What does Google say about SEO? /
Domain names represent a foundational element of any SEO strategy, and Google's official statements on this topic provide essential clarifications for search engine optimization professionals. This category compiles all of Google's positions regarding the impact of domain choices on rankings: the influence of extensions (generic vs geographic TLDs), the use of subdomains versus subdirectories, the relevance of exact match domains (EMD), and technical questions related to URL structures. Google has regularly clarified its stance on these aspects, particularly concerning the relative importance of domain names in the ranking algorithm. Understanding these declarations helps dispel persistent misconceptions, such as overvaluing keywords in domains or myths surrounding certain extensions. Official recommendations also cover domain migrations, the use of the www prefix, trailing slash management, and optimal URL architecture. For SEO experts, this information proves crucial when launching new projects, undertaking redesigns, or developing international strategies, enabling informed decisions based on verified facts rather than assumptions. These insights directly impact technical SEO implementation and help align domain strategy with Google's actual ranking factors and best practices for sustainable organic visibility.
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★★ Is it true that Google advises against using reverse proxies for migrating from a subdomain to a subfolder?
To migrate from a subdomain structure to a subfolder, Google recommends using classic 301 redirects instead of a reverse proxy. Redirects are well controlled and avoid technical complexity and outage ...
John Mueller Jul 24, 2020
★★ Site Restructuring: Why does Google recommend redirects over reverse proxy?
For a site structure change (subdomain to subfolder), Google recommends using standard redirects instead of a reverse proxy. Redirects are better managed and cause fewer complications. Temporary fluct...
John Mueller Jul 24, 2020
★★★ Should you really apply noindex to all user profiles suspected of spam?
For forums with user profiles exploited for link building, apply nofollow to links and noindex to suspicious profiles. Google can learn to ignore all links from a domain if too much spam is detected, ...
John Mueller Jul 24, 2020
★★★ Could separating each step of a site migration save you weeks of SEO diagnostics?
During a domain merge or migration, Google recommends separating the different steps (changing the domain, URL structure, CMS, design) to easily identify the source of any potential issues. Merging co...
John Mueller Jul 24, 2020
★★★ Do domain migrations and mergers really cause SEO penalties?
Merging or redirecting domains does not trigger a webspam penalty. Simple one-to-one migrations stabilize quickly (a few days/weeks), but content mergers take much longer. It is recommended to separat...
John Mueller Jul 24, 2020
★★ Should you really separate your site into thematic subdomains for SEO?
Separating a site into thematic subdomains (sports, politics, etc.) is generally not useful for SEO. The exception is adult content: SafeSearch requires a distinct subdomain to effectively filter this...
John Mueller Jul 24, 2020
★★ Does the URL Inspection Tool really guarantee your pages will be indexed?
Google does not have any known crawling issues with the URL Inspection Tool, but submitting a URL does not imply automatic indexing. New sites without strong signals may not be indexed immediately; it...
John Mueller Jul 24, 2020
★★★ Are Multiple Redirect Chains Really Hurting Your SEO?
Redirect chains (http → www → https) do not pose a problem. Googlebot follows up to 5 redirects in a day and then continues to the next ones. Once the final URLs are known, Google focuses on them. The...
John Mueller Jul 24, 2020
★★★ Should You Block 404 Error Pages in Your Robots.txt File?
John Mueller indicated on Twitter that it would be a very bad idea to block pages that return 404 errors from search engine crawling, adding that Googlebot attempts to crawl billions of URLs that retu...
John Mueller Jul 20, 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 crawl budget really only concern very large sites?
Crawl budget should only be a concern for sites with millions of URLs. For sites with fewer than one million pages, crawl budget is generally not an issue unless the server infrastructure is failing....
Martin Splitt Jul 14, 2020
★★ Should You Avoid JavaScript Redirects for SEO?
Gary Illyes explained on Twitter that implementing redirects from one URL to another (in this case based on the visitor's IP address to redirect them to a specific site depending on the country) was n...
Gary Illyes Jul 13, 2020
★★★ How does Google really validate fixes in Search Console?
After fixing an issue, use 'Test Live URL' to ensure that the error no longer exists on the live page. Then, click 'Validate Fix' to initiate the validation process. Google will first check a few samp...
Daniel Waisberg Jul 08, 2020
★★★ How does Google Search Console now monitor your video structured data?
Google announced on Twitter a minor change in how video traffic data is displayed in Search Console: "if you're using structured video data, our report is now aligned with official documentation and w...
Google Jul 06, 2020
★★ Why are new sites automatically transitioning to mobile-first indexing?
Since July 2019, new sites automatically transition to mobile-first indexing. Even if the Search Console displays a desktop crawler, checking with the URL Inspection Tool shows that the smartphone cra...
金谷武明 Jul 02, 2020
★★ Could the canonical URL change based on a visitor's geolocation?
It is fundamentally difficult to imagine that the canonical URL could be representative of different conditions such as location. The canonical does not fluctuate based on any conditions....
小川安奈 Jul 02, 2020
★★ Why do indexed pages persist in site: search after a service has ended?
After a service closure, many pages may still be displayed indexed in site: search, but site: search does not necessarily show only canonicals. In reality, the new URL is likely chosen as the canonica...
金谷武明 Jul 02, 2020
★★ Should you be worried about the difference between / and /index.html?
If both a URL ending with '/' and '/index.html' exist on the domain's homepage and there are no redirects or canonical settings, Google recognizes them as separate URLs. One will be chosen as canonica...
金谷武明 Jul 02, 2020
★★ Do Japanese characters in URLs really block indexing beyond 100 pages?
There is no specification that using Japanese in custom URLs causes a site to disappear from Google search once it exceeds 100 articles. If indexing issues occur, one should check the crawl and indexi...
金谷武明 Jul 02, 2020
★★ Should you really redirect Googlebot to www to bypass CORB errors?
It is technically acceptable to redirect only Googlebot to the www domain while keeping users on the non-www version to avoid CORB errors caused by a service worker. However, Martin recommends fixing ...
Martin Splitt Jul 01, 2020
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