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.
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions
★★★ Redirects or Canonicals: What’s the Real Difference for Category Transfers?
When a product category is moved to a new site, 301 redirects and canonical tags are similar in terms of signal transfer. However, one should expect a ranking reassessment for the new URLs....
John Mueller Nov 30, 2018
★★★ Should you really keep all versions of a site in Search Console after a redirect?
Even if a redirect is in place, it is advisable to keep all versions of your site in Search Console to monitor redirects and potential errors....
John Mueller Nov 29, 2018
★★ Do canonical chains really hinder the consolidation of your SEO signals?
Google can follow canonical chains, but this complicates the concrete determination of the canonical page. Simplify this task by reducing cascading redirects....
John Mueller Nov 29, 2018
★★★ Do client-side redirects really kill your Google indexing?
Client-side redirects with URL parameters can complicate Google's indexing process and create duplicate content. It's better to simplify URLs to facilitate indexing and canonicalization....
John Mueller Nov 27, 2018
★★★ Does switching your TLD really affect your organic visibility?
Changing TLDs (e.g., from .travel to .com) with a clean redirect should not significantly affect visibility, provided the migration is well executed....
John Mueller Nov 13, 2018
★★ Do 301 Redirects Between Unrelated Pages Really Lose All Their PageRank?
John Mueller provided more information during a hangout on how a 301 redirect passes "link juice" (PageRank) from one page to another. He initially indicated, as was already known, that 301 and 302 re...
John Mueller Nov 05, 2018
★★★ Do redirect chains really kill your link equity?
Mueller clarifies that 301 or 302 redirect chains do not necessarily lead to a loss of link equity, but they can affect user experience and loading speed, especially on mobile. It is recommended to op...
John Mueller Oct 19, 2018
★★★ How long could a 503 code jeopardize your indexing?
An HTTP 503 response can be temporarily used for technical issues, but Google will eventually remove the pages after several days if the error persists. It's advisable to handle any site migration con...
John Mueller Oct 05, 2018
★★★ Should you really migrate your site in sections to avoid duplication problems?
When migrating a site, it is advisable to gradually transfer while keeping distinct parts of the site to minimize the SEO impact....
John Mueller Oct 05, 2018
★★★ Should you really keep your URLs during a site migration?
During a site migration, it is advisable to keep the existing URL structure before proceeding with other changes to allow for a faster transfer of signals and reduce fluctuations....
John Mueller Sep 26, 2018
★★★ Why Will the Mobile First Index Transition Take Several More Years to Complete?
John Mueller explained during a hangout that even though many webmasters have received messages in recent days indicating that their site has been validated in the Mobile First Index (MFI), the migrat...
John Mueller Sep 24, 2018
★★★ Should You Really Exclude All Redirected URLs from Your XML Sitemap?
John Mueller has said it repeatedly in the past: when you create your XML Sitemap files, don't include any redirected URLs (301 or otherwise). He reiterated this on Twitter recently. Google uses this ...
John Mueller Sep 03, 2018
★★★ Should You Really Redirect All Old URLs to the Homepage During a Migration?
John Mueller had already said this in the past. He reiterated it once again in a hangout: redirecting all the old URLs of a site to the homepage (particularly during a migration with massive changes t...
John Mueller Sep 03, 2018
★★★ Which HTTP Redirect Should You Use During HTTPS Migration to Preserve Your SEO?
John Mueller indicated during a hangout that "Google strongly recommends 301 redirects during an HTTPS migration", and therefore to move URLs from HTTP to HTTPS, when he was asked about 302 or 303 red...
John Mueller Aug 27, 2018
★★★ Why does redirecting all your pages to the homepage during migration ruin your SEO?
During migrations, avoid directing all pages to the homepage. 301 redirects must be page-specific to preserve SEO equity....
John Mueller Aug 24, 2018
★★★ Are 301 redirects always necessary for an HTTPS migration?
Google strongly recommends using 301 redirects when transitioning from HTTP to HTTPS to indicate a complete site move. This facilitates the transfer of signals and avoids individual URL processing....
John Mueller Aug 24, 2018
★★★ How can you successfully execute a domain migration without losing your organic traffic?
It is crucial to carry out the redirects in a domain migration consistently and thoroughly to avoid prolonged traffic losses....
John Mueller Aug 24, 2018
★★★ Why could your HTTPS migration disrupt your Google indexing?
HTTPS migrations are independent of algorithm updates. They must be performed properly with clear 301 redirects page by page to avoid indexing fluctuations....
John Mueller Aug 24, 2018
★★★ Should You Really Force Google to Crawl Faster During an HTTPS Migration?
Gary Illyes indicated on Twitter that, in the case of an HTTPS migration, there was no reason to implement specific actions to obtain faster crawling from Google. The migration will be taken into acco...
Gary Illyes Aug 20, 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
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.