript processing issues. The 'Fetch and Render' tool in Search Console ...
Sep 20, 2016 ⚡ Analysis available
★★★ How can a website redesign with HTTPS migration actually hurt your organic traffic?
Modifying the UX or making a site responsive while migrating to HTTPS can lead to traffic fluctuations because Google analyzes the site as overall new. Following Google's site migration checklist can ...
Sep 20, 2016 ⚡ Analysis available
★★★ Should you use the canonical tag for syndicated content?
For publications with sections shared across multiple sites, using the canonical tag to designate the preferred version helps concentrate all signals on this version for better web search rankings....
Sep 20, 2016 ⚡ Analysis available
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.