Official statement
Other statements from this video 17 ▾
- 3:16 L'indexation mobile-first fait-elle disparaître votre contenu desktop des résultats de recherche ?
- 4:47 Le contenu caché accessible après interaction est-il vraiment indexé en mobile-first ?
- 5:18 Faut-il vraiment abandonner les liens JavaScript pour le SEO ?
- 7:20 Les balises canonical suffisent-elles vraiment pour gérer les variantes de produit en SEO ?
- 10:26 Peut-on lister la même URL dans plusieurs sitemaps sans risque ?
- 11:29 Faut-il vraiment basculer son site en HTTPS en une seule fois pour éviter les pertes de trafic ?
- 15:38 Les vidéos et images dans Google News pénalisent-elles vraiment le référencement ?
- 16:39 Faut-il vraiment utiliser du 302 plutôt que du 301 pour les redirections géolocalisées ?
- 18:52 Pourquoi les PWA ne garantissent-elles pas une place dans le carrousel mobile de Google ?
- 23:55 Les contenus similaires se cannibalisent-ils vraiment au niveau des backlinks ?
- 25:06 Les bugs techniques impactent-ils vraiment le classement Google sur le long terme ?
- 31:18 Les rich snippets étoiles dépendent-ils vraiment de la qualité globale du site ?
- 35:54 Faut-il vraiment bloquer les vidéos via robots.txt pour les exclure des snippets enrichis ?
- 38:49 Les paramètres URL multiples sabotent-ils vraiment l'indexation de votre site ?
- 43:18 Comment vérifier qui a soumis quelle URL dans la Search Console ?
- 44:25 Plusieurs balises H1 sur une page web : Google les pénalise-t-il vraiment ?
- 44:34 Peut-on vraiment utiliser plusieurs hreflang vers la même URL sans risquer de pénalité ?
John Mueller states that the 'noreferrer' attribute has no impact on rankings. This statement puts an end to a persistent myth that blocking referral data harms SEO. In practical terms, you can use 'noreferrer' for privacy without fear of losing visibility, but it does not exempt you from rigorously managing your link attributes to maintain PageRank equity.
What you need to understand
Why does this confusion about 'noreferrer' persist?
The rel='noreferrer' attribute prevents the browser from passing the referrer information when a click occurs. Many SEOs have long assumed that if Google does not receive this data, then the link loses its value.
This fear arises from a confusion between tracking analytics and passing equity. The referrer is useful for tools like Google Analytics to identify where traffic comes from. However, Googlebot crawls links independently of this HTTP header: it sees the link in the HTML, end of story.
How does Google actually handle links with 'noreferrer'?
The bot does not rely on user browsing data to calculate PageRank. It analyzes the link graph directly in the source code. A <a href='https://example.com' rel='noreferrer'> is still a valid link.
What Google loses with 'noreferrer' is only visibility in referral traffic reports on the Analytics side. The link still exists for the ranking algorithm. This distinction is crucial.
What other attributes can really affect ranking?
Unlike 'noreferrer', some attributes explicitly alter SEO behavior. The 'nofollow' attribute tells Google not to pass equity (even though since 2019, this has become a hint, not an absolute directive).
The 'sponsored' and 'ugc' attributes qualify the nature of the link. These attributes are interpreted by the algorithm, not 'noreferrer' which remains an instruction for the browser, not for the crawler.
- The 'noreferrer' attribute does not prevent Googlebot from following and indexing the target link
- PageRank transmission occurs independently of the referrer header sent by the browser
- Confusing tracking analytics with SEO equity leads to counterproductive technical decisions
- The attributes that really matter are 'nofollow', 'sponsored', and 'ugc', not 'noreferrer'
- User privacy can be maintained without sacrificing SEO with this type of attribute
SEO Expert opinion
Is this statement consistent with field observations?
Absolutely. For years, no empirical tests have shown a correlation between 'noreferrer' and ranking drops. Sites that use it extensively (especially for security reasons) do not show a pattern of downgrading.
The confusion often stems from a mix-up with 'nofollow', which does have a documented effect. When both attributes coexist (rel='nofollow noreferrer'), it is 'nofollow' that carries the SEO impact, not 'noreferrer'. The real issue remains link architecture and authority dilution, not this specific attribute.
What nuances should be added to this claim?
Mueller's statement is clear on direct ranking, but it is important to distinguish between primary and secondary effects. If 'noreferrer' disrupts your Analytics data, you lose visibility on qualified traffic sources.
This loss of insight can degrade your strategic decisions: you will no longer know which partners generate ROI or which content attracts which profiles. Indirectly, your SEO suffers because you operate blindly, not because Google penalizes you.
In what cases could this rule be misinterpreted?
Some developers combine 'noreferrer' with 'noopener' to secure external links (to avoid the window.opener exploit). If they also add 'nofollow' out of excessive caution, they create a link that is completely sterile for SEO.
The risk is to over-lock outgoing links out of ignorance. A link to a quality source without 'nofollow' remains beneficial for the semantic credibility of your page, even with 'noreferrer'. Confusing technical protection and SEO directives is a common mistake.
Practical impact and recommendations
What should you actually do with your outgoing links?
Review your external link templates. If you added 'noreferrer' by default everywhere, ensure it is not consistently coupled with 'nofollow'. The former is SEO neutral, while the latter blocks equity.
Use 'noreferrer' only when privacy is meaningful: links to sensitive resources, partners who do not need to know where the traffic is coming from, strict GDPR contexts. There’s no need to generalize it blindly.
How to audit the real impact on your site?
Extract all links from your site using a crawler (Screaming Frog, OnCrawl). Filter for rel='noreferrer' and cross-reference with 'nofollow'. Identify cases where both coexist without strategic reasoning.
On the Analytics side, check if any traffic sources appear as 'Direct' when they should be tracked. If you lose granularity on critical channels, it’s a sign to revisit your use of 'noreferrer' on certain internal or partner links.
What mistakes should you avoid in your linking strategy?
Never decide to add or remove 'noreferrer' for SEO reasons. It’s not a ranking lever. Focus on 'nofollow', 'sponsored', and 'ugc' which have documented impacts.
Avoid copy-pasting snippets that blindly combine 'noopener noreferrer nofollow' on all external links. Each attribute serves a purpose: security, privacy, SEO instruction. Mixing them indiscriminately dilutes your outgoing link strategy.
- Audit all links with
rel='noreferrer nofollow'and remove 'nofollow' if the link deserves to pass equity - Reserve 'noreferrer' for contexts where the privacy of the referrer has real value (GDPR, sensitive partnerships)
- Configure Google Analytics correctly to avoid confusing direct traffic and referral traffic masked by 'noreferrer'
- Document your link attribute policy in a technical guide to avoid errors over time
- Test the impact on your Analytics KPIs after every major modification of attributes to detect visibility losses
- Train your editorial teams not to add 'noreferrer' by default in CMS without considering the context
❓ Frequently Asked Questions
Est-ce que 'noreferrer' empêche Google de suivre mes liens sortants ?
Puis-je utiliser 'noreferrer' sur des liens internes sans risque ?
Faut-il supprimer 'noreferrer' de tous mes liens pour améliorer mon SEO ?
Quelle est la différence entre 'noreferrer' et 'nofollow' ?
Comment vérifier si 'noreferrer' affecte mes données Analytics ?
🎥 From the same video 17
Other SEO insights extracted from this same Google Search Central video · duration 53 min · published on 03/05/2018
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