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Official statement

Google had to go back and adjust the weight of the HTTPS signal about 4 to 5 times, gradually decreasing it on the recommendation of the ranking managers, until it reached its current level where it acts as a simple tie-breaker.
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Extracted from a Google Search Central video

💬 EN 📅 06/05/2021 ✂ 26 statements
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Other statements from this video 25
  1. La vitesse de chargement est-elle vraiment un facteur de classement secondaire ?
  2. Comment Google ajuste-t-il le poids de ses signaux de classement après leur lancement ?
  3. La vitesse d'un site peut-elle compenser un contenu médiocre ?
  4. Pourquoi mesurer uniquement le LCP est-il une erreur stratégique pour votre SEO ?
  5. Comment Google valide-t-il réellement ses signaux de classement avant de les déployer ?
  6. Google distingue-t-il vraiment deux types de changements de classement ?
  7. Pourquoi votre classement Google varie-t-il autant selon la géolocalisation de la requête ?
  8. Pourquoi Google crawle-t-il votre site à une vitesse différente de celle mesurée par vos utilisateurs ?
  9. Pourquoi Google refuse-t-il de divulguer le poids exact de ses facteurs de classement ?
  10. Pourquoi Google utilise-t-il vraiment la vitesse comme facteur de classement ?
  11. Pourquoi Google ne se soucie-t-il pas du spam de vitesse ?
  12. Pourquoi les métriques SEO peuvent-elles signaler une régression alors que l'expérience utilisateur s'améliore ?
  13. La vitesse de chargement mérite-t-elle encore qu'on s'y consacre autant ?
  14. Le HTTPS n'est-il qu'un simple bris d'égalité entre sites équivalents ?
  15. Comment Google détermine-t-il vraiment le poids de chaque signal de classement ?
  16. Pourquoi Google mesure-t-il parfois l'impact d'une mise à jour avec des métriques négatives ?
  17. La vitesse de chargement est-elle vraiment un signal de classement mineur ?
  18. La vitesse du site est-elle vraiment secondaire face à la pertinence du contenu ?
  19. Pourquoi mesurer uniquement le LCP ne suffit-il plus pour les Core Web Vitals ?
  20. Vitesse de crawl vs vitesse utilisateur : pourquoi Google distingue-t-il ces deux métriques ?
  21. Pourquoi vos résultats de recherche varient-ils selon les régions et langues ?
  22. Votre site est-il vraiment global ou juste multilingue ?
  23. Faut-il vraiment investir dans l'optimisation de la vitesse pour contrer le spam ?
  24. Pourquoi Google refuse-t-il de dévoiler le poids exact de ses facteurs de ranking ?
  25. Pourquoi Google utilise-t-il la vitesse comme facteur de classement ?
📅
Official statement from (4 years ago)
TL;DR

Google had to adjust the weight of the HTTPS signal between 4 and 5 times before its official launch, gradually decreasing its importance on the recommendation of the ranking teams. Today, it serves only as a tie-breaker: it differentiates between two strictly equivalent pages. For an SEO practitioner, this means that HTTPS remains an essential technical prerequisite, but hoping for a direct ranking boost is misguided.

What you need to understand

Why did Google have to reduce the importance of HTTPS multiple times?

When Google introduced HTTPS as a ranking factor in 2014, the goal was clear: massively encourage the adoption of encryption on the web. However, the signal was initially much too strong. The ranking teams quickly found that mediocre pages in HTTPS were outranking quality content in HTTP, creating a major distortion in the results.

This statement reveals an iterative and pragmatic adjustment process. Google had to test, measure, observe the unintended effects, and then gradually reduce the weight of the signal. Between 4 and 5 iterations were necessary to reach a balance where HTTPS plays its role — encouraging security — without polluting the relevance of the results.

What exactly is a 'tie-breaker' in the algorithm?

