Official statement
Other statements from this video 57 ▾
- 1:02 Why does Penguin cause ranking fluctuations weeks after its announcement?
- 1:02 What causes your site to disappear and then reappear during the Penguin rollout?
- 1:02 Why does the Penguin rollout lead to unpredictable ranking fluctuations?
- 1:35 Should you really submit your disavow file daily for it to be effective?
- 1:35 Do you really need to wait for Penguin for the disavow file to be considered?
- 1:35 Does the disavow file work continuously or in waves?
- 12:30 Does switching to HTTPS really slow down your site in Google's eyes?
- 12:42 Does switching to HTTPS really slow down your site and affect your SEO?
- 13:02 Does switching to HTTPS really slow down your website?
- 14:28 Is switching from HTTP to HTTPS really risk-free for your rankings?
- 14:48 Can a HTTPS migration really happen without any ranking loss?
- 14:48 Is migrating to HTTPS really risk-free for your SEO?
- 19:26 Should you really set all widget links to nofollow by default?
- 19:34 Should all widget links really be nofollow?
- 19:34 Should you really enforce nofollow on all third-party widget links?
- 22:42 Do DMCA complaints really harm a website's SEO?
- 24:14 Can you really block the flow of PageRank with robots.txt on a middle page?
- 27:07 Does Google really detect negative SEO, or should you still actively protect yourself?
- 27:27 Is negative SEO really the reason behind your traffic losses?
- 27:55 Can Google really detect and neutralize negative SEO automatically?
- 30:36 Do you really need to disavow every spammy backlink you find?
- 31:41 Do DMCA complaints really take pages out of Google's index?
- 31:54 Do DMCA complaints really deindex your pages, or do they just hide them?
- 32:44 Do links between language versions of a site really trigger a Penguin penalty?
- 32:44 Could the language links on your multilingual site set off Penguin?
- 32:44 Do interlanguage links without nofollow trigger a Penguin penalty?
- 33:16 How many results from the same site can Google show in its SERPs?
- 36:26 How does Panda really balance positive and negative signals to rate a site?
- 36:26 Does Panda really evaluate websites holistically or is it just focused on penalizing?
- 36:36 Does Panda really calculate an overall quality score instead of just penalizing sites?
- 37:38 Does mobile compatibility really influence Google rankings?
- 37:58 Is mobile compatibility really a ranking factor?
- 37:58 Is mobile-friendliness really a Google ranking factor or just an SEO myth?
- 39:03 Why does Google refuse to notify which algorithm is penalizing your site in Search Console?
- 39:03 Do Google algorithms really serve to guide webmasters?
- 39:03 Can Google's algorithms really guide your SEO strategy?
- 41:06 Should we stop chasing after Google's algorithms?
- 41:58 Will Search Console finally tell us exactly what to fix?
- 44:47 Can Google show 10 results from the same domain in its SERPs?
- 44:47 Can Google really display 10 results from the same domain in a SERP?
- 44:47 Can your hosting IP really harm your SEO rankings?
- 47:47 Why do your position-tracking tools show a different reality than Search Console?
- 47:49 Why do Search Console positions never match those of your tracking tools?
- 48:27 Does Search Console really show the positions your users see?
- 49:47 Are websites on the same IP selling the same products penalized for duplicate content?
- 50:08 Does shared hosting really harm your Google rankings?
- 54:13 Should you really delete old articles to escape Panda?
- 54:13 Should you really delete old blog posts for Panda?
- 54:13 Should you delete your old blog posts to avoid a Panda penalty?
- 55:23 Should we really ignore links from stat pages and external SERPs?
- 55:23 Should you disavow links from public statistics and non-indexed pages?
- 56:59 Is negative SEO really the reason behind your traffic drops?
- 56:59 Is Negative SEO Hiding Your Own Link Building Mistakes?
- 59:38 Does noindex really protect your site from quality algorithms?
- 59:38 Do noindexed pages really escape Google's quality algorithms?
- 59:38 Does using noindex truly protect your site from algorithmic penalties?
- 61:14 How many results from the same domain can Google show in the SERPs?
Google automatically ignores links from result pages of third-party search engines and public statistics tools. These backlinks have no impact on SEO, whether positive or negative. There’s no need to waste time disavowing them via Search Console: focus on real toxic spam and deliberately manipulative links.
What you need to understand
Why does Google automatically ignore these links?
Google's algorithms have developed the ability over the years to identify typical patterns of links generated mechanically by third-party tools. Each time a site analyzes a domain through Ahrefs, SEMrush, or Majestic, it creates a public page containing outgoing links to that domain. Similarly, alternative search engines (DuckDuckGo, Qwant, Ecosia) generate dynamic SERPs with thousands of links.
These links share recognizable technical signatures: systematic nofollow attributes, uniform anchor patterns, sources from a handful of recurring domains, massive volume on limited IP ranges. Google has refined its filters to detect these patterns and exclude them from PageRank calculation even before they reach your visible link profile.
What types of links are specifically affected?
The statement explicitly targets two categories. First, result pages of third-party search engines: any URL like search.yahoo.com/search?q=, duckduckgo.com/?q=, or even SERPs from vertical engines (image search, videos, products). These pages constantly change and inherently contain hundreds of outgoing links.
Next, public statistics and SEO analysis tools: publicly shared backlink reports from Ahrefs, domain profiles on Moz, traffic analyses on SimilarWeb, Wayback Machine archives. All these services create URLs containing your domain with a clickable link to it. Their sole purpose is documentary, not editorial.
