What does Google say about SEO? /
Domain age and historical factors remain hotly debated topics in the SEO community. This category compiles Google's official statements regarding how domain age, history, and accumulated reputation influence search rankings. SEO professionals frequently question whether the sandbox effect truly exists for new websites, whether older domains hold inherent advantages, and how a site's history impacts current performance—including previous ownership changes, past penalties, and archived content. Google representatives have consistently addressed these concerns, particularly regarding the concept of trust built over time. Understanding these official positions helps practitioners separate persistent myths from actual ranking factors recognized by Google's algorithms. This knowledge proves invaluable when acquiring expired domains, conducting site migrations, or implementing rebranding strategies where historical signals can significantly impact future SEO performance. These declarations provide clarity on what truly matters: quality content and user experience rather than mere domain age, helping SEO specialists make informed strategic decisions based on verified information rather than speculation or outdated assumptions about temporal ranking factors.
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★★★ Are structured data really unnecessary for Google SEO?
Structured data is not a requirement for a page to be indexed or ranked by Google. If a single page on a site lacks structured data or a specific type like mainEntity, it won't be an issue for SEO....
John Mueller Sep 04, 2020
★★★ What happens when you migrate from www to non-www without 301 redirects, and how does it destroy your SEO?
When transitioning from www to non-www (or vice versa), 301 redirects are essential. Without redirects, Google sees the old version as broken and gradually removes it, treating the new version as a co...
John Mueller Sep 04, 2020
★★★ Homepage with URL Parameters: Should You Really Index Multiple Versions or Canonicalize Everything?
A homepage with parameters and one without are two distinct URLs for Google. If the versions are indeed different (personalized content), they can be indexed separately. If they are equivalent, use re...
John Mueller Sep 04, 2020
★★★ Should you really worry when a 404 page turns back to 200?
Changing a 404 page to 200 does not incur any penalty. Google normally reindexes the new content. However, a long-term 404 page gets crawled less frequently (possibly every two months). Thus, repeated...
John Mueller Sep 04, 2020
★★★ Is the URL switch between AMP and canonical HTML capable of really harming your ranking?
Switching from the AMP version to the canonical HTML version (or vice versa) does not change the page ranking. It’s solely a matter of displayed URL. If a drop in ranking coincides with an AMP change,...
John Mueller Sep 04, 2020
★★ Should you reconfigure Search Console every time you migrate from www to non-www?
When changing a prefix (www/non-www), you must verify the new property if the verification is prefix-based. Domain verification avoids this problem. Search Console is not required for the website's op...
John Mueller Sep 04, 2020
★★ Can your staging URLs be indexed even without any links pointing to them?
Even without visible links, development URLs can be discovered by Google through browser extensions that track website popularity or through public mailing lists where developers share links via email...
John Mueller Sep 04, 2020
★★ 404 or noindex for deindexing: which method should you really prefer?
Using 404 or noindex to remove pages from the index produces the same final result. Noindex can be slightly faster, but the difference is negligible at the scale of a site. Choose the most practical m...
John Mueller Sep 04, 2020
★★★ How can you balance internal navigation to maximize both crawling and ranking?
Internal navigation serves two purposes for Google: enabling complete discovery of site pages and understanding which pages are important and how they are interconnected. It is essential to find a bal...
John Mueller Sep 04, 2020
★★★ Does HTTPS really boost rankings in Google Search?
Google Search gives a slight ranking boost to pages that properly use HTTPS. However, this ranking signal remains quite weak and is generally not visible separately from other ranking factors....
John Mueller Sep 01, 2020
★★★ What triggers the same signals as a complete site move when migrating to HTTPS?
Moving from HTTP to HTTPS requires redirecting all users to the HTTPS version via server-side 301 redirects. Google considers this a site migration with a change of URL....
John Mueller Sep 01, 2020
★★★ Should You Include Category Pages in Your XML Sitemap?
In response to a tweet asking whether category page URLs - article or product listing pages - should be included in the XML Sitemap, Fabrice Canel (Bing) answered yes, this file should include all URL...
Google Aug 31, 2020
★★ Why Did Google Remove Regex from Search Console Before Even Launching It?
A few weeks ago, the help documentation for the Search Console "Performance" report indicated that it was possible to use regex (regular expressions to filter data). Then John Mueller and Gary Illyes ...
John Mueller Aug 31, 2020
★★★ Should you really roll back after a site migration fails?
Before contemplating a rollback, it’s essential to diagnose the cause of the issue (missing redirects, crawl problems, technical errors). If after a month no improvement is observed, no explanation is...
Martin Splitt Aug 27, 2020
★★★ How does Google really transfer signals during a domain migration?
When Google crawls the old site and detects the redirects, it checks that the new site is a one-to-one copy of the old one. If that's the case, signals from the old domain are transferred to the new d...
Martin Splitt Aug 27, 2020
★★★ Should you really redirect all images during a site migration?
It is essential to implement 301 redirects for all images during a site migration. Visual content is very important for SEO. Since refreshing in the image index takes time, you should monitor the serv...
Martin Splitt Aug 27, 2020
★★★ Does a domain's purchase history truly hinder an SEO migration?
The history of a domain plays a limited role in a migration. If a purchased domain has been used for spam, it is essential to clean up existing issues, possibly use the disavow file, wait for Google t...
Martin Splitt Aug 27, 2020
★★★ Merging two websites: Why doesn’t Google treat this like a standard migration?
Merging two websites into one is not a standard site migration. It involves creating a new site that combines two existing versions, which requires Google to re-crawl numerous pages. The outcome and p...
Martin Splitt Aug 27, 2020
★★★ Does a domain migration really lead to traffic loss?
A well-executed domain migration does not necessarily result in overall traffic loss. If you simply copy the entire URL structure and content to a new domain, traffic will decrease on the old one and ...
Martin Splitt Aug 27, 2020
★★★ How Does Google Actually Determine the Canonical URL of Your Pages?
John Mueller provided on Twitter a list of criteria that Google takes into account to define what the canonical URL of a page is (and therefore its "canonicalization"): redirects, internal links, exte...
John Mueller Aug 24, 2020
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