A tie-breaker only comes into play when two pages are judged to be strictly equivalent on all other signals: content quality, backlink authority, user experience, search intent, freshness, etc. It is a final differentiating signal, almost anecdotal in most cases.

In practical terms, this means that if your competitor surpasses you in domain authority, semantic relevance, or content depth, your HTTPS will not make up for anything at all. The signal only acts in a perfectly equal situation — which, in SEO practice, rarely occurs. Two pages are rarely in strict equality across all the hundreds of signals analyzed by Google.

Was this approach predictable from the start?

Not really. At the time of the launch, many practitioners expected a measurable and lasting boost from HTTPS. Google even communicated the idea that the signal could gain importance over time. But this statement reveals the opposite: Google quickly understood that overemphasizing security at the expense of relevance was counterproductive.

This multiple iteration also shows that Google tests massively in real production before stabilizing a signal. There was no perfect theoretical model from the start — just successive adjustments based on observing SERP behavior and internal quality team feedback.

  • HTTPS is a technical prerequisite, not an exploitable ranking lever
  • The signal was deliberately weakened to avoid relevance distortions
  • A tie-breaker only applies in situations of strict equality, so very rarely in practice
  • Google adjusts its signals in production through successive iterations, not through pure theoretical modeling
  • No promise of future increases in the weight of HTTPS is credible in light of this statement

SEO Expert opinion

Does this statement align with field observations?

Yes, and it is even one of the few Google statements that perfectly matches what we've been observing for years. A/B tests conducted on migrations from HTTP to HTTPS have never shown systematic position gains. When a site gains after migrating to HTTPS, it is usually linked to other technical optimizations carried out simultaneously: correcting indexing errors, improving speed, redesigning internal linking, etc.

The reality is that in most competitive verticals, all serious players have been in HTTPS for several years. Therefore, the signal no longer differentiates anyone. In high-volume, highly competitive queries, the pages that rank in the top 3 are systematically in HTTPS — but that’s not why they rose.

What nuances should be added to this statement?

Google is talking about the weight of the signal in organic ranking, but HTTPS has other real indirect impacts. First, Chrome now displays a very visible warning on HTTP sites, degrading the click-through rate and user trust. Additionally, some advanced features (HTTP/2, Service Workers, geolocation APIs) require HTTPS to function.

There’s also an economic and UX dimension to consider. A pure HTTP e-commerce site will lose conversions due to perceived insecurity, even if it doesn't directly impact ranking. And Core Web Vitals can be indirectly affected if HTTP/2 is not enabled due to the lack of HTTPS. In short, HTTPS remains essential, but not for the reasons many believe.

In what cases does this rule not apply?

There are marginal situations where the tie-breaker may indeed come into play. Imagine a super-specific, low-competition niche where two sites have nearly identical backlink profiles, similar quality content, and equivalent authority. In this case, HTTPS could theoretically tip the balance. But let’s be honest: this is anecdotal.

Another edge case concerns sites migrating from HTTP to HTTPS while simultaneously correcting major technical errors (302 redirects instead of 301, massive content duplication, canonicalization problems). These sites may see a gain in positions — but attributing this gain solely to HTTPS is a classic misinterpretation. It’s the correction of errors that drives the result, not the protocol itself.

Warning: Do not confuse a weak ranking signal with a lack of technical obligation. Every professional site must be in HTTPS by 2025, period. But hoping for a direct SEO boost is an illusion.

Practical impact and recommendations

What should you do with this information?

If your site is still in pure HTTP, the top priority is to migrate to HTTPS — but not for direct ranking reasons. Do it for user experience, trust, GDPR compliance, and access to modern web features. The migration should be meticulously planned: valid SSL certificate, systematic 301 redirects, updating internal links, modifying the XML sitemap, and monitoring for mixed content errors.

Once the migration is done, focus your efforts on the signals that really matter. HTTPS is just a basic prerequisite, not an optimization lever. Invest instead in quality content, topical authority, semantic structure, improving Core Web Vitals, and building a robust backlink profile. That’s where the ranking battle is fought.

