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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★★★ Why can your 301 redirects to the homepage be treated as soft 404s?
When many URLs redirect to a single page, such as a homepage, Google may treat this as a soft 404 if the contents don't match. Better control is achieved with more targeted redirects....
John Mueller Nov 24, 2016
★★★ Should you sacrifice one site to save another with a 301 redirect?
John Mueller suggests choosing the site that receives the most traffic if two sites are in competition. If necessary, it is advised to utilize the stronger site during critical periods, such as Christ...
John Mueller Nov 15, 2016
★★★ Do 301 redirects really harm your site's ranking?
John Mueller explains that 301 redirects can cause temporary fluctuations in rankings, but these fluctuations usually stabilize quickly. He recommends conducting a site move properly when transitionin...
John Mueller Nov 15, 2016
★★★ Should you really avoid changing the URL structure during a site migration?
During a site migration, try to avoid changing the URL structure if possible, as this adds additional complexity for Google to index the site correctly....
John Mueller Nov 04, 2016
★★★ Is it really necessary to migrate your domain and switch to HTTPS all at once?
If you need to migrate to a new domain, it is recommended to switch directly to HTTPS during this migration to avoid making two separate changes that would each cause short-term fluctuations....
John Mueller Nov 04, 2016
★★★ Should you really migrate to HTTPS at the same time as changing your domain?
When migrating a domain, it is best to switch to HTTPS at the same time to avoid multiple fluctuations in search results and simplify the migration process....
John Mueller Nov 04, 2016
★★ Should you really redirect brands without products using a 302, or is a 404 a better choice?
You can temporarily redirect users with a 302 redirect for a brand without products to another category instead of showing a 404 page....
John Mueller Nov 01, 2016
★★★ Why does changing the URL structure during an HTTPS migration break your SEO?
When migrating to HTTPS along with a URL structure change, Google has to relearn what the site is. It is recommended to choose a time with low dependence on search traffic to avoid marked fluctuations...
John Mueller Nov 01, 2016
★★★ Should you really use a 302 before a 301 during an HTTPS migration?
When migrating to HTTPS, it is possible to start with a 302 redirect for testing, then move to a 301 once committed. This allows for a smooth transition and prevents client-side caching....
John Mueller Nov 01, 2016
★★★ How Long Should You Really Keep a 301 Redirect Active?
John Mueller said it last year: a 301 redirect should be kept in place for at least a year, if not longer. In fact, the idea is primarily to measure traffic to the old URL. As soon as it becomes zero ...
John Mueller Oct 24, 2016
★★★ Should you really keep 301 redirects for a year after moving your site?
For a site move completed with a 301 redirect, it is recommended to maintain this redirect for at least a year to ensure that users and Google understand the transition....
John Mueller Oct 18, 2016
★★★ Should you really avoid 301 redirects to the homepage?
301 redirects to the homepage are not recommended because Google often considers them as soft 404 errors. It is better to redirect old URLs to their new equivalent URL....
John Mueller Oct 07, 2016
★★★ Do 301 and 302 redirects really transfer all link signals?
When 301 or 302 redirects are properly configured, Google can transfer link signals from the old URL to the new one, thus preserving rankings....
John Mueller Oct 06, 2016
★★ What happens when you change your template or migrate to HTTPS? Could it really hurt your Google News traffic?
Template changes and migrating to HTTPS can affect Google News traffic if the content is not read correctly by the algorithm. Contact the Google News team if issues arise....
John Mueller Oct 06, 2016
★★★ Should you really redirect every image with a 301 when switching to HTTPS?
When migrating a site to HTTPS, it's ideal to use 301 redirects for images. If images are no longer accessible via their old HTTP URLs, they risk being removed from the Google Images index....
John Mueller Oct 06, 2016
★★★ Should you really keep all your old URLs accessible for SEO?
Old URLs should remain accessible, ideally via redirects, to transfer accumulated signals to their new versions without losing authority....
John Mueller Oct 06, 2016
★★★ How does Google determine the canonical URL when multiple versions lead to the same content?
When multiple URLs lead to the same content, Google typically prefers the shortest and most aesthetically pleasing URL, unless there are redirects or strong internal links pointing to another version....
John Mueller Oct 06, 2016
★★★ Should you really treat HTTPS just like a regular site migration?
Migrating a site from HTTP to HTTPS is similar to a standard site migration. Google has guidance and checklists available to facilitate this process....
John Mueller Oct 04, 2016
★★★ How does Google really transfer signals when changing domains?
During a domain change, Google tries to transfer signals from the original domain to the new domain. This includes links and content. It is important to follow Google's guidelines on domain migrations...
John Mueller Sep 22, 2016
★★★ Does Google really transfer all signals during a domain migration?
During a domain migration, Google attempts to pass all signals from the old domain to the new one, including links. It is advised to follow the guidelines for domain migrations for a smooth transition...
John Mueller Sep 22, 2016
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