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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★★ Could a 302 redirect sabotage your responsive migration?
When transitioning from separate mobile URLs to a responsive design, it is advisable to use 301 redirects instead of 302 to avoid caching issues that could send users to the wrong version....
Google Nov 06, 2019
★★★ Can 301 redirects really drop your rankings after an algorithm update?
301 redirects do not cause ranking drops after major algorithm updates. A site can lose visibility if the algorithms determine that its relevance for certain queries has changed....
John Mueller Nov 01, 2019
★★★ Why is it absolutely critical to preserve your URLs during a relaunch for your SEO?
During a site relaunch, it’s best to keep old URLs as much as possible. If URL changes are necessary, use appropriate redirects and provide sitemaps to help Google understand the modifications....
John Mueller Oct 31, 2019
★★★ How long do ranking fluctuations really last after a website redesign?
When redesigning a website, expect ranking fluctuations that may last several months. Be prepared to monitor redirects and internal links to prevent traffic loss....
John Mueller Oct 04, 2019
★★★ Should you really abandon separate mobile URLs (m.site.com) for SEO?
Google recommends creating clear links and redirects between mobile and desktop versions when using separate mobile URLs. However, it is preferable to opt for sites with a single unique URL, either re...
John Mueller Oct 04, 2019
★★★ Is it really necessary to consolidate your content on a single domain to rank?
Using redirects or rel=canonical between old and new domains transfers ranking signals. Google advises consolidating relevant content under a single domain to enhance its authority....
John Mueller Oct 03, 2019
★★★ How Does Google Adjust Its Crawl Rate During a Server Migration?
John Mueller published a new #AskGoogleWebmasters video where he explains that the only thing that changes when you move a site from one server to another is the speed at which GoogleBot crawls that c...
John Mueller Sep 30, 2019
★★ Are timed redirects reliable for SEO?
Googlebot may or may not capture timed redirects, like those that trigger after 30 seconds, which may not be seen as a reliable method....
John Mueller Sep 27, 2019
★★ Is it true that your images are all indexable without a robots.txt file?
The absence of robots.txt files means Google can crawl images. An image redirection can lead to restrictions if the redirected destination is blocked....
John Mueller Sep 26, 2019
★★★ Does Googlebot really adjust its crawl rate during a server migration?
During a server migration, Googlebot automatically adjusts the crawl frequency to avoid overwhelming the new server. This process occurs automatically: Googlebot initially reduces its crawl speed and ...
John Mueller Sep 24, 2019
★★★ Can a server migration really be invisible to Google?
During a server migration where everything remains identical (URLs, content, CMS), Google sees this as an event with no major consequences for SEO. The main requirement is to ensure that everything re...
John Mueller Sep 24, 2019
★★★ Splitting or merging a site: why doesn’t Google transfer SEO value like it does with a simple move?
When a site is split into several new sites or several sites are combined, Google must reevaluate the whole, which is different from a simple domain transfer where redirects can effectively transfer a...
John Mueller Sep 20, 2019
★★★ Do you really need to use JavaScript to redirect URLs with fragments (#)?
To change your URL structure, use JavaScript to create client-side redirects because server-side redirects do not work after the hash symbol, which is handled in the browser....
John Mueller Sep 17, 2019
★★★ How Does Google Actually Choose Which Canonical URL to Index When Multiple Versions Exist?
John Mueller, in a new video from his #AskGoogleWebmasters channel, explains how Google selects canonical URLs. Indeed, in many cases, the search engine identifies a page offering given content (or si...
John Mueller Sep 09, 2019
★★★ Can a website migration really happen without any loss in rankings?
Website migrations can be tricky, especially when they involve changes in domains or site structure. If the migration is done well, with appropriate redirects and no significant changes to the content...
John Mueller Sep 06, 2019
★★ Should you really implement device-based redirection between mobile and desktop?
For websites using distinct URLs for mobile and desktop versions, Google recommends maintaining a connection between the versions with appropriate device-type based redirections. This ensures better r...
John Mueller Sep 06, 2019
★★★ Is it really necessary to use the address change tool for migrating subdomains?
Site migrations can be handled without the Search Console's address change tool by correctly using 301 redirects....
John Mueller Sep 04, 2019
★★★ Why does Google sometimes show M-Dot URLs in desktop results?
With mobile-first indexing, it's possible for Google to show M-Dot versions in desktop results if redirects are not properly implemented....
John Mueller Sep 04, 2019
★★★ How does Google really decide the canonical URL for your pages?
Google chooses a canonical URL based on two main criteria: the site’s preference and the utility for the user. To indicate the site's preference, one can use the link rel=canonical annotation, redirec...
John Mueller Sep 04, 2019
★★★ Can Google really ignore malicious redirects pointing to your site?
Google is capable of detecting malicious redirects from suspicious domains targeting a competitor and generally ignores these links to prevent any negative impact on the targeted site....
John Mueller Aug 22, 2019
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