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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★★★ How does Google really transfer signals during an HTTPS migration?
When transitioning a site from HTTP to HTTPS, if the migration is done correctly, Google can easily transfer all properties from the old site to the new one. In cases of technical errors, such as misc...
John Mueller Jul 27, 2018
★★ Should you enable HSTS immediately when migrating a domain to HTTPS?
When changing domains, set up HSTS only after ensuring that everything works well on HTTPS....
John Mueller Jul 27, 2018
★★★ Should You Notify Google About Site Migrations or Redesigns for Better Crawling?
John Mueller, this time on Twitter, explained that Google does not need a tool allowing webmasters to inform the search engine of major changes to a site, such as during a migration or massive redesig...
John Mueller Jul 23, 2018
★★★ Does the canonical tag really work like a 301 redirect?
The use of the canonical tag is similar to redirects in designating a primary page, but clear signals must be provided to Google to avoid any ambiguity regarding which page to canonize....
John Mueller Jul 20, 2018
★★★ Should you re-upload your disavow file after a domain migration?
During a domain migration, it is crucial to re-upload the disavow file; otherwise, disavowed links could be included in Google's link graph when they are recrawled....
John Mueller Jul 20, 2018
★★★ Do 301 redirects really transfer 100% of PageRank and SEO signals?
When redirecting one URL to another, Google strives to transfer as many signals as possible, including backlinks, to the new URL. However, some signals can remain attached to the old URL....
John Mueller Jul 20, 2018
★★★ How can you reduce signal transfer time during a site migration?
During site migrations, make sure that all URLs clearly redirect to the new version. Avoid crawl errors and eliminate unnecessary blocks in robots.txt to facilitate signal transfer....
John Mueller Jul 20, 2018
★★★ Should you really use 404s instead of redirecting your out-of-stock products?
It is generally better to use a 404 status code for out-of-stock product pages rather than redirecting them to category pages, as redirects do not pass on the relevance of the old content....
John Mueller Jul 20, 2018
★★ Can massive and frequent redirects harm your site's SEO?
Having a large number of redirects on a site due to frequent product or URL changes is not necessarily bad, but ensure they are managed correctly and are not excessive to the point of becoming keyword...
John Mueller Jun 29, 2018
★★★ Why does Google seem to index the wrong version of your URLs?
Ambiguous signals sent by a site can lead Google to index the wrong version of a URL. Clarify the signals (redirects, canonicals, internal links) to indicate your preference....
John Mueller Jun 29, 2018
★★ Are meta refresh redirects really harming your SEO?
Redirecting using meta refresh, especially to payment pages, can harm your ranking because Google often views them as undesirable redirects and risks indexing the destination page instead....
John Mueller Jun 29, 2018
★★★ How can you redirect a restructured page into multiple new URLs without losing its PageRank?
When reorganizing content into several new pages, it is advisable to use a 301 redirect from the old page to the new main page in order to retain the benefits of existing links....
Johannes Mueller Jun 14, 2018
★★★ Should you really keep 301 redirects active for a year after a site migration?
It is recommended to maintain 301 redirects for at least one year when moving sites to ensure that Google understands that the content on the new domain is the same as that on the old one....
John Mueller Jun 12, 2018
★★★ How Long Should You Really Wait After a Website Merger or Split?
John Mueller reminded us in a hangout that when multiple sites merge or "split" (one site broken into several different ones), it can take quite a long time for the search engine algorithms to fully p...
John Mueller Jun 11, 2018
★★★ How long does it really take to stabilize a site after a merger?
In the event of a merger or split of sites, it is necessary to anticipate that the transition will take time, and the results may only stabilize after several months. Proper redirects must be set up t...
John Mueller Jun 01, 2018
★★★ Should you prioritize 301 redirects or canonicals when moving content?
When moving content from a subdomain or a section, use 301 redirects or canonical links to guide Google to the new URL. In the absence of physical redirection, a JavaScript redirect can also be used....
John Mueller Jun 01, 2018
★★ Should you really clean up old redirect chains for SEO?
Google processes information from old redirects and does not require specific actions like forcing a 410: showing old URLs in the info query is normal....
John Mueller May 29, 2018
★★★ Why are image redirects critical when migrating to a new CDN?
When migrating images to a new CDN with different URLs, ensure that you set up redirects from old URLs to new ones. This is crucial because Googlebot does not crawl images as often as pages, and this ...
John Mueller May 18, 2018
★★★ Are sneaky redirects to mobile apps hindering your SEO?
Sneaky redirects that take users to an app when visiting a page through search results are not recommended. Application install banners are preferred....
John Mueller May 15, 2018
★★★ Should you block automatic redirection to the mobile app to protect your SEO?
It is acceptable to redirect users to an installed mobile app, as long as the mobile site is still accessible for users coming from search without forcing them to see an installation screen....
John Mueller May 15, 2018
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