What does Google say about SEO? /
John Mueller is one of Google's most active spokespeople on search engine optimization topics. As a Search Advocate, he regularly answers the SEO community's questions during Google Search Central sessions and on social media. His statements are a prime source of information for understanding how Google Search works and the best practices to follow.
Quick SEO Quiz

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🕒 ~1 min 🎯 5 questions
★★ Are separate mobile URLs (m.example.com) still a viable SEO option?
The configuration with separate mobile URLs (m.example.com) remains fully supported with proper canonical and alternate tags. Google recommends a single version for simplicity but does not enforce thi...
Apr 01, 2021 ⚡ Analysis available
★★★ Can self-referential canonical tags really safeguard your site from URL duplications?
Using a canonical tag pointing to the page itself allows Google to manage URL variations (www/non-www, UTM parameters, etc.) and consolidates indexing on the preferred version even if different URLs e...
Apr 01, 2021 ⚡ Analysis available
★★★ Should you really wait for links to come in 'naturally' or take the initiative?
Google's recommendation is to create exceptional content that will naturally attract links over time. However, it is also advised to be proactive: advertising, reaching out to local press, and activel...
Apr 01, 2021 ⚡ Analysis available
★★ Why does it really take 3 to 4 months for a revamp to be recognized by Google?
After significant qualitative improvements on a site, it takes about 3 to 4 months for Google to recrawl the content and understand that the site has fundamentally changed. The technical recrawl can t...
Apr 01, 2021 ⚡ Analysis available
★★★ Are you truly confident that you don't have any Google manual penalties?
If there is no manual action displayed in Search Console, then there is no manual action applied to the site. Manual actions are always visible in Search Console and can be resolved there....
Apr 01, 2021 ⚡ Analysis available
★★★ How long can you keep a 503 code without risking deindexation?
The 503 server code (temporary error) should be used for no more than a few days, between 2 and 7 days. After this period, Google will start to deindex the affected URLs. There is no exact time limit,...
Apr 01, 2021 ⚡ Analysis available
★★★ Are links really losing their ranking power on Google?
Links are just one factor among many used for ranking. Removing an excess link will not lead to a sudden disappearance of a site because Google relies on multiple ranking signals....
Apr 01, 2021 ⚡ Analysis available
★★★ Should you really clean up your artificial links if Google already ignores them?
Google's algorithms generally detect and ignore artificial or spam links before they are even removed. Therefore, removing links already ignored by Google will have no impact on ranking....
Apr 01, 2021 ⚡ Analysis available
★★ How long can a 503 error last without risking deindexation?
The server code 503 indicates a temporary error. Google recommends not using it for more than 2 to 7 days maximum, after which Google will begin to progressively deindex the affected URLs....
Apr 01, 2021 ⚡ Analysis available
★★★ Should we still use rel=next and rel=previous tags for pagination?
The rel=next and rel=previous tags are ignored by Google. Google's systems can now automatically recognize the current pagination and treat it as standard internal links. These tags can remain on page...
Apr 01, 2021 ⚡ Analysis available
★★ Should you nofollow all editorial links that come from collaborations with experts?
Collaborations where experts contribute to improving content and receive a recognition link are generally acceptable, provided there is no obligation for reciprocity. The issue arises when it becomes ...
Apr 01, 2021 ⚡ Analysis available
★★ Should you really update the publication date after every small change on a page?
Changing the publication date of a page with every small modification (like rearranging images) may seem misleading to users and does not affect rankings. It is better to change the date only during s...
Apr 01, 2021 ⚡ Analysis available
★★★ Should you really worry about the difference between 301 and 302 redirects?
A 302 redirect (temporary) in place for several years will be treated by Google as a 301 redirect (permanent). Google will index the destination page and no value is lost just because it's a 302. Afte...
Apr 01, 2021 ⚡ Analysis available
★★★ Can Removing Links Trigger a Google Penalty?
Removing links is not considered an alarm signal by Google's algorithms. If a site loses visibility due to artificial links and those links are removed, the site will simply lose that artificial suppo...
Apr 01, 2021 ⚡ Analysis available
★★★ What exactly constitutes a natural link according to Google, and how can you avoid risky practices?
A link is considered natural if there is no exchange of value. Forbidden practices include: trading links (I’ll link to you if you link to me), paying for links, or forcing someone to create a link. T...
Apr 01, 2021 ⚡ Analysis available
★★ Are long-term 302 redirects really equivalent to 301s for SEO?
If a 302 (temporary) redirect remains in place for years, Google will treat it as a permanent redirect and index the destination page. No loss of value is associated with the choice between 302 and 30...
Apr 01, 2021 ⚡ Analysis available
★★ Should you really abandon separate mobile URLs (m.example.com)?
Google still supports separate mobile URL configurations (m.example.com and www.example.com) with appropriate canonical and alternate tags. It's no longer recommended for new sites (it's better to hav...
Apr 01, 2021 ⚡ Analysis available
★★★ Does a spammy past really erase its SEO footprint after a decade?
A spammy site hosted on a domain ten years ago will have no residual effects on the current site. Spam effects do not persist after a ten-year hiatus. The only possible effects concern artificial link...
Apr 01, 2021 ⚡ Analysis available
★★★ Can database-generated sites still rank by automatically cross-referencing data?
Creating millions of pages by automatically cross-referencing data (cities × services, for example) is not enough. Algorithms seek unique value beyond the simple compilation of data already available ...
Apr 01, 2021 ⚡ Analysis available
★★ Should you really stop all large-scale repetitive link tactics?
Repeating a link-building tactic with a very large number of sites can be identified as an artificial scheme by Google's webspam team, even if the individual tactic seems legitimate....
Apr 01, 2021 ⚡ Analysis available
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