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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★★★ Do 302 redirects really turn into 301s over time?
Google eventually treats 302 redirects as permanent redirects (301) when they persist over time. This is considered a 'soft 301' from Google's perspective....
John Mueller Oct 29, 2020
★★★ Why does keeping your old sites live kill your new domain?
Maintaining two old sites active with links to a new central site prevents the new site from gaining visibility as the value is not transferred. Without redirects, the new site struggles to rank and w...
John Mueller Oct 29, 2020
★★ Does Google instantly change the canonical URL after removing a redirect?
When a redirect is set up and then removed, the canonicalization algorithms do not perceive the site as deceptive. They look at the current state. Google tends to be persistent with the canonical URL ...
John Mueller Oct 29, 2020
★★★ Should you really cancel a failed domain migration or commit to it fully?
You should avoid canceling a domain migration because it does not revert everything to the original state. You're simply moving the current situation (with its issues) back to the old domain. This res...
John Mueller Oct 29, 2020
★★★ Do 302 redirects really pass as much PageRank as 301s?
Both 301 and 302 redirects pass exactly the same signals, including PageRank. The difference is solely in canonicalization: Google may index the original URL with a 302, but signals are never lost wit...
John Mueller Oct 29, 2020
★★★ Can you really migrate multiple sites to a single domain using Google's Change of Address tool?
The Change of Address tool in Search Console only allows for migrating one domain to another, not multiple domains to a single one. You can still perform the migration with 301 redirects but cannot us...
John Mueller Oct 29, 2020
★★★ Do 302 redirects really pass on as much PageRank as 301 redirects?
Google uses numerous signals to determine the canonical URL: 301/302 redirects, rel canonical, internal/external links, sitemap, appearance of the URL. A long-term 302 can be treated as a 301 if it st...
John Mueller Oct 29, 2020
★★★ Is it really necessary to avoid any migration following a failed domain migration?
During a problematic domain migration, the one thing you must absolutely avoid is another migration. Internal changes to the site are acceptable, especially if they don't involve modifying URLs....
John Mueller Oct 29, 2020
★★★ Do 302 redirects really pass PageRank like 301 redirects?
Google treats both 301 and 302 redirects similarly when it comes to the transmission of SEO signals. Both types of redirects pass PageRank and other signals. The difference mainly lies in the choice o...
John Mueller Oct 29, 2020
★★ Can 307 HSTS redirects really harm your site's SEO?
Googlebot does not see the 307 HSTS redirects that you would see in a browser, and this poses no issue for SEO. 307 HSTS redirects do not affect Google's crawling....
John Mueller Oct 28, 2020
★★★ Does Googlebot really ignore HSTS 307 redirects, or is there a catch?
Googlebot does not interact with 307 redirects generated by HSTS. These 307 redirects are not real server-side redirects but rather redirects generated by the Chrome browser to indicate that it is app...
John Mueller Oct 28, 2020
★★ Does Googlebot really follow HTTP redirects to HTTPS like a regular browser?
When Googlebot accesses an HTTP URL that redirects to HTTPS (which is typically the case for a site with both HTTP and HTTPS), it will follow this actual server-side redirect normally....
John Mueller Oct 28, 2020
★★★ Are 307 HSTS redirections really invisible to SEO?
The 307 redirections you see in Chrome with HSTS aren't actually present on the server. Chrome displays a 307 result code to clearly indicate that an HSTS redirection has occurred, but this is just a ...
John Mueller Oct 28, 2020
★★ Should You Really Worry About 302 Redirects During a Migration Error?
Using a 302 redirect instead of a 301 during a migration will take longer for canonicalization to focus on the new URL. In the long run, the difference is minimal, but for a permanent migration, a 301...
John Mueller Oct 16, 2020
★★ Does a 302 redirect ultimately equate to a 301 in terms of SEO?
Using a 302 redirect instead of a 301 for a permanent migration will lengthen the canonicalization time, but in the long run, the difference will not be significant. However, a 301 remains the recomme...
John Mueller Oct 16, 2020
★★★ Why does merging two websites lead to traffic loss even with perfect redirects?
Merging two sites is more challenging than a simple migration because Google needs to recalculate the internal linking structure, determine which pages are relevant, and how they connect to the rest o...
John Mueller Oct 16, 2020
★★★ Why doesn't merging two websites ever double your SEO traffic?
Merging two sites is more challenging than a simple migration because Google must reassess internal linking, page relevance, and their connection with the rest of the web. The final result is not simp...
John Mueller Oct 16, 2020
★★★ Does a domain migration really transfer all ranking signals?
During a simple domain migration (one-to-one), Google typically transfers all ranking signals. Google has worked long to make these migrations as smooth as possible, and in most cases, they work very ...
John Mueller Oct 16, 2020
★★★ Does a 1:1 domain migration truly transfer ALL ranking signals?
During a simple domain migration (one-to-one), all ranking signals are transferred. Google has worked long to make these migrations as seamless as possible, and they generally work very well....
John Mueller Oct 16, 2020
★★ Do JavaScript redirections to error pages really trigger an error signal for Googlebot?
When JavaScript redirects to an error URL configured with the correct HTTP status code, it signals to browsers and Googlebot that the page is redirecting to another URL that is a real error....
Martin Splitt Oct 14, 2020
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