What does Google say about SEO? /
Domain names represent a foundational element of any SEO strategy, and Google's official statements on this topic provide essential clarifications for search engine optimization professionals. This category compiles all of Google's positions regarding the impact of domain choices on rankings: the influence of extensions (generic vs geographic TLDs), the use of subdomains versus subdirectories, the relevance of exact match domains (EMD), and technical questions related to URL structures. Google has regularly clarified its stance on these aspects, particularly concerning the relative importance of domain names in the ranking algorithm. Understanding these declarations helps dispel persistent misconceptions, such as overvaluing keywords in domains or myths surrounding certain extensions. Official recommendations also cover domain migrations, the use of the www prefix, trailing slash management, and optimal URL architecture. For SEO experts, this information proves crucial when launching new projects, undertaking redesigns, or developing international strategies, enabling informed decisions based on verified facts rather than assumptions. These insights directly impact technical SEO implementation and help align domain strategy with Google's actual ranking factors and best practices for sustainable organic visibility.
Quick SEO Quiz

Test your SEO knowledge in 3 questions

Less than 30 seconds. Find out how much you really know about Google search.

🕒 ~30s 🎯 3 questions 📚 SEO Google
★★ How can you effectively analyze the SEO performance of each section on your website?
For sites divided into sections or directories, exporting Performance data allows you to compare the performance of each section using functions like SPLIT to separate URLs by directory and VLOOKUP to...
Daniel Waisberg Feb 28, 2023
★★ Should You Use Noindex and Nofollow on Redirecting URLs?
A few days ago, William Sears asked Gary Illyes the following question: "Will the noindex and nofollow directives on a redirecting URL be respected or ignored?" He then specified that these directives...
Gary Illyes Feb 28, 2023
★★★ Do All Google Bots Actually Render Your Website's JavaScript?
Not all Google crawlers use the same rendering system, and some bots don't even render websites at all, according to John Mueller. He was responding to a user's question asking whether all crawlers us...
John Mueller Feb 28, 2023
★★ Does a properly executed SEO migration really guarantee zero traffic loss?
If a migration is executed correctly with appropriate redirections, there should theoretically be no traffic loss, as it is simply a matter of redirecting one URL to another....
Lizzi Sassman Feb 23, 2023
★★★ Should you really verify a domain's history before SEO migration?
Before migrating to a new domain, you must verify its history using tools like archive.org. A domain with a problematic past (spam, inappropriate content) can affect SEO even after migration....
John Mueller Feb 23, 2023
★★★ Is a comprehensive URL mapping really the single most critical factor that makes or breaks an SEO migration?
The most important element of a migration is creating a complete map showing where URLs come from and where they go. This map is essential for configuring redirects and verifying that everything has m...
Gary Illyes Feb 23, 2023
★★ Should you really migrate a complex website in phases rather than all at once?
For complex migrations involving multiple domains or TLDs, it is recommended to proceed in phases rather than migrating everything simultaneously. This reduces the risk of organic traffic loss....
Gary Illyes Feb 23, 2023
★★ Can a domain with a problematic past secretly tank your SEO performance for an entire year?
If a site migrates to a domain with a problematic history, even with a correct migration, it can take up to a year for the situation to stabilize completely in search results....
John Mueller Feb 23, 2023
★★★ Should you really avoid combining domain migration and complete redesign at the same time?
It is strongly inadvisable to combine a domain migration with a complete site redesign and URL restructuring. The more simultaneous changes you make, the greater the risks of errors and difficulties i...
Gary Illyes Feb 23, 2023
★★★ Have EMD Domain Names Become a Liability for Your SEO?
John Mueller confesses: he's not really a fan of EMDs (Exact Match Domains) which, according to him, can potentially compromise a site's sustainability. In addition to appearing as a spammer in everyo...
John Mueller Feb 20, 2023
★★★ Can You Really Use a 301 Redirect Between Pages in Different Languages?
In a brief conversation posted on Mastodon, Gary Illyes from Google indicated that the 301 redirect (permanent redirect) was required when two URLs are almost identical. So far, nothing new. But where...
Gary Illyes Feb 20, 2023
★★ Is it true that the order of tags in an XML sitemap doesn't matter to Google?
In an XML sitemap, the order of tags (URL, last updated date, frequency, priority) is not important. Only the URL is mandatory. If Search Console processes the sitemap correctly, there are no issues e...
Google Feb 09, 2023
★★ Could removing obsolete URLs from your sitemaps actually boost your SEO?
It is recommended to gradually remove obsolete URLs from XML sitemaps instead of keeping them indefinitely. This facilitates management and reduces the size of sitemap files over time....
Google Feb 09, 2023
★★ Do your JSON files really need to be indexed?
For resource files (like JSON files used by JavaScript), there's no need to make them directly accessible via URL if Google can read them through JavaScript. There's no need for specific configuration...
Google Feb 09, 2023
★★★ Why should you keep old URLs in the sitemap after a 301 redirect?
When changing URLs with 301 redirects, it is advisable to keep the old URLs in the XML sitemap until they disappear from Google's index. Once they are indexed under their new URL, they can be removed ...
Google Feb 09, 2023
★★★ Should You Really Always Use Absolute URLs in Your Canonical Tags?
Gary Illyes explained on LinkedIn that "canonical" tags on a website should contain absolute addresses (https://www..com/20230203-51450-quand-les-quality-raters-de-google-manifestent-pour-etre-mieux-p...
Gary Illyes Feb 06, 2023
★★★ Why does Google recommend testing in real conditions rather than relying solely on documentation?
When facing unexplained issues or unexpected behaviors, creating controlled experiments with test domains allows you to understand Google's actual behavior rather than relying solely on documentation ...
Martin Splitt Feb 01, 2023
★★★ Is your JavaScript really being rendered by Google? Here's how to verify it with the honeypot method.
To verify whether Google is correctly rendering your JavaScript, create links accessible only via JavaScript that point to unique URLs, then analyze your server logs to confirm that Googlebot accesses...
Martin Splitt Feb 01, 2023
★★★ Why does Google take 3 to 6 months to index JavaScript content after crawling your site?
Even when Google crawls a JavaScript site quickly (a few weeks for 50-100K URLs), full processing and indexation of rendered content can take 3 to 6 additional months before being reflected in search ...
Martin Splitt Feb 01, 2023
★★ Do you really need to request removal of redirected URLs from Google's index?
After moving content with 301 redirects, there is no need to request the removal of old URLs from the index. This happens automatically over time. If old URLs appear in specific searches, this is norm...
John Mueller Jan 31, 2023
🔔

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.