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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★★★ Is it true that 302 redirects pass PageRank?
302 redirects do not cause any negative SEO effects and they pass PageRank. The difference with 301 redirects is that 302 redirects keep the original URL indexed, while 301s result in indexing the des...
John Mueller Nov 07, 2021
★★ Are 302 redirects really just temporary?
If Google detects 302 redirects that are maintained for a long time and considers them not temporary, these redirects will be treated exactly like 301 redirects....
John Mueller Nov 07, 2021
★★ Does Google Really Accept 301s with No-Cache Cache-Control Headers?
Google accepts 301 redirects with no-cache cache-control headers. If it's a 301, it is treated as such, regardless of additional cache headers. Google's crawling system works differently from browsers...
John Mueller Nov 07, 2021
★★★ Why Are Redirects Essential When Changing URLs?
To assist Google in focusing on the new version of a modified website, it is recommended to use redirects from the old URLs to the new ones....
John Mueller Nov 03, 2021
★★★ Is it true that there's no sandbox effect when migrating a site?
There is no such thing as a sandbox effect during a site migration. When Google detects that a site is redirecting all its pages to a new domain, the systems try to process this faster to expedite the...
John Mueller Oct 08, 2021
★★★ Why are redirects to parent pages considered soft 404s?
When Google sees large-scale redirects from subcategories to parent categories, it treats this as soft 404s. There's little SEO difference between redirecting or returning a true 404. The choice betwe...
John Mueller Oct 08, 2021
★★ Could the combination of HTTP/HTTPS actually stem from Google My Business?
If a homepage appears in HTTP but the sitelinks are in HTTPS despite correct canonicalization and 301 redirects in place for a long time, it may stem from an outdated URL in the Google My Business pro...
John Mueller Oct 07, 2021
★★ Should you worry about Google's spam updates affecting your technical issues?
Google's spam updates are focused on truly spammy content or spammy links, rather than technical issues like light keyword stuffing. If a site experiences a drop during a spam update after a redesign,...
John Mueller Oct 01, 2021
★★ Should You Choose Meta Refresh or JavaScript for Your SEO Redirections?
For redirections, it is preferable to use server-side redirections or meta refresh rather than JavaScript. The meta refresh is recommended as it does not require rendering and is supported by most bro...
Gary Illyes Sep 30, 2021
★★ Why does Google keep crawling old URLs even after a redirect?
Even after 1 year of redirection and complete transfer of signals, Googlebot continues to request the old URL. This is normal: Google periodically checks for new content or whether the redirect is sti...
Google Sep 30, 2021
★★★ Does it really take a year for PageRank to fully transfer after a 301 redirect?
After about one year of a 301 redirect, the transfer of signals (PageRank) to the new URL is complete. You can then remove the redirect. This duration is indicative (it could be faster), but one year ...
Google Sep 30, 2021
★★ Is it true that Google migrates sites to mobile-first indexing in massive waves?
The MFI migration occurs in batches of several million sites at a time, not site by site. If your site hasn't been migrated yet while being technically ready, that's normal. Just wait for your turn; n...
Google Sep 30, 2021
★★ Should you really worry about migrating between subdomains?
<p>Switching from one subdomain to another on the same domain is relatively simple and should take about a week for a medium-sized site, provided that the redirects are set up correctly.</p>...
John Mueller Sep 26, 2021
★★ How does Google view window.history.pushState in terms of SEO?
When a page uses window.history.pushState to change the displayed URL, Google likely treats this as a redirect and associates the content with the modified URL instead of the original URL....
Martin Splitt Sep 22, 2021
★★★ Should you really use Google's address change tool?
The address change tool in Search Console is just an additional signal, not a requirement. If 301 redirects are set up correctly, the migration will work without using this tool....
John Mueller Sep 17, 2021
★★ Why do index updates take so long?
The index coverage report in Search Console is updated approximately twice a week. Redirects and page mergers may take longer to appear because Google must first determine the canonicalization....
John Mueller Sep 17, 2021
★★★ Should You Really Change Your Website's URL Structure?
The effect of URL structure (dashes, underscores, descriptions) is so minimal that it's not worth making major modifications on an existing site. Changes create fluctuations for months for a final out...
John Mueller Sep 10, 2021
★★★ Should you expect traffic drops when migrating from .com to .co.uk?
Migrating from a .com domain to a .co.uk involves automatic geotargeting towards the UK. Traffic fluctuations are normal during this change, particularly if the content is also altered. With a .co.uk,...
John Mueller Sep 03, 2021
★★★ How can you effectively manage website mergers without facing SEO penalties?
When merging websites, there is no penalty for migrating gradually or all at once. For site merges and separations, incremental migration is acceptable, unlike traditional domain changes....
John Mueller Sep 03, 2021
★★★ How does window.history.pushState affect SEO indexing?
When window.history.pushState occurs during page loading, Google treats it as a redirect. The modified URL is the one Google considers for indexing. However, server-side redirection remains preferable...
John Mueller Aug 28, 2021
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