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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★★★ Should you block duplicate content using robots.txt?
Using robots.txt to block duplicate content is not optimal, as it prevents Google from recognizing and filtering duplicates. It is better to have a clean URL structure and use 301 redirects or canonic...
John Mueller Oct 10, 2014
★★★ Should you really use rel="canonical" on every page?
Google recommends using the rel="canonical" tag to indicate the preferred URL you want indexed. It is crucial that the pages linked by this tag are equivalent in content, in order to avoid frequent er...
John Mueller Oct 10, 2014
★★★ Should you really double up on 301 redirects and canonicals to migrate to HTTPS?
For a transition from HTTP to HTTPS, it is advisable to use both 301 redirects and canonical tags to help Google understand the change....
John Mueller Oct 09, 2014
★★★ Why is Google warning you about your mobile redirects in the SERP?
Google shows warnings in search results if a site incorrectly redirects mobile users, for example, to the homepage instead of the specific page requested....
John Mueller Oct 09, 2014
★ Does blocking redirects in robots.txt really eliminate their SEO impact?
Blocked redirects in robots.txt do not necessarily prevent their SEO impacts. If there's a chance that such a link may become relevant, use a nofollow rather than blocking it in robots.txt....
John Mueller Oct 06, 2014
★★★ How long does it really take for a site migration to stabilize its Google rankings?
A proper site migration with 301 redirects typically takes about one to two months for rankings to stabilize, but this depends on technical and quality factors....
John Mueller Sep 26, 2014
★★★ Do 301 redirects really keep your rankings intact when migrating domains?
When you change your site's domain with appropriate 301 redirects, it signals to Google that the resources remain the same and only the URL has changed. This should help maintain your rankings, except...
Google Sep 25, 2014
★★★ Should you unlock JavaScript in robots.txt for mobile SEO?
Mobile sites using redirects via JavaScript may be blocked by robots.txt, preventing Google from detecting the redirects to the mobile version. John Mueller suggests not to block essential scripts via...
John Mueller Sep 22, 2014
★★ Should you really use hreflang between canonical versions in HTTP and HTTPS?
For hreflang with HTTP and HTTPS versions, Mueller recommends using hreflang between the canonical versions and employing rel=canonical for preferred version selection....
John Mueller Sep 22, 2014
★★★ Does switching to HTTPS really lead to a decrease in SEO traffic?
Switching to HTTPS should not cause a noticeable loss of traffic. If a long-term decline is observed after a HTTPS migration, it may indicate an issue that needs to be checked....
John Mueller Sep 22, 2014
★★★ Do 301 redirects really transfer ALL SEO signals to the new URL?
Google handles 301 redirects by transferring as many signals as possible from the old URL to the new one during a site change or when moving to HTTPS. This process includes disavow files without start...
John Mueller Sep 12, 2014
★★★ How long should you really keep your 301 redirects after a migration?
Changing the URL structure requires maintaining 301 redirects for at least six months to ensure proper transfer of ranking signals. This can be stopped once the old URLs no longer receive traffic....
John Mueller Sep 12, 2014
★★★ Does switching to HTTPS really boost your site's ranking?
Switching to HTTPS may have a slight impact on ranking, but this must be done with a 301 redirect to be considered in indexing and ranking....
John Mueller Sep 08, 2014
★★★ Could incorrect mobile redirects be hurting your visibility on Google?
Google penalizes pages with incorrect mobile redirects, which can lead to diminished visibility for the individual affected pages in mobile searches....
John Mueller Sep 08, 2014
★★★ Do you really need to resubmit your disavow file after an HTTPS migration?
When transitioning a site from HTTP to HTTPS, it is recommended to transfer and resubmit the disavow file to ensure that all unwanted signals are taken into account....
John Mueller Sep 08, 2014
★★★ Why is HTTPS still considered a minor ranking factor even though it is mandatory?
Migrating to HTTPS must be carefully planned to avoid slowdowns. HTTPS is a light ranking factor....
John Mueller Aug 29, 2014
★★★ Is it true that a simple visual redesign can drop your Google rankings?
A complete site redesign, even if the URLs and main content remain unchanged, can lead to fluctuations in rankings, both positive and negative....
John Mueller Aug 25, 2014
★★★ Why are canonicalization and 301 redirects crucial for your crawl budget?
To prevent Google from treating different versions of the same site as distinct, ensure proper configuration of canonicalization, particularly with the rel=canonical attribute and 301 redirects to a s...
John Mueller Aug 25, 2014
★★★ How can you effectively handle duplicate content uploaded to the wrong domain?
If you have mistakenly uploaded content to the wrong site, it is advisable to remove the incorrect content and redirect with a 301 if it has lasted long enough to transfer the signals....
John Mueller Aug 25, 2014
★★★ Is HTTPS really just a light ranking signal, or is it an underestimated opportunity?
Google assesses HTTPS on a page-by-page basis, offering a slight ranking advantage. A complete site migration to HTTPS is recommended whenever feasible....
John Mueller Aug 25, 2014
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