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
★★★ How Long Should You Really Wait After a Website Merger or Split?
John Mueller reminded us in a hangout that when multiple sites merge or "split" (one site broken into several different ones), it can take quite a long time for the search engine algorithms to fully p...
Jun 11, 2018 ⚡ Analysis available
★★★ Does Frequent Crawling Really Improve Your SEO Rankings?
John Mueller, once again, explained on Twitter that regular crawling of a site was not synonymous with better rankings and that, as a general rule, crawl frequency has no direct correlation with ranki...
Jun 06, 2018 ⚡ Analysis available
★★★ Should You Block Certain CSS or JavaScript Resources to Improve Your Site's SEO?
Once again, John Mueller explains in a hangout that he doesn't recommend blocking resources solely for Google, as this can affect how the search engine "sees" the page. And this can therefore modify i...
Jun 06, 2018 ⚡ Analysis available
★★★ Should You Really Worry About Crawl Budget for Your Website?
John Mueller indicated, again on Twitter, that the notion of "crawl budget" was often overestimated by webmasters. Focusing on this point can be effective for very large sites, not for smaller ones....
Jun 06, 2018 ⚡ Analysis available
★★★ Are PDF Files Penalized by Google for Not Being Mobile-Friendly?
John Mueller reminded us of an obvious fact on Twitter by explaining that a PDF document cannot be "mobile friendly" or at least that Google does not see them as such......
Jun 06, 2018 ⚡ Analysis available
★★★ How long does it really take to stabilize a site after a merger?
In the event of a merger or split of sites, it is necessary to anticipate that the transition will take time, and the results may only stabilize after several months. Proper redirects must be set up t...
Jun 01, 2018 ⚡ Analysis available
★★ Does switching from a keyword-rich domain to a brand affect your SEO negatively?
Changing from a keyword-based domain to a brand domain is not a significant decline factor, unless the new domain has a problematic history....
Jun 01, 2018 ⚡ Analysis available
★★★ Should you prioritize 301 redirects or canonicals when moving content?
When moving content from a subdomain or a section, use 301 redirects or canonical links to guide Google to the new URL. In the absence of physical redirection, a JavaScript redirect can also be used....
Jun 01, 2018 ⚡ Analysis available
★★ Do desktop PWAs require specific SEO optimization?
No specific implementations are required for desktop PWAs if your design is responsive. The same design should work across both interfaces....
Jun 01, 2018 ⚡ Analysis available
★★★ Does URL architecture really influence crawl depth by Google?
The site architecture is not determined by the number of slashes in the URL but by the ease of access to important pages from the home page. Ensure that critical pages do not require many clicks to ac...
Jun 01, 2018 ⚡ Analysis available
★★★ Should you really duplicate 100% of your desktop content on mobile to avoid penalties?
Ensure that the content of an m-dot site is equivalent to its desktop site, especially for mobile-first indexing. Any difference in content or structured data could be detrimental if the sites are not...
Jun 01, 2018 ⚡ Analysis available
★★★ Why are the Search Console data never in sync with Google Analytics?
The data from Search Console regarding impressions and clicks is generally reliable but can differ from other analytics tools due to the different measurement methods. Privacy filters can also influen...
Jun 01, 2018 ⚡ Analysis available
★★★ How can you display a mobile survey without harming your SEO?
On mobile, show the immediate content promised in the search results before displaying surveys or other pop-ups. What comes after (scroll or after an interaction) is more flexible, but should not bloc...
Jun 01, 2018 ⚡ Analysis available
★★ Why doesn't Google provide quality ratings in Search Console?
We contemplated adding quality messages to Search Console, but it's complex because these assessments would need to reflect what we actually use for ranking in search....
Jun 01, 2018 ⚡ Analysis available
★★ Why does your site rank better on mobile than on desktop?
If you notice better ranking performance on mobile compared to desktop, it may be related to local settings, personalization, or other factors. This likely indicates that your site is optimized for mo...
Jun 01, 2018 ⚡ Analysis available
★★★ Does AMP provide a real SEO advantage when your site is already mobile-friendly?
AMP can offer advantages even if the site is already mobile-friendly, particularly by enabling Google's cache for faster display in search results....
Jun 01, 2018 ⚡ Analysis available
★★★ Should you really declare all URL variants in Search Console?
It is recommended to add all URL variants (WWW, non-WWW, HTTP, HTTPS) to Search Console to gather all the data. We are working to simplify this process in the future....
Jun 01, 2018 ⚡ Analysis available
★★★ Should you really use 'noindex' on the unfinished translations of your multilingual site?
'Noindex' is appropriate for partially translated pages. It is normal for updated pages to take time to be reindexed after 'noindex' is removed....
Jun 01, 2018 ⚡ Analysis available
★★ Why does Google change the color of URLs in the SERPs from green to gray?
The color variations of URLs in search results (green or gray) may be part of the user interface tests we conduct to enhance the clarity of results....
Jun 01, 2018 ⚡ Analysis available
★★★ Is mobile speed really a weak ranking signal as Google claims?
The mobile loading speed criterion is a ranking signal solely for mobile searches, and it is only expected to be effective starting in July....
Jun 01, 2018 ⚡ 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.