What mistakes should be avoided during an HTTPS migration?

The classic mistake is to misimplement redirects. Each HTTP URL must permanently redirect in 301 to its exact HTTPS equivalent — not to the root of the domain. A chain redirect (HTTP → HTTPS → final URL) dilutes PageRank and slows down crawling. Another common trap is leaving resources (images, scripts, CSS) loaded via HTTP from HTTPS pages, causing mixed content errors and breaking the green padlock display.

Many sites also neglect to update their internal backlinks after migration. As a result, Google continues to crawl the old HTTP URLs heavily via the internal linking, slowing down the transition and diluting link equity. Finally, forget the idea of keeping both versions accessible (HTTP and HTTPS without redirect): you would create massive duplication that would kill your indexing.

How to ensure the HTTPS migration has been properly implemented?

Start with a complete technical audit: check that all HTTP URLs return a 301 code to their HTTPS equivalent, that the SSL certificate is valid and up to date, and that no mixed resources are loaded. Use Chrome DevTools (Security tab) to detect mixed content errors. Then, monitor Search Console: the old HTTP URLs should gradually disappear from the index in favor of the HTTPS versions.

Also, analyze your server logs to ensure that Googlebot is primarily crawling HTTPS URLs after a few weeks. If the old HTTP URLs continue to receive a lot of hits, it’s a sign of an internal linking or outdated external backlinks issue. Finally, ensure that your organic positions don’t drop suddenly in the days following the migration — any sudden loss indicates an implementation error.

  • Set up a valid SSL certificate (Let's Encrypt or paid certificate depending on criticality)
  • Configure permanent 301 redirects from each HTTP URL to its exact HTTPS equivalent
  • Correct all internal links to point directly to the HTTPS URLs
  • Update the XML sitemap and submit the HTTPS version in Search Console
  • Check for the absence of mixed content errors with Chrome DevTools
  • Monitor the indexing evolution of HTTPS vs. HTTP in Search Console for 4-6 weeks
HTTPS is a non-negotiable technical foundation, but don’t rely on it to climb up the SERPs. What makes the difference is content quality, authority, and fine-tuning of UX signals. If these technical optimizations seem complex to orchestrate alone — between SSL audits, redirect management, indexing monitoring, and fixing mixed content errors — it may be wise to rely on a specialized SEO agency to secure the migration and avoid classic pitfalls that can be costly in visibility.

❓ Frequently Asked Questions

Le HTTPS va-t-il gagner en importance dans le futur ?
Non, cette déclaration indique clairement que Google a volontairement réduit le poids du signal. Rien ne laisse penser qu'il sera renforcé, surtout maintenant que la majorité du web est déjà en HTTPS.
Un site HTTP peut-il encore bien se classer en 2025 ?
Techniquement oui, si tous ses autres signaux sont excellents. Mais en pratique, l'absence de HTTPS dégrade la confiance utilisateur et limite l'accès à des fonctionnalités modernes, ce qui pénalise indirectement.
Faut-il migrer en HTTPS si on est déjà bien positionné en HTTP ?
Absolument. Pas pour gagner des positions, mais pour éviter les avertissements de sécurité de Chrome, améliorer le taux de conversion, et préparer l'avenir technique du site.
Pourquoi certains sites ont-ils gagné des positions après migration HTTPS ?
Parce qu'ils ont corrigé d'autres problèmes techniques en parallèle : redirections mal configurées, duplication de contenu, erreurs d'indexation. Le gain vient de ces corrections, pas du HTTPS lui-même.
Le HTTPS impacte-t-il les Core Web Vitals ?
Indirectement oui, car HTTPS est requis pour activer HTTP/2, qui améliore la vitesse de chargement. Mais le protocole seul n'a aucun impact direct sur les métriques CWV.
🏷 Related Topics
HTTPS & Security

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Other SEO insights extracted from this same Google Search Central video · published on 06/05/2021

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