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.
★★★ Why Is It Perfectly Normal to Temporarily Lose Rankings After an HTTPS Migration?
The owner of a 15-year-old financial website panicked after losing his top 3 Google rankings following an HTTPS migration. He had also changed his WordPress theme and updated his content, and was wond...
John Mueller Mar 24, 2026
★★★ Should you really upload your disavow list only on the current domain?
For the link disavow tool, the list must be uploaded only to the Search Console property of the current domain. If a redirect is properly configured, Google transfers link signals to the new domain. N...
Google Mar 05, 2026
★★ Can a misconfigured 301 redirect actually block your pages from being indexed?
A poorly configured 301 redirect is often the cause of indexation problems or content update failures in search results. Consult official documentation on redirects and Google Search....
Google Mar 05, 2026
★★★ How can you accurately verify redirect behavior for Googlebot?
To verify redirect behavior specifically for Googlebot, the most reliable method is to examine server logs and response headers for the Googlebot user-agent. Also check firewall rules, CDN, or IPs har...
Google Mar 05, 2026
★★ Should You Really Analyze All Redirects and CSP Configurations to Optimize Your SEO?
John Mueller advises against spending too much time analyzing redirects and CSP (Content Security Policy) parameters for every URL on a website to optimize search engine rankings. His argument: Bad re...
John Mueller Feb 10, 2026
★★ Do 404 Errors Really Hurt Your Website's Rankings?
On Reddit, in response to a user, John Mueller explained that 404 errors had no impact on SEO, providing some clarifications: 404: The URL is not indexed; it is an invalid URL, which is normal. It sho...
John Mueller Jan 06, 2026
★★★ Should You Really Migrate Your Entire Site to Preserve Your SEO?
In an exchange with a user on Bluesky, John Mueller clarified his position on using the address change tool in Search Console during a non-standard migration. When asked whether the address change too...
John Mueller Dec 23, 2025
★★★ How Should You Handle Migrating a Website Between Two Different Domain Extensions?
A company would like to move most of its site to the .co.uk TLD, but keep a portion on its old .digital TLD for certain marketing campaigns. Here is John Mueller's advice: first, perform a migration f...
John Mueller Nov 11, 2025
★★★ What are the technical priorities Google really wants you to audit first?
Aspects to verify during an audit include: routing or network issues, HTTP headers and metadata, redirect chains or loops, canonicalization and internal link issues, as well as markup and rendering pr...
Martin Splitt Nov 06, 2025
★★ Should you really redirect your private pages to marketing content rather than straight to a login form?
A best practice is to redirect private URLs to informative marketing pages rather than to a simple login page. Example: Search Console redirects to marketing pages with a link to sign in....
John Mueller Sep 04, 2025
★★★ How Can You Tell a Good Crawler from a Bad One and Why Does It Matter for Your SEO?
Martin Splitt and Gary Illyes recently highlighted the essential attributes of a good crawler: Attributes of a good crawler according to Martin Splitt Support HTTP/2 for better performance and efficie...
Gary Illyes Aug 26, 2025
★★★ Why does Google treat a domain change as a complete site migration?
When you want to move from an old domain to a new domain in Google Search, this constitutes a site migration. This operation requires following the official site migration process documented by Google...
Martin Splitt Jul 09, 2025
★★★ Do you really need to optimize your site differently for AI Overviews and AI Mode?
Sites don't need to do anything special beyond being indexable to be eligible for AI features like AI Overviews or AI Mode. No new structured data, special files for LLMs, or content redesigns are nec...
John Mueller Jul 01, 2025
★★★ Do You Really Need to Know How to Code to Become a Great SEO in 2024?
In the latest episode of the Search Off the Record podcast, Google's Martin Splitt and Gary Illyes addressed the question of the technical level required to work as an SEO professional. Their message ...
Gary Illyes Jun 24, 2025
★★★ Why use Bing to detect off-topic content penalized by Google?
A publisher of an educational site that migrated from javatpoint.com to tpointtech.com experienced a sudden traffic drop and partial de-indexing on Google. Thinking the migration was to blame, they so...
John Mueller Jun 17, 2025
★★★ Should you still worry about choosing between 301 and 302 redirects?
For Google Search, all 3xx redirect codes (301, 302, 307, 308) are treated similarly during crawling. Google slightly takes into account the temporary/permanent distinction for canonicalization, but o...
Gary Illyes May 15, 2025
★★★ Are Your N:1 Redirects Sabotaging Your SEO Migration?
John Mueller explained that a landing page could appear in search results for an e-commerce query, even if it has little content, thanks in particular to the many redirects pointing to it. In the exam...
John Mueller May 06, 2025
★★ Should You Avoid 301 Redirects in Your Hreflang Tags?
According to John Mueller, hreflang tags pointing to pages with a 301 redirect are "probably acceptable." However, he recommends automating hreflang tag configuration to avoid redirects, which also ma...
John Mueller Apr 15, 2025
★★ Should you really return a 404 instead of redirecting to similar content?
You must not redirect to the homepage or to what you think is the closest content. If the content no longer exists, you must signal it clearly with a 404 status....
Google Mar 05, 2025
★★★ Does redirecting 404 errors to your homepage actually kill your search rankings?
Redirecting all 404 pages to your homepage with 301 redirects can negatively impact your rankings and overall site performance in search results....
Google Mar 05, 2025
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