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 does Google treat JavaScript redirects as 302s instead of 301s?
Google treats client-side JavaScript redirects as temporary redirects similar to 302s, not as permanent 301s. It's preferable to avoid them, but not critical if necessary....
Martin Splitt May 18, 2020
★★ Do temporary 404 errors during a migration really kill your SEO?
If pages return temporary 404s during a migration (for a few days) before redirects are set up, Google will recrawl the URLs, see the redirects, and treat them normally. The impact on ranking will be ...
John Mueller May 15, 2020
★★ Does Hreflang Really Ensure Accurate Geographic Targeting for Your International Traffic?
Hreflang is not an absolute directive. It is normal to see traffic from foreign countries landing on language versions that are not intended for those countries. Google recommends using a suggestion b...
John Mueller May 15, 2020
★★ Should you really worry about 301 redirects and multiple 404 pages?
Having a lot of 301 redirects and 404 pages on a site is perfectly acceptable. There's nothing special you need to do with these pages, and there's no need to block them. It's a normal situation with ...
John Mueller May 15, 2020
★★★ Why do old URLs stay indexed after a 301 redirect?
When changing a URL with 301 redirects, Google does not remove the pages from the index: it simply switches from the old URL to the new one as canonical. If traffic massively drops after a migration, ...
John Mueller May 13, 2020
★★★ Are JavaScript redirects truly equivalent to 301 redirects for Google?
There is no 301 redirect on the client side: the 301 code is a server HTTP status. However, you can create a client-side JavaScript redirect. Googlebot follows these redirects and treats them similarl...
Martin Splitt May 12, 2020
★★★ Are 301, 302, and JavaScript redirects really equivalent for SEO?
For Googlebot, there is no practical difference between a 301, 302, or client-side JavaScript redirect. Googlebot follows JavaScript redirects and treats them as normal redirects. There is no client-s...
Martin Splitt May 12, 2020
★★★ Are JavaScript redirects really as effective as 301s for SEO?
Google properly handles JavaScript redirects (window.location.href). They have no obvious disadvantage compared to server-side 301 redirects for Google Search, although they require the crawler to und...
Martin Splitt May 05, 2020
★★★ Is it really a concern for your organic traffic when migrating to a new domain?
A complete domain change with 1:1 redirects is generally handled effectively by Google with no significant loss of ranking. Conversely, splitting or merging sites can lead to more substantial fluctuat...
John Mueller May 01, 2020
★★★ Should you really choose between a fresh start and redirections during a partial migration?
To migrate the best content to a new domain without transferring bad signals, you must choose: either start completely fresh (no redirects/links/reused content) or redirect (and accept the transfer of...
John Mueller May 01, 2020
★★ Should you worry about the 'site being moved' message in the Search Console's address change tool?
The address change tool in Search Console displays 'site being moved' as just a UI reminder for a defined period, not as an indication of a problem. The key is to maintain the redirects for at least 6...
John Mueller May 01, 2020
★★★ Why does Google keep crawling your old URLs after a redesign?
Even after a URL scheme change, Google may still see old URLs if they are still referenced on the web. Make sure all point to the new ones with appropriate redirects....
Martin Splitt Apr 29, 2020
★★★ Are your internal links sabotaging Google’s canonical choice?
Google selects a canonical URL by using various factors, such as rel=canonical, internal and external links, as well as redirects. If the internal links point to non-canonical URLs, it can complicate ...
John Mueller Apr 28, 2020
★★★ Should you really block tracking parameters for Googlebot through cloaking?
Adding tracking parameters for users while blocking them for bots via cloaking is allowed, but it's not a good SEO practice as it complicates the analysis of your traffic and site navigation. It is pr...
John Mueller Apr 28, 2020
★★ Should you really switch from a .com to a .ca to exclusively target Canada?
Redirecting a site from a dot-com to a dot-ca is feasible even if you are targeting only Canada. It will not have a major negative impact if managed correctly....
John Mueller Apr 28, 2020
★★★ Do Google's Internal SEO Teams Really Have Access to Privileged Algorithm Information?
John Mueller explained in one of his "Ask Google Webmasters" video series that Google's SEO spokespeople and, more generally, the team managing the search engine don't provide any information to Googl...
John Mueller Apr 27, 2020
★★★ Should you really clean up all internal links after a 301 redirect?
To help Google focus on the new URL after a 301 redirect, it is advisable to update internal links, sitemap files, and any other references pointing to the original page so that they point to the new ...
John Mueller Apr 22, 2020
★★★ Do 301 redirects really ensure your canonical is recognized by Google?
301 redirects are regarded by Google as a canonicalization signal indicating that you prefer the destination page to be indexed instead of the original page. However, Google employs many other factors...
John Mueller Apr 22, 2020
★★★ Why does Google advise against automatic redirection for multilingual homepages?
Automatically redirecting users to a specific language version can complicate the diagnosis of indexing-related issues....
John Mueller Apr 19, 2020
★★ Why are your domain migrations inexplicably killing your visibility?
During frequent domain migrations, it may happen that signals are not transmitted correctly, which affects visibility....
John Mueller Apr 19, 2020
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