Does this rule also apply to directories and aggregators?
No, and that's a critical nuance. Traditional business directories (Yellow Pages, Yelp, TripAdvisor) are not stats tools: they have editorial and commercial intent. Even if they automatically generate thousands of listings, each link is contextualized within a page dedicated to a real entity.
RSS or syndicated content aggregators fall into a gray area. If they merely republish automatically without editorial validation, Google may treat them as noise. However, a selective aggregator with human curation remains a legitimate backlink. The decisive criterion: is there editorial intent, or is it just automatic mechanics?
- Links from third-party SERPs and reports from public tools are pre-filtered by Google
- No negative impact on your profile: no need to disavow
- Focus your disavow efforts on real manipulative spam (PBNs, link farms, scraper comments)
- Legitimate directories and editorial aggregators are not affected by this rule
- Google differentiates mechanical links without intent from contextual links with added value
SEO Expert opinion
Is this statement consistent with field observations?
Absolutely. Backlink profile audits regularly show thousands of links from SEO tool domains (ahrefs.com, moz.com, semrush.com) with no correlation to ranking fluctuations. Sites that suddenly receive 500 backlinks from DuckDuckGo SERPs or Majestic reports see no boost or penalty.
Even more revealing: tests for mass disavowal of these links produce no measurable change. If Google really counted them, their removal via disavow would have a visible impact. The complete lack of effect confirms they are excluded from calculations well in advance. Algorithms have learned to isolate this background noise even before the qualitative evaluation step.
What nuances should be added to this assertion by Google?
Mueller speaks of what Google "has learned" to recognize, but not all third-party engines are equal. A small vertical search engine with 200 users per month may escape the filters if it does not match any known pattern. In this rare case, the link could technically be counted, even though its weight would be negligible.
A second nuance: stats tools that add original editorial content around their report change their status. For example, a blog article from Ahrefs analyzing your link strategy is no longer just a mechanical tool but a written content. This contextual link regains editorial value and falls out of Mueller's statement scope.
[To be verified] The exact boundary between "stats tool" and "editorial content" is not documented by Google. Does a tool generating automatic insights via AI fall into the filtered category? Can Google crawlers distinguish an automated report from a semi-human analysis? Mueller does not provide any precise technical criteria, leaving a significant gray area for hybrid tools.
In what cases might this rule not apply?
If a stats tool becomes an editorial authority in its niche, its links may regain weight. Take a concrete example: Built With automatically generates technology profiles, but some of its pages are cited as references in academic studies. This authority status can bypass the mechanical filter.
Another exception: internal company tools that accidentally leak into indexing. A misconfigured analytics dashboard that exposes public URLs with links to your competitors does not have the typical pattern of an Ahrefs. Google may not recognize it immediately and temporarily treat these links as legitimate before correction.
Practical impact and recommendations
What should you do practically with existing links?
Nothing. Absolutely nothing. If your current disavow file contains dozens of domains like search.yahoo.com, ahrefs.com, moz.com, or serpstat.com, you can safely remove them. These lines have never had a real effect; they just clutter your file and complicate maintenance.
During your next backlink audit, set your filters to automatically exclude these sources from the count. Ahrefs and Majestic allow for the creation of permanent exclusion lists. This visually cleans your profile and saves you time analyzing noise. Focus your energy on domains that truly matter.
What mistakes to avoid during a backlink audit?
The classic mistake: confusing a legitimate directory with a stats tool because it displays metrics. A company profile on Trustpilot shows ratings and reviews in numbers, but it is an editorial platform with human validation. Disavowing it would be counterproductive.
Another common trap: disavowing links from web archives (Wayback Machine, Archive.is) thinking they are spam. These archives are legitimate documentary services that Google correctly interprets. Their presence in your profile is neutral, even positive as proof of age. Do not touch these backlinks.
How can you optimize time spent managing toxic backlinks?
Create a permanent whitelist in your monitoring tool: all known SEO tool domains, alternative search engines, archive services. Automate exclusion upon detection. You will save hours each month by avoiding manual analysis of hundreds of false positives.
Prioritize your time on real danger signals: a sudden spike in backlinks from unseen domains, massively over-optimized anchors, links from parked IPs or 404 pages. These are the patterns that deserve investigation and potential disavow. Links from stats tools pose no risk and require no action.
- Remove SEO tool domains (Ahrefs, Moz, SEMrush, Majestic) from your current disavow file
- Set up permanent exclusion filters in your backlink monitoring tools
- Do not confuse legitimate directories and stats tools: verify editorial intent
- Keep web archive links (Wayback Machine): they are neutral and legitimate
- Focus your audits on real spam: PBNs, link farms, automated comments
- Document your disavow criteria to avoid repetitive mistakes in future audits
❓ Frequently Asked Questions
Les liens depuis Ahrefs ou SEMrush peuvent-ils pénaliser mon site ?
Dois-je désavouer les backlinks provenant de DuckDuckGo ou Ecosia ?
Un profil Crunchbase ou AngelList est-il considéré comme un outil de stats ?
Les archives Wayback Machine sont-elles toxiques pour mon profil ?
Comment savoir si un lien d'outil est vraiment ignoré par Google ?
🎥 From the same video 57
Other SEO insights extracted from this same Google Search Central video · duration 1h05 · published on 03/11/2014
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