Official statement
Other statements from this video 19 ▾
- 1:34 Les redirections font-elles vraiment perdre du PageRank ou pas ?
- 2:05 Les redirections sur sous-domaines vers l'externe pénalisent-elles vraiment votre SEO ?
- 2:36 Les redirections diluent-elles vraiment la puissance de vos liens ?
- 7:28 Pourquoi vos pages n'apparaissent-elles pas dans l'index malgré votre sitemap ?
- 15:33 Les erreurs 404 impactent-elles vraiment votre positionnement dans Google ?
- 15:42 Faut-il supprimer les pages de profil avec peu de contenu pour éviter une pénalité ?
- 16:47 Les filtres canoniques peuvent-ils empêcher Google d'indexer vos produits ?
- 17:41 Faut-il encore utiliser 'noindex' dans robots.txt ou est-ce déjà obsolète ?
- 19:56 Faut-il vraiment passer tous vos liens externes en nofollow par défaut ?
- 21:14 La canonisation vers la page 1 peut-elle ruiner l'indexation de vos produits ?
- 26:02 Le texte d'ancrage des liens internes influence-t-il vraiment le positionnement ?
- 26:17 Le texte d'ancrage interne influence-t-il vraiment la compréhension de vos pages par Google ?
- 39:23 La compression d'images impacte-t-elle vraiment votre classement Google ?
- 46:01 Le Data Highlighter reste-t-il pertinent pour tester les données structurées ?
- 46:05 Faut-il abandonner le Data Highlighter pour implémenter du balisage structuré directement ?
- 54:42 Faut-il vraiment éviter les redirections IP automatiques sur les sites multilingues ?
- 55:16 Faut-il vraiment limiter les redirections IP à la page d'accueil pour le SEO multilingue ?
- 60:12 Les appels publicitaires non affichés impactent-ils vraiment l'indexation de vos pages ?
- 90:15 Faut-il vraiment conserver les redirections après la suppression d'un produit ?
Google claims to track the entire chain of redirects from the starting point to the final destination. According to Mueller, an intermediate redirect that crosses your domain does not significantly reduce the power of the link provided. Practically speaking, this means we can breathe a little easier about complex technical redirects, but it doesn’t excuse the need to regularly audit these chains to avoid crawl delays.
What you need to understand
What does Google really mean by “does not significantly reduce”?
Mueller uses a deliberately vague term: “significantly.” He does not say that the loss is zero, just that it is not massive. This wording leaves a quantitative doubt: do we lose 2%, 5%, or 10%?
Google remembers the origin and final destination of a link, even if it passes through several intermediate URLs. Specifically, if a backlink points to an old URL that redirects to a temporary page which then redirects to the final page, Google understands the complete chain and passes on the link signal all the way through.
Why this statement now?
This clarification addresses a persistent belief in the SEO community: the idea of “PageRank leak” with each redirect hop. Historically, it was taught that a 301 results in about a 15% loss of juice. This empirical rule dates back to the pre-2016 era.
Mueller seeks to reassure practitioners regarding complex migrations where temporary redirects or routes through CDNs create unintended chains. The underlying message: don’t panic if your technical architecture requires some intermediate hops.
What is the technical nuance behind this statement?
Google likely distinguishes between “clean” redirects (301, 302, 307, 308) and JavaScript or meta-refresh redirects, which pose problems. The statement applies to standard HTTP redirects, not to JS tricks where Googlebot must execute code to discover the destination.
Crawl still gets impacted. A chain of 4 redirects consumes 4 times more crawl budget than a direct link. The juice may arrive intact, but Googlebot takes longer to crawl your site and may give up on deep pages along the way.
- Google tracks the complete chain: origin → intermediates → final destination
- The transmission of link juice remains “significant” according to Mueller (no exact number)
- Standard HTTP redirects are relevant (301, 302, 307, 308)
- Crawl budget is still impacted by long chains
- JavaScript or meta-refresh redirects are probably not within the scope of this statement
SEO Expert opinion
Is this statement consistent with real-world observations?
Yes and no. In well-executed migrations, there is indeed a quick recovery of positions despite multiple temporary redirects. Organic traffic follows, with a consolidation delay typically of 2-4 weeks.
However, in pathological cases—chains of 5+ redirects, inconsistent 301/302 mixes, temporary loops—there are real visibility losses that can take months to resolve. It’s hard to know if it’s the dilution of juice or crawl saturation causing the issue. [To be verified] to what extent Google differentiates between these two effects.
What nuances should be added to this statement?
Mueller only discusses link value transfer, not user experience or crawl speed. A chain of 3 redirects can retain its juice but ruin loading speed and user journey fluidity.
Second point: he says “does not reduce significantly.” This qualifier is crucial. In a highly competitive environment, losing 3-5% of juice on your top 20 backlinks may be enough to lose a position. Google likely downplays the impact to discourage SEOs' unhealthy obsession with micro-optimizations of redirects.
In what cases does this rule not apply?
JavaScript redirects or those via meta-refresh likely do not benefit from this leniency. Google must execute JS, which consumes more resources and slows the discovery of the final destination. The juice passes, but with more friction.
Improperly configured temporary redirects (302 lasting 6 months) disrupt consolidation. Google hesitates between the old and the new URL, diluting signals between the two. This is not a loss of juice per se, it's a confusion of attribution.
Practical impact and recommendations
What should be done concretely with this information?
First, audit existing redirect chains on your site. Use Screaming Frog, Oncrawl, or a simple Python script to identify all URLs that redirect to another URL which itself redirects. If a chain exceeds 2 hops, streamline it.
Then, during a migration or redesign, don't over-stress if an intermediate temporary redirect is necessary for technical reasons (CDN, load balancer, microservices architecture). Mueller allows this flexibility as long as the final destination remains clear and stable.
What mistakes should absolutely be avoided?
Never let a redirect chain settle permanently. What is tolerable during a 3-week migration becomes problematic after 6 months. Consolidate as soon as possible: update internal and external links to point directly to the final destination.
Avoid redirect loops and back-and-forth between HTTP and HTTPS, www and non-www. These configuration errors are catastrophic for crawling and effectively dilute juice, regardless of what Mueller says. Google may give up after a few attempts.
How can you check if your redirect architecture is optimal?
Use Search Console to spot orphan URLs or pages with abnormally low crawl rates. If an important page is only crawled once a month while it changes weekly, look for a redirect chain upstream.
Also test the resolution speed of redirects with curl or a tool like WebPageTest. If the complete chain takes more than 500ms, you have a problem that will impact UX and likely crawling, even if the juice passes.
- Identify all redirect chains with more than 2 hops
- Update internal links to point directly to the final destination
- Prioritize permanent 301s over temporary 302s (unless in specific cases)
- Check the consistency of www/non-www and HTTP/HTTPS throughout the chain
- Monitor crawl budget in Search Console after each redesign
- Test the resolution speed of redirects (goal: less than 300ms per hop)
❓ Frequently Asked Questions
Une chaîne de 3 redirections 301 fait-elle vraiment perdre du jus de lien ?
Vaut-il mieux une 301 directe ou une 301 puis une 302 ?
Les redirections JavaScript transmettent-elles le jus de la même manière ?
Faut-il absolument corriger les anciennes chaînes de redirections héritées ?
Comment Google gère-t-il une redirection qui traverse un domaine tiers ?
🎥 From the same video 19
Other SEO insights extracted from this same Google Search Central video · duration 59 min · published on 04/04/2017
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