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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★★★ Do automatic language redirects hurt multilingual indexing?
It is possible to automatically redirect users to a language version of your site based on their browser settings or location, but you must provide direct access and hreflang tags for each language ve...
John Mueller Jan 27, 2017
★★★ Should you really use a 404 instead of a redirect for missing e-commerce products?
For products that are no longer available, it is better to use a dedicated 404 page rather than redirecting to a category page. This allows search engines and users to understand the situation without...
John Mueller Jan 27, 2017
★★★ How can you migrate your AMP URLs without losing your indexing?
When you change the URL of your AMP pages, for example by moving from a structure with /amp to ?amp=1, make sure to manage redirects and the 'alternate' annotations properly to avoid any negative impa...
Google Jan 26, 2017
★★★ How can you execute an HTTPS migration without hurting your SEO?
When migrating to HTTPS, it is advisable to gradually monitor the effects of the changes, carry out the operation during low traffic periods, and be prepared to respond to problems to ensure a smooth ...
Google Jan 26, 2017
★★★ Should you really create a sitemap for old HTTP URLs when migrating to HTTPS?
It is advisable to create a Sitemap file for old URLs during an HTTP to HTTPS migration to speed up the transfer of SEO signals to the new URLs....
John Mueller Jan 12, 2017
★★★ Do 301 redirects really cause a loss of PageRank and rankings?
When changing URLs with 301 redirects, rankings shouldn’t be affected if they are implemented correctly. The transfer of signals will occur as long as the redirection structure is one-to-one....
John Mueller Jan 12, 2017
★★★ Does Google really prefer hreflang or IP redirection for multilingual sites?
Google recommends using hreflang markup to serve different content by region without considering different IPs for crawling, and to use x-default tags for global redirect pages....
Google Jan 05, 2017
★★★ Should You Use Google's URL Removal Tool During a Site Migration?
The end of the year was, it seems, prolific in somewhat bizarre questions from webmasters, as one user asked on a forum whether the URL removal option in Search Console could help during a site migrat...
John Mueller Jan 02, 2017
★★ What causes unpredictable drops in SEO traffic during a website migration?
During a website migration or redesign, drastic changes in architecture or internal URLs can lead to significant traffic fluctuations while Google reassesses the site....
John Mueller Dec 27, 2016
★★★ Could external redirects to your site really harm your SEO?
Google's systems generally recognize irrelevant redirects from other sites as spam, and this will not negatively affect your site....
John Mueller Dec 27, 2016
★★ Are degraded UX redirects penalized by Google?
Redirects that lead users to a page not aligned with their intentions, such as irrelevant rankings, do not adhere to best practices for user experience. These practices are not explicitly against Goog...
Google Dec 22, 2016
★★★ Should you switch to HTTPS all at once if you have a small site?
Small sites can fully migrate to HTTPS at once, which helps Google crawl and index more quickly. The important thing is to check that the HTTPS version is functioning correctly before the complete mig...
John Mueller Dec 16, 2016
★★★ Should You Change Your URLs During an HTTPS Migration or Prioritize Fast Indexing?
John Mueller himself explained that it's not necessarily a good idea to take advantage of an HTTP to HTTPS migration to change URL slugs (to insert more keywords, for example), because the switch to H...
John Mueller Dec 12, 2016
★★★ Do 301 redirects really pass on 100% of link signals?
When a domain is redirected to another, link signals are passed to the target domain. Use 301 redirects to indicate that the change is permanent....
John Mueller Dec 09, 2016
★★★ Do 301 redirects really enforce the canonical URL to Google?
301 redirect signals are used by Google for canonicalization, but several factors are considered when deciding which URL to display, including canonical tags and internal links....
John Mueller Dec 01, 2016
★★ Why do images slow down your website migration?
During a website migration, it is essential to properly redirect image URLs as well as their corresponding pages. The indexing of images is generally slower, which can prolong the migration process fo...
John Mueller Nov 29, 2016
★★ Should you migrate all subdomains to HTTPS at once or step by step?
To migrate a website with many subdomains to HTTPS, it can be done all at once or in stages. However, it is advisable to first test a part of the site to ensure that everything functions correctly....
John Mueller Nov 29, 2016
★★★ Should you migrate all your subdomains to HTTPS at once or gradually?
When migrating a site with multiple subdomains to HTTPS, you can either migrate all the subdomains at the same time or individually. Google does not differentiate at this level, but conducting a test ...
John Mueller Nov 29, 2016
★★★ Should you really include old HTTP URLs in the sitemap when migrating to HTTPS?
During a migration to HTTPS, it's useful to submit the old URLs in the sitemap, whether on the old HTTP property or the new HTTPS property. This will speed up the re-crawling process and facilitate Go...
John Mueller Nov 29, 2016
★★★ Is it really necessary to maintain two sitemaps during an HTTPS migration?
During an HTTPS migration, it is advisable to maintain your original sitemap with HTTP URLs while creating a new sitemap for HTTPS URLs. This helps Google better understand the migration and reindex p...
John Mueller Nov 29, 2016
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