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Official statement

The use of the 'noreferrer' attribute does not affect the ranking of a web page.
18:07
🎥 Source video

Extracted from a Google Search Central video

⏱ 53:42 💬 EN 📅 03/05/2018 ✂ 18 statements
Watch on YouTube (18:07) →
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📅
Official statement from (8 years ago)
TL;DR

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.

Attention: If you use 'noreferrer' on internal links (which would be absurd), you complicate your own tracking. The attribute only makes sense on external links where the privacy of the referrer has real value for the user.

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
The 'noreferrer' attribute does not harm ranking, but if poorly managed, it can cloud your traffic analysis. Focus your SEO efforts on real levers: quality of links, semantic relevance, 'nofollow'/'sponsored'/'ugc' attributes. If your link architecture becomes complex or if you have doubts about the impact of your current configurations, consulting a specialized SEO agency can help you finely optimize this technical dimension without sacrificing privacy or performance.

❓ Frequently Asked Questions

Est-ce que 'noreferrer' empêche Google de suivre mes liens sortants ?
Non. Googlebot crawle les liens directement dans le HTML, indépendamment du header referrer. L'attribut 'noreferrer' ne bloque que la transmission de l'origine au navigateur de l'utilisateur, pas au robot.
Puis-je utiliser 'noreferrer' sur des liens internes sans risque ?
Techniquement oui, mais c'est inutile et contre-productif. Vous perdriez la visibilité sur vos parcours utilisateurs dans Analytics sans aucun gain de confidentialité. Réservez-le aux liens externes.
Faut-il supprimer 'noreferrer' de tous mes liens pour améliorer mon SEO ?
Non, cet attribut n'a aucun impact sur le classement. Si vous l'avez ajouté pour des raisons de sécurité ou de confidentialité, conservez-le. Concentrez-vous plutôt sur 'nofollow', 'sponsored' et 'ugc'.
Quelle est la différence entre 'noreferrer' et 'nofollow' ?
'noreferrer' est une instruction pour le navigateur qui masque l'origine du clic. 'nofollow' est un signal pour Google de ne pas transmettre d'équité de PageRank. Le premier est neutre SEO, le second a un impact direct.
Comment vérifier si 'noreferrer' affecte mes données Analytics ?
Comparez vos sources de trafic referral avant/après ajout de l'attribut. Si du trafic bascule en 'Direct' alors qu'il devrait apparaître comme referral, c'est que 'noreferrer' masque l'origine. Cela n'affecte pas le SEO, seulement votre reporting.
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