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 keep old pages live during an SEO migration?
During a migration where some pages won't be ready immediately, it's best to keep the old pages active until the new ones are available, allowing for a consistent transition without losing SEO signals...
John Mueller Jul 02, 2021
★★★ Why do SEO site mergers take so long?
Merging or splitting sites generally takes longer than just a simple domain redirect. One should expect several months before search results fully stabilize after a site merger or split....
John Mueller Jul 02, 2021
★★ Why doesn't Google acknowledge when site migrations are complete?
Google does not have an internal status indicating that a site migration is completely finished. Notifications in Search Console have an expiration period (90 to 180 days), but that does not mean the ...
John Mueller Jul 02, 2021
★★ Why are server-side 301 redirects essential for migrating a SPA?
To migrate a single-page app website to a new domain in Search Console, 301 redirects must be generated server-side for each page, not via JavaScript, as Search Console checks for the existence of act...
John Mueller Jul 02, 2021
★★★ How can you optimize a site merger using canonical tags?
<p>For a site merger with a transition period, it is recommended to use canonical tags pointing to the main site. This indicates to Google that the content is equivalent with preference for the main v...
John Mueller Jul 02, 2021
★★★ How can you reverse a 301 redirect without any hassle?
To undo a mistakenly set 301 redirect, simply delete the redirect and revert the page to a 200 status. No special action is required, similar to fixing an accidental 404 error. SEO signals will natura...
John Mueller Jul 02, 2021
★★ Should you really worry about the type of traffic during a domain migration?
From Google's search perspective, the distinction between organic traffic and referral traffic during a domain migration is not significant. The difference may appear in Google Analytics but is not us...
John Mueller Jun 25, 2021
★★★ Why should your AMP content align with the canonical page?
According to the AMP guidelines for Google Search, the content displayed and the possible actions on an AMP page should be as similar as possible to the corresponding canonical page. AMP lead pages th...
Google Jun 24, 2021
★★★ Why does Google keep crawling your old URLs even after a migration?
After a migration with redirects, Google periodically crawls old URLs to verify the redirects. This behavior is normal and does not represent a waste of crawl. Old URLs should not be blocked....
Google Jun 24, 2021
★★★ Why Are Redirections Critical During a Website Migration?
When migrating a website, it is essential to ensure that redirections are properly configured and that links from the old site point to the new one. Refer to the website migration documentation in the...
Google Jun 24, 2021
★★★ Are Late 301 Redirects Really Effective in Preserving SEO Authority?
If the old content still exists and a copy is created on a new URL, Google can automatically transfer the signals even without a redirect. If the content is deleted and then moved, Google loses the si...
John Mueller Jun 04, 2021
★★★ How Do Redirects Actually Impact Your Core Web Vitals Scores?
John Mueller indicated during a webmaster hangout that redirecting one URL to another will also transfer the Core Web Vitals scores (LCP, FID, CLS) before they are recalculated for the new URL......
John Mueller May 31, 2021
★★★ How does Google handle meta refresh redirects?
Google can understand meta refresh redirects without the need to execute JavaScript. This method is preferable to JavaScript redirects for static sites as it is detected earlier in the crawling proces...
Gary Illyes May 27, 2021
★★★ How do redirects really impact your SEO metrics?
When Google encounters a redirect, all search signals are transferred and applied to the new URL, including the Core Web Vitals metrics from the Chrome User Experience Report. Fluctuations are expecte...
John Mueller May 22, 2021
★★★ Can you really deploy thousands of 301 redirects without risking your SEO?
Adding more than 1000 301 redirects at once is totally acceptable and does not affect SEO. It is normal during a rebranding or redesign. The number of redirects is completely irrelevant....
John Mueller May 07, 2021
★★★ Should you really worry about the number of 301 redirects when redesigning your website?
Adding a large number of 301 redirects at once (over 1000) is completely normal and does not have a negative impact, especially during a rebranding or website redesign. The number of redirects is enti...
John Mueller May 07, 2021
★★★ Should you really avoid multiple progressive redirects to protect your SEO?
Restructuring a site with multiple successive redirects (one per month over a year) is poor SEO practice. Each redirect step takes time to process and causes fluctuations. You should redirect directly...
John Mueller May 07, 2021
★★★ Why does Google continue crawling 301 redirected URLs for over a year?
Even after more than a year of a 301 redirect, Google may continue to crawl the old URLs if there are external links pointing to them. However, after a few passes, Google switches the canonical to the...
John Mueller May 07, 2021
★★★ Do affiliate links with 302 redirects really pose a cloaking problem for Google?
For affiliate links, it's crucial to either use a nofollow attribute or block the redirect URL via robots.txt. There is no cloaking issue if the link appears as an internal link to the user but redire...
John Mueller May 07, 2021
★★★ Should you really make all your affiliate links nofollow?
For affiliate links, the key is that they either have a nofollow attribute or that the redirect URL is blocked by robots.txt to avoid transferring PageRank. A configuration with an intermediate URL an...
John Mueller May 07, 2021
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