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Official statement

Google strongly recommends removing unnatural links to avoid future penalties and maintain brand reputation, regardless of their impact on rankings.
21:07
🎥 Source video

Extracted from a Google Search Central video

⏱ 33:08 💬 EN 📅 06/03/2013 ✂ 7 statements
Watch on YouTube (21:07) →
Other statements from this video 6
  1. 5:17 Comment sortir d'une pénalité manuelle Google sans perdre son temps ?
  2. 8:55 Les rapports de spam des utilisateurs influencent-ils vraiment le classement de votre site ?
  3. 10:30 Faut-il traduire vos demandes de réexamen en anglais pour Google ?
  4. 18:20 Faut-il vraiment corriger les violations des guidelines si elles n'impactent pas encore votre classement ?
  5. 21:04 Google Search Console affiche-t-elle vraiment tous vos backlinks ?
  6. 28:11 Faut-il corriger une pénalité Search Console si vos rankings sont intacts ?
📅
Official statement from (13 years ago)
TL;DR

Google strongly insists that you clean up your profile of artificial links, even if you're not experiencing any visible penalties. The argument is to protect your reputation and anticipate potential future sanctions. For an SEO professional, this raises a clear strategic question: should you invest time and resources into a hypothetical risk, or prioritize other levers with immediate ROI?

What you need to understand

What exactly does Google mean by "unnatural links"?

An unnatural link refers to any backlink obtained with the explicit aim of manipulating PageRank. Specifically: purchased links, excessive link exchanges, poor-quality directories, guest posts on spammy sites, widgets with optimized anchors, automated blog comments.

Google differentiates these links from natural editorial backlinks earned without quid pro quo. The issue is that the line can be blurry in some cases: a legitimate business partnership that generates a link, a one-time visibility exchange between two brands, a compensated but quality editorial collaboration.

Why the emphasis on future penalties?

Google’s stance implies that its algorithm continues to evolve and that links tolerated today could trigger filters tomorrow. This is a preventative rationale: cleaning up now costs less than a manual action or a sharp drop after a core update.

Let’s be honest: this recommendation also serves Google's interests. Less link manipulation means less noise in the link graph and a better quality signal for the algorithm. Additionally, it discourages practices that require costly human oversight for them.

What does "preserving brand reputation" mean in this context?

The reputation argument remains vague. Google suggests that a questionable link profile could erode trust among users or partners who analyze your backlinks. In reality, how many average visitors scrutinize your Ahrefs or Majestic profile? Close to zero.

What matters more is: if your site undergoes a manual action, you will have to publicly disavow links and submit a review request. This process leaves a trace in Search Console and may impact the internal perception (management, investors) of your SEO strategy.

  • Unnatural links: purchase, mass exchange, site networks, automated spam
  • Future risk: algorithm evolution, deferred manual action, strengthened anti-spam filters
  • Reputation: mainly an internal and compliance issue with guidelines, rarely visible to the end user
  • Preventive cost: cleaning time vs hypothetical risk of an untimed penalty
  • Gray area: business partnerships, quality sponsored content, one-off editorial exchanges

SEO Expert opinion

Does this statement align with field observations?

Yes and no. Sites that have undergone manual actions for artificial links do indeed see their traffic drop until they clean up and request a review. That's documented and reproducible. However, thousands of sites maintain questionable link profiles without experiencing any visible sanctions for years.

Google has algorithmic filters (Penguin integrated into the core) designed to automatically downvalue spam links without penalizing the target site. If these filters are working effectively, manual cleaning shouldn't impact rankings since those links are already ignored. But if the filter misses certain patterns, you might experience a temporary artificial boost... until the next update.

What nuances should be considered regarding this recommendation?

First point: not all unnatural links are created equal. A link from a spammy directory with a DR5 is not as risky as a well-constructed PBN network. Google never details thresholds or priority typologies, making the cleanup arbitrary.

Second nuance: the opportunity cost. Spending weeks identifying and disavowing 10,000 low-quality backlinks on an e-commerce site might yield less return than three months of work on internal linking, technical structure, or content. The arbitration depends on the level of actual risk, not a generic recommendation. [To be verified]: Google has never published numerical data on the proportion of penalized sites for links vs. those simply devalued.

In what cases does this rule become truly priority?

