What does Google say about SEO? /
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions

Official statement

Removing or disavowing links takes away their influence on your site. If these links added value, their removal could affect your rankings, but eliminating problematic links remains essential to avoid negative effects.
5:22
🎥 Source video

Extracted from a Google Search Central video

⏱ 1h04 💬 EN 📅 06/05/2016 ✂ 16 statements
Watch on YouTube (5:22) →
Other statements from this video 15
  1. 3:13 JavaScript et Google : pourquoi le rendu reste-t-il inférieur au HTML statique ?
  2. 7:49 Faut-il vraiment mettre nofollow sur tous les liens d'affiliation ?
  3. 11:33 Faut-il vraiment mettre nofollow sur tous les liens issus de sponsoring local ?
  4. 13:56 Faut-il encore se préoccuper du balisage d'auteur pour le SEO ?
  5. 18:04 Google réécrit-il vraiment vos balises title selon les requêtes ?
  6. 20:57 Les liens Ripoff Report pénalisent-ils vraiment votre SEO ?
  7. 24:02 Republier son contenu pour des backlinks : stratégie SEO ou pratique à bannir ?
  8. 27:10 Comment Google gère-t-il l'indexation des URLs issues des PWA ajoutées à l'écran d'accueil ?
  9. 28:53 Réorganiser les mots dans une balise title change-t-il vraiment le classement ?
  10. 36:13 Les redirections massives vers la home lors d'une fusion de sites sont-elles un piège SEO ?
  11. 46:43 Comment Google va-t-il regrouper vos propriétés Search Console et pourquoi ça change tout ?
  12. 49:42 Faut-il vraiment s'inquiéter de la redirection www vs non-www pour le SEO ?
  13. 53:36 Faut-il vraiment un sitemap séparé pour l'indexation mobile-first ?
  14. 55:38 Search Console cache-t-elle des données que Google Search utilise vraiment ?
  15. 56:24 Pourquoi mes fragments riches n'apparaissent-ils pas malgré un balisage correct ?
📅
Official statement from (10 years ago)
TL;DR

Google confirms that removing or disavowing links eliminates their influence on your site, whether positive or negative. If backlinks were adding value, their removal can degrade your ranking. The practical challenge is to accurately identify toxic links before taking action, as blind cleanup can be costly in organic visibility.

What you need to understand

What is Google's official stance on link cleanup?

Google lays down a simple rule: removing or disavowing a link nullifies its impact, whatever that may be. If that link was passing along PageRank and trust, you lose that advantage. If it was toxic spam, you eliminate the risk of penalty.

This statement puts an end to the myth that disavowing links has no effect on rankings. Google explicitly acknowledges that a cleanup can affect your positioning if you remove backlinks that contributed positively to your profile.

Why is this nuance critical for SEO practitioners?

Google's message changes the game: link cleanup is no longer a risk-free action. For years, many SEOs have massively disavowed links as a precaution, believing it could do no harm.

Now, every disavow decision must be carefully considered. A link from a low-authority site that is thematically relevant can be more valuable than a generic link from a large media outlet. Qualitative analysis outweighs raw volume.

How does Google handle problematic links versus neutral links?

Google differentiates between three categories: positive links (which boost), toxic links (which penalize), and neutral links (ignored by the algorithm). The issue is that Google never publicly reveals how it classifies a link into any category.

This opacity forces SEOs to rely on third-party tools (Ahrefs, Majestic, SEMrush) that offer their own toxicity scores. But these metrics are approximations, not certainties. A link judged toxic by a tool may simply be ignored by Google.

  • Removing a link eliminates its influence: whether positive or negative, the effect completely disappears
  • Disavowal is irreversible in its effects as long as the file remains in place
  • Google does not publicly categorize links: impossible to know for sure if a link is toxic before taking action
  • Third-party tools provide estimates, not official Google diagnostics
  • A poorly calibrated cleanup can degrade rankings if valuable links are mistakenly removed

SEO Expert opinion

Is this statement consistent with field observations?

Yes, and it's even refreshing to see Google admit this openly. In the field, we regularly observe drops in rankings following massive disavows. Sites that disavow 70% of their link profile sometimes see their organic traffic drop by 20 to 40%.

The problem is that Google has long downplayed this risk. Previous communications suggested that disavowing neutral links caused no harm. This new position implicitly acknowledges that SEOs were right to be cautious.

What nuances should be added to this rule?

First point: not all links are equal, even among “good” links. A contextual editorial link from a thematic article carries infinitely more weight than a footer link sitewide. Removing the former can hurt, while removing the latter goes unnoticed.

