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
★★★ Is the Meta Refresh Tag Really Effective for SEO Redirects?
Google has indicated several times in the past that redirections using the "meta refresh" tag should not be used. However, John Mueller mentioned on Twitter last week that it does work anyway, but is ...
John Mueller Mar 05, 2018
★★★ Do old 301 redirects really hurt your SEO?
Inherited 301 redirects, even if they are several years old, do not negatively affect a site's SEO as long as they still exist in Google's index. Google's systems may have a long memory, but this gene...
John Mueller Feb 23, 2018
★★★ Are 301 redirects and canonical tags truly equivalent methods for consolidating your SEO signals?
In SEO, redirecting multiple pages to a single URL can be helpful for concentrating SEO signals. A 301 redirect is similar to using a canonical tag in terms of how Google processes the URL, but each m...
John Mueller Feb 23, 2018
★★★ Can hreflang really fail to target the right language version?
Hreflang is a signal to indicate language or geographic versions but will not prevent a page from displaying if another version is deemed more relevant. A fallback solution like a redirection banner s...
John Mueller Feb 20, 2018
★★★ Do 301 redirects really transfer all SEO signals to the new URL?
When moving content from one URL to another, use a 301 redirect to indicate to Google that the new URL should be considered in place of the old one. This allows for the associated signals to be transf...
John Mueller Jan 23, 2018
★★★ How can you handle the canonicalization of multilingual sites without losing your international traffic?
For multiple language versions of the same site, it is essential to use explicit redirects and rel=canonical tags to guide Google toward the preferred version, especially when the distinction between ...
John Mueller Jan 23, 2018
★★★ Do 301 redirects really transfer all the SEO signals to the new URL?
When you move content from one URL to another, it is recommended to use a 301 redirect. This indicates to Google to focus on the new URL while transferring the signals from the old URL....
John Mueller Jan 23, 2018
★★★ Why Do Site Mergers and Splits Take Google So Much Longer to Index?
John Mueller explained on Twitter that when a website splits into multiple information sources (splitting into several domain names) or conversely, when several sites merge into one, the processing by...
John Mueller Jan 22, 2018
★★★ Should You Really Include All Your Pages in Your XML Sitemap to Maximize SEO?
John Mueller has once again reminded us (as this has been stated several times in the past) that URLs present in the XML Sitemap file are often used by the search engine to define canonical page addre...
John Mueller Jan 15, 2018
★★★ Do 301 redirects really help you maintain your rankings after a migration?
When migrating a website to a new CMS, it is crucial to set up 301 redirects from old URLs to new ones to preserve ranking....
John Mueller Jan 12, 2018
★★★ Should you really avoid the address change tool when merging multiple ccTLDs?
To merge sites with multiple ccTLDs into a single subdirectory, it is advisable to use redirects rather than the address change tool, as the tool requires a strict one-to-one mapping....
John Mueller Jan 09, 2018
★★★ Why does Google de-index pages after an HTTPS migration?
After migrating from HTTP to HTTPS, it is common to see an adjustment in the number of indexed pages. This phenomenon is generally due to Google's recognition that some pages are duplicates and their ...
John Mueller Dec 12, 2017
★★★ Should you really create a new Search Console property when migrating to HTTPS?
When migrating to HTTPS, it is common to create a new property in Google Search Console for the HTTPS site....
John Mueller Dec 01, 2017
★★★ Can 302 redirects actually harm your indexing?
A 302 indicates that the redirect is temporary, so Google might use the original URL for indexing while serving the content from the destination URL....
John Mueller Dec 01, 2017
★★★ Why is Google gradually abandoning pages redirected to error 403?
301 redirects are followed to the final destination. If that leads to an error code like 403, Googlebot will eventually explore those pages less frequently....
Johannes Müller Nov 30, 2017
★★ Should you re-upload your disavow file after migrating to HTTPS?
When migrating a site to HTTPS, it is necessary to add the new HTTPS property in Search Console and re-upload the disavow file so that it applies to the new URLs....
John Mueller Nov 28, 2017
★★★ Should you really redirect ALL URLs during a site migration?
When a site migrates or its URL structure changes, it is essential to implement redirects for all URLs and images to maintain SEO....
John Mueller Nov 14, 2017
★★ Should you really wait until launch day to redirect an old domain to a new one?
In the context of rebranding, it is better to redirect from an old domain to a new one at the time of launch, rather than before, to avoid double redirection....
John Mueller Nov 14, 2017
★★★ Should you really delete expired content or are there more cost-effective alternatives?
For expired content like job listings, it is advisable to remove the content or use a 301 if the content is replaced, otherwise, a 404 or a noindex is appropriate....
John Mueller Nov 03, 2017
★★★ How can you successfully migrate to HTTPS without losing your Google rankings?
Ensure that content is properly redirected to HTTPS and that sitemaps are updated to avoid indexing issues....
John Mueller Nov 03, 2017
🔔

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.