If your site has already received a manual action notification in Search Console, then it is non-negotiable. As long as you have not cleaned up and submitted a review request, you remain under filter. If you are considering a fundraising effort, an acquisition, or an external audit, a clean link profile avoids embarrassing questions.

For a new site or one recently revamped, building a strategy for clean editorial links from the start costs less than catching up on years of shortcuts. Finally, if you operate in a highly competitive niche closely monitored by Google (health, finance, legal), the tolerance for gray practices is near zero.

Warning: Massively disavowing links can sometimes cause your rankings to drop if those links, although borderline, still provided some value. Proceed in waves, monitor impacts, and keep a backup of your disavow file.

Practical impact and recommendations

How can you concretely identify risky links on your site?

Export your complete profile from Search Console, Ahrefs, Majestic, and SEMrush. Cross-reference the data to detect common referring domains and anomalies. Filter by Trust Flow < 10, Citation Flow > 40 (imbalanced TF/CF), over-optimized anchors, recently expired domains that have been repurchased.

Manually analyze a sample of 100-200 suspicious links: is the source site's content relevant? Does the link provide editorial value, or does it appear placed solely for SEO? If the page contains 50 outgoing links to unrelated niches, it's a clear red flag.

What cleaning strategy should you adopt to avoid damaging your profile?

Start by attempting to directly remove the most toxic links: contact the webmasters, offer compensation if necessary (yes, sometimes you have to pay to remove a link purchased five years ago). Document each request and follow-up in a spreadsheet with timestamps.

For links that are impossible to remove (dead sites, unreachable webmasters, anonymous networks), compile them into a disavow.txt file and submit it via Search Console. Only add truly problematic domains: disavowing a good link by mistake costs you value without a simple recovery option. Reassess every six months.

What indicators should you monitor after cleaning?

Track your rankings on strategic queries weekly for three months post-cleaning. A slight temporary dip is possible if Google recalculates your profile. Monitor overall organic traffic, the number of active referring domains, and changes in DR/DA.

If you notice a sharp drop of > 20% in your top keywords after submitting the disavow, double-check that you haven't mistakenly disavowed legitimate domains. You can remove lines from the disavow file and resubmit, but recovery takes several weeks while Google recrawls and reevaluates.

  • Export and cross-reference link profiles from at least three different tools
  • Filter by quality metrics (TF, DR, spam score) and over-optimized anchors
  • Manually analyze a representative sample before any mass action
  • Prioritize direct removal before disavow to maintain control
  • Document each removal request with timestamps and follow-up tracking
  • Submit a progressive disavow.txt file, in waves of 50-100 domains
  • Monitor rankings, traffic, and profile metrics for 90 days post-cleaning
Cleaning a link profile requires time, diligence, and careful analysis to avoid throwing the baby out with the bathwater. If your site has accumulated years of gray practices and you lack internal resources for a thorough audit, hiring a specialized SEO agency can save you months and secure the process. An expert will prioritize toxic links, automate part of the process, and limit the risks of over-cleaning that could harm your performance.

❓ Frequently Asked Questions

Le fichier disavow impacte-t-il immédiatement mon classement ?
Non. Google doit d'abord recrawler les pages concernées et recalculer votre profil de liens, ce qui prend généralement plusieurs semaines à quelques mois selon la fréquence de crawl de votre site.
Dois-je désavouer les liens de faible qualité même s'ils n'ont jamais causé de pénalité ?
Ça dépend de votre appétence au risque. Si votre profil est globalement sain et que ces liens représentent moins de 5% du total, l'impact probable est nul. Priorisez d'abord les schémas manifestes de manipulation.
Comment savoir si un lien est ignoré par l'algo ou s'il compte encore ?
Impossible de le savoir avec certitude. Google ne communique pas quels liens sont dévalués. Vous ne pouvez qu'inférer à partir de corrélations entre nettoyage et variations de trafic, ce qui reste imprécis.
Peut-on retirer des domaines du fichier disavow une fois soumis ?
Oui. Modifiez votre fichier disavow.txt en supprimant les lignes concernées et resoumettez-le. Google prendra en compte la nouvelle version lors du prochain recalcul, mais ça prend du temps.
Un concurrent peut-il me nuire en créant des liens spam vers mon site ?
Théoriquement, Google affirme ignorer ces attaques de negative SEO. En pratique, si vous recevez un afflux massif et soudain de liens toxiques, surveillez vos positions et désavouez préventivement les domaines les plus douteux.
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