Second nuance: Google states, “eliminating problematic links remains essential,” but provides no precise threshold for defining a problematic link. [To verify] A link from a detected PBN? Yes, toxic. A link from a niche directory with DA 15? Probably neutral, or even slightly positive.

When does this rule not really apply?

If your site has received a manual action for artificial links, you have no choice: Google requires aggressive cleanup to lift the penalty. In this context, losing a few good links is an acceptable collateral damage.

But if you are cleaning up preventively without a declared penalty, the risk-reward calculation changes dramatically. Google algorithmically treats the majority of spam links by ignoring them. Massively disavowing “just in case” can do more harm than good.

Warning: Google does not specify how to identify a “problematic link” unambiguously. Third-party tools use proprietary metrics (Spam Score, Trust Flow, etc.) that do not necessarily reflect Google's analysis. A link marked red in Ahrefs may be completely ignored by Google, and vice versa.

Practical impact and recommendations

What should you do before cleaning your link profile?

Before taking any action, audit your link profile with at least two different tools (Ahrefs + Majestic, or SEMrush + Moz). Compare the results: if a link is marked toxic by only one tool, it is probably neutral. If all tools agree, it's a more reliable signal.

Next, categorize your backlinks into three groups: clearly toxic links (PBNs, link farms, spam), probably neutral links (weak directories, blog comments), and valuable links (editorial, thematic, with traffic). Only disavow the first category.

What mistakes should be avoided when disavowing links?

The classic mistake: massively disavowing all links with low Domain Authority. A small niche blog with DA 20 can send a relevant contextual link that is better than 10 footer links from DA 50 sites that are off-topic.

Second trap: believing that the disavow file is instantly reversible. Google can take several weeks to recrawl the affected pages and recalculate your profile. If you realize that you've disavowed valuable links, reversing it takes time.

How can you measure the impact of a link cleanup on rankings?

Before any disavowal, note your exact positions on your strategic keywords. Use a rank tracker to capture a snapshot of your rankings. Wait 4 to 6 weeks after submitting the disavow file, then compare.

If you notice a drop in rankings, check which links you disavowed: identify the URLs that pointed to your highest-ranking pages. If you removed contextual links to these pages, you likely removed useful PageRank.

  • Audit the link profile with at least two independent tools to avoid biases
  • Categorize backlinks into toxic/neutral/value before taking any action
  • Prioritize disavowing clearly spam links (PBNs, farms, over-optimized anchors)
  • Keep contextual editorial links even if the domain has low DA
  • Measure positions before/after disavowal with a 4 to 6 week delay
  • Document each disavow decision so you can reverse it if necessary

Cleaning up a link profile requires detailed analysis and a rigorous methodology. Acting too quickly can be costly in visibility. If your link profile is complex or if you've received a manual penalty, this task requires sharp expertise and a lot of time. In this case, hiring a specialized SEO agency could save you months and avoid costly ranking mistakes.

❓ Frequently Asked Questions

Le fichier de désaveu affecte-t-il uniquement les nouveaux crawls ou aussi les liens déjà indexés ?
Google recalcule l'impact des liens lors du prochain crawl des pages concernées. Un lien désavoué perd son influence progressivement, pas instantanément. Le délai dépend de la fréquence de crawl de ton site et des pages sources.
Peut-on retirer un domaine du fichier de désaveu si on change d'avis ?
Oui, il suffit de soumettre un nouveau fichier sans ce domaine. Mais Google doit recrawler les pages pour réévaluer les liens, ce qui peut prendre plusieurs semaines selon la priorité de crawl.
Désavouer un lien nofollow a-t-il un impact sur le classement ?
En principe non, puisque Google traite les liens nofollow comme des hints depuis 2019. Mais certains observateurs suggèrent que Google peut quand même les utiliser pour détecter des schémas de spam. En pratique, désavouer du nofollow est rarement utile.
Combien de liens toxiques faut-il avoir pour risquer une pénalité algorithmique ?
Google ne donne aucun seuil précis. L'algorithme évalue le ratio liens naturels/liens artificiels, pas un nombre absolu. Un site avec 10 000 backlinks naturels peut tolérer quelques centaines de liens spam ignorés.
Est-il préférable de contacter les webmasters avant de désavouer leurs liens ?
Google recommande de tenter le retrait manuel avant le désaveu, mais en pratique c'est chronophage et souvent inefficace. Si tu as des centaines de liens toxiques, passe directement au désavou pour les domaines clairement spam.
🏷 Related Topics
Domain Age & History AI & SEO Links & Backlinks

🎥 From the same video 15

Other SEO insights extracted from this same Google Search Central video · duration 1h04 · published on 06/05/2016

🎥 Watch the full video on YouTube →

Related statements

💬 Comments (0)

Be the first to comment.

2000 characters remaining
🔔

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.