What does Google say about SEO? /
Redirects represent a critical technical component of search engine optimization, especially during site migrations, redesigns, or URL structure changes. This category compiles all official Google statements regarding the implementation of various redirect types (301, 302, 307, 308) and their SEO implications. Understanding Google's stance on redirects is vital for preserving page authority and rankings during structural modifications. SEO practitioners will find valuable insights on PageRank transfer, Googlebot processing timeframes, best practices for avoiding redirect chains, and context-specific recommendations (HTTPS migrations, mobile versions, international content). Google has significantly evolved its redirect handling over the years, notably regarding temporary redirects that can now pass ranking signals under certain conditions. This official documentation enables optimization of migration strategies, minimizes organic traffic loss, and ensures smooth transitions during URL changes while adhering to the search engine's technical guidelines. Whether planning a domain migration, implementing HTTPS, or restructuring site architecture, these authoritative declarations provide the foundation for making informed decisions that protect search visibility and maintain hard-earned rankings throughout technical transformations.
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★★★ Should you really implement bidirectional redirection between desktop and mobile versions?
If you have separate desktop and mobile versions, it is recommended to redirect in both directions: mobile to desktop for desktop users, and desktop to mobile for mobile users....
John Mueller Sep 25, 2020
★★ Is your site migration stuck in 'pending' status in Search Console? Find out why!
A site move displayed as 'pending' in Search Console for months after submission signals no problem. This status simply indicates that Google is keeping track of the move. There is no 'completed' stat...
John Mueller Sep 14, 2020
★★ Should you consider using Prerender for serving static HTML to Googlebot?
Using a service like Prerender to serve static HTML to Googlebot instead of letting Google render JavaScript can reduce technical risks during migrations or changes. It is not required, but it can sta...
John Mueller Sep 14, 2020
★★ Is it true that a JavaScript migration can ruin your indexing due to cache issues?
During a domain migration of a client-side JavaScript site, Google may struggle to render pages correctly if JavaScript resources are cached from the old URL. This can lead to rendering failures and i...
John Mueller Sep 14, 2020
★★★ Should you really merge your similar content for better ranking?
Merging similar content and implementing redirects reduces Google’s crawl workload and helps centralize relevance and information in one place. This makes it easier to identify the right content to pr...
Martin Splitt Sep 09, 2020
★★ Should you reconfigure Search Console every time you migrate from www to non-www?
When changing a prefix (www/non-www), you must verify the new property if the verification is prefix-based. Domain verification avoids this problem. Search Console is not required for the website's op...
John Mueller Sep 04, 2020
★★★ What happens when you migrate from www to non-www without 301 redirects, and how does it destroy your SEO?
When transitioning from www to non-www (or vice versa), 301 redirects are essential. Without redirects, Google sees the old version as broken and gradually removes it, treating the new version as a co...
John Mueller Sep 04, 2020
★★★ Should you really keep HTTP to HTTPS redirections forever?
HTTP to HTTPS redirections should ideally remain in place forever. Once a site has migrated to HTTPS, there is no reason not to maintain these redirections permanently....
John Mueller Sep 01, 2020
★★★ What triggers the same signals as a complete site move when migrating to HTTPS?
Moving from HTTP to HTTPS requires redirecting all users to the HTTPS version via server-side 301 redirects. Google considers this a site migration with a change of URL....
John Mueller Sep 01, 2020
★★ Do free SSL certificates harm your Google rankings?
Any SSL certificate supported by modern browsers like Chrome is suitable for Google Search. Free certificates, especially those provided by Let's Encrypt, are perfectly appropriate for an HTTPS migrat...
John Mueller Sep 01, 2020
★★★ Should you really be worried about an HTTPS migration impacting your SEO rankings?
Migrating from HTTP to HTTPS generally does not negatively affect a site’s ranking. It is still the same website integrated in the same way into the web, and the HTTPS boost is too weak to be visible ...
John Mueller Sep 01, 2020
★★★ How long does Google really take to process an HTTPS migration?
Google typically processes HTTPS migrations in about a week on most sites, provided everything is configured correctly. The exact timing is not critical since users are redirected anyway....
John Mueller Sep 01, 2020
★★★ Should you really avoid changing everything at once during an SEO migration?
You shouldn't take advantage of a migration to simultaneously change multiple elements (URL structure, technology, content). Modifying all variables at the same time makes it impossible to identify th...
Martin Splitt Aug 27, 2020
★★ Does a migration trigger a quality reevaluation by Google?
Google constantly reevaluates content quality, whether during a migration or not. A site migration does not trigger any special quality reevaluation. Google always assesses content in its current form...
Martin Splitt Aug 27, 2020
★★★ How does Google really transfer signals during a domain migration?
When Google crawls the old site and detects the redirects, it checks that the new site is a one-to-one copy of the old one. If that's the case, signals from the old domain are transferred to the new d...
Martin Splitt Aug 27, 2020
★★★ Does a domain migration really lead to traffic loss?
A well-executed domain migration does not necessarily result in overall traffic loss. If you simply copy the entire URL structure and content to a new domain, traffic will decrease on the old one and ...
Martin Splitt Aug 27, 2020
★★ Should you really leave the robots.txt file unchanged during an SEO migration?
Do not change the configuration of the robots.txt file during a migration. If certain URLs were blocked by robots.txt for good reasons before the migration, they must remain blocked after the migratio...
Martin Splitt Aug 27, 2020
★★★ Should you really use Google Search Console's address change tool during a migration?
The address change tool in Search Console explicitly tells Google that a migration is intentional and not temporary or accidental. This additional signal allows Google to reprioritize the crawl, make ...
Martin Splitt Aug 27, 2020
★★★ Merging two websites: Why doesn’t Google treat this like a standard migration?
Merging two websites into one is not a standard site migration. It involves creating a new site that combines two existing versions, which requires Google to re-crawl numerous pages. The outcome and p...
Martin Splitt Aug 27, 2020
★★★ Should you really redirect all images during a site migration?
It is essential to implement 301 redirects for all images during a site migration. Visual content is very important for SEO. Since refreshing in the image index takes time, you should monitor the serv...
Martin Splitt Aug 27, 2020
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