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 301 redirects really transfer 100% of link signals to a new domain?
When changing a domain, it's normal to see backlinks associated with the old domain in Search Console. However, link signals are transferred to the new domain if the redirects are properly configured....
John Mueller Nov 02, 2017
★★★ How does URL consistency in your sitemap really affect your indexing?
To improve your site's indexing, use consistent URLs in the sitemap file and ensure that redirects, canonicals, and internal links point to these consistent URLs. This will facilitate better utilizati...
John Mueller Oct 31, 2017
★ Should You Use Search Console's "Change of Address" Tool for HTTPS Migrations?
When migrating a site from HTTP to HTTPS, it is necessary to set up 301 redirects from the old address to the new one. Oddly enough, in Search Console, the "Change of Address" function does not accoun...
John Mueller Oct 23, 2017
★★★ Should you really update all your old HTTP redirects during an HTTPS migration?
During an HTTPS migration, it is not necessary to immediately update old redirects from HTTP to HTTPS, especially if they are over two years old and only result in a double redirect (from HTTP to HTTP...
John Mueller Oct 17, 2017
★★★ Why are your perfect redirects not enough to save your SEO migration?
During a major site migration or internal restructuring, executing redirects correctly is crucial. You may notice a period of ranking fluctuation, even if the redirects are perfectly implemented....
John Mueller Oct 17, 2017
★★★ Should you really prefer the 503 code over 404 during maintenance?
If your server is under maintenance and Googlebot encounters a lot of 404s, consider using an HTTP status code 503 instead of 404 to indicate that the content is temporarily unavailable....
John Mueller Oct 17, 2017
★★★ Can an HTTPS Migration Really Be Achieved Without Losing SEO Traffic?
Gary Illyes and John Mueller confirmed on Twitter that a migration from HTTP to HTTPS does not imply a drop in website traffic after this action......
John Mueller Oct 16, 2017
★★★ Do IP redirects really block the indexing of your international sites?
When targeting international markets with subdomains, it's essential to avoid IP redirects that could prevent Googlebot, which primarily operates from the United States, from indexing region-specific ...
John Mueller Oct 06, 2017
★★★ Is migrating to HTTPS easier than you think for SEO?
During a migration to HTTPS, if the URLs and parameters remain unchanged, it is a relatively simple change for Google, often faster than significant structural changes or domain name changes....
John Mueller Oct 06, 2017
★★ Has Google Really Made HTTPS Migration Instantaneous?
Gary Illyes indicated, again at the Brighton SEO conference, that during a migration from HTTP to HTTPS, there should now be virtually no transition period (and therefore no drop) in a site's rankings...
Gary Illyes Sep 25, 2017
★★★ Do 301 redirects really kill your PageRank?
301 redirects no longer dilute 'link juice', so when a redirect is necessary for a well-configured site, it should not negatively affect its ranking....
John Mueller Sep 22, 2017
★★★ Do 301 redirects still lose PageRank in SEO?
301 redirects no longer result in significant link juice loss. It is recommended to migrate a site to HTTPS all at once instead of in multiple steps to facilitate Google's processing....
John Mueller Sep 22, 2017
★★★ Should you migrate your website to HTTPS all at once or in stages?
When migrating to HTTPS, it is best to make the transition all at once instead of in multiple steps because this helps Google recognize the change and index it more quickly....
John Mueller Sep 22, 2017
★★★ Do website redesigns always lead to ranking drops?
After significant changes to a website, such as a redesign or URL change, it is normal to see fluctuations in rankings, as Google needs to reevaluate the site....
John Mueller Sep 22, 2017
★★ Are ranking fluctuations really tied to your old site migration?
Ranking fluctuations on specific keywords can be due to multiple reasons, such as personalization or low impressions. This should not be related to a site migration carried out more than two years ago...
John Mueller Sep 19, 2017
★★★ How can you prevent indexing collapse during a website migration?
During a migration, redirect all old pages to the new site and let Google crawl those redirects. Avoid frequently switching between old and new content, as this complicates indexing....
John Mueller Sep 08, 2017
★★★ Should you really avoid changing the structure of your URLs?
Any change to the structure of URLs triggers a reevaluation by Google. Make sure it is worth it, except for migrations from HTTP to HTTPS....
John Mueller Sep 07, 2017
★★★ Should you really automate language redirections for your multilingual website?
You can automatically redirect users based on language or allow them to choose from a selection page. Ensure that language versions remain crawlable....
John Mueller Sep 07, 2017
★★★ Do image redirections to HTML pages pass on PageRank?
Google does not transfer signals from an image redirection to an HTML page. Images and HTML pages are treated differently in indexing....
John Mueller Sep 07, 2017
★★★ Does the 'Unavailable After' tag really allow you to schedule a page's removal from Google's index?
The 'Unavailable After' tag is swiftly processed by Google to remove pages on a defined date, useful for time-sensitive content....
John Mueller Sep 07, 2017
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