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Official statement

Non-secure sites (HTTP) are not automatically penalized in Google search results due to the 'not secure' label. However, planning a transition to HTTPS is advised to stay updated, as changes could be forthcoming in this area.
3:39
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Extracted from a Google Search Central video

⏱ 52:25 💬 EN 📅 06/10/2016 ✂ 22 statements
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Other statements from this video 21
  1. 3:41 HTTPS améliore-t-il vraiment le classement dans Google ?
  2. 6:46 Comment Google choisit-il l'URL canonique quand plusieurs versions pointent vers le même contenu ?
  3. 10:28 Faut-il vraiment maintenir toutes vos anciennes URL accessibles pour le SEO ?
  4. 10:31 Les redirections 301 et 302 transfèrent-elles vraiment tous les signaux de liaison ?
  5. 14:10 La vérification DNS dans Search Console couvre-t-elle vraiment tous vos sous-domaines ?
  6. 18:49 Faut-il vraiment rediriger chaque image en 301 lors d'un passage HTTPS ?
  7. 21:23 Pourquoi un changement de template ou une migration HTTPS peut-il faire chuter votre trafic Google News ?
  8. 21:50 Un certificat SSL expiré détruit-il vraiment votre classement Google ?
  9. 22:30 Un certificat SSL expiré pénalise-t-il vraiment votre classement Google ?
  10. 23:35 Penguin en temps réel : vos actions de netlinking impactent-elles vraiment plus vite vos rankings ?
  11. 23:59 Faut-il encore utiliser le fichier Disavow en SEO ?
  12. 24:00 Faut-il encore désavouer les mauvais liens si Penguin dévalue automatiquement en temps réel ?
  13. 26:04 L'optimisation mobile impacte-t-elle vraiment seulement le classement mobile ?
  14. 26:57 Faut-il vraiment utiliser le nofollow sur vos liens internes ?
  15. 27:36 Le nofollow sur les liens internes améliore-t-il vraiment le référencement ?
  16. 27:43 Google traite-t-il vraiment les sous-domaines comme des sites séparés ?
  17. 28:26 Le lazy loading sabote-t-il l'indexation de vos images dans Google ?
  18. 29:32 Faut-il isoler vos sous-domaines de test sur un hébergement distinct pour protéger votre SEO ?
  19. 31:23 Faut-il vraiment structurer vos URL pour Google News avec des répertoires spécifiques ?
  20. 41:34 Google utilise-t-il vraiment deux algorithmes différents pour mobile et desktop ?
  21. 43:58 Comment garantir la cohérence entre les versions AMP et desktop sans pénalité algorithmique ?
📅
Official statement from (9 years ago)
TL;DR

Google claims that HTTP sites do not face a direct penalty related to the 'not secure' label displayed in Chrome. However, HTTPS has been a ranking signal for years, and transitioning remains recommended. This announcement suggests that policies may evolve, encouraging anticipation rather than waiting for a formal sanction.

What you need to understand

Does Google penalize HTTP sites in its algorithm?

The official answer is no, not directly. The 'not secure' label visible in the Chrome browser does not lead to automatic demotion in the SERPs. This distinction needs clarification: the browser warning and the HTTPS ranking signal are two separate mechanisms.

HTTPS has long been a confirmed ranking factor, but its weight remains modest compared to relevance, content, or authority signals. A well-optimized HTTP site can still outperform a poorly optimized HTTPS site on specific queries. The nuance is that the absence of HTTPS does not trigger a punitive filter, but it deprives the site of a cumulative advantage.

Why does Google state that no penalty is applied?

This communication aims to reassure webmasters who fear a harsh sanction following the warning displayed in Chrome. Google differentiates here between user experience in the browser and algorithmic processing in search. The goal is to avoid widespread panic among site owners still on HTTP.

However, the wording 'changes could be forthcoming' serves as an implicit warning. Google often employs this strategy: announcing an absence of immediate sanctions while signaling that an evolution is being considered. This allows web actors to adapt without imposing a harsh constraint that could harm the overall search experience.

What really sets HTTP apart from HTTPS for SEO?

HTTPS encrypts data between the browser and server, enhancing user security and reducing risks of content interception or manipulation. For Google, this strengthens trust in the results provided. An HTTPS site enjoys a slight ranking boost, particularly noticeable at equal quality levels between two competing pages.

Beyond ranking, transitioning to HTTPS avoids lost referer issues when clicking from an HTTPS site to an HTTP site. Traffic data can be better tracked, and some browsers now block mixed content (HTTP scripts, images on an HTTPS page), which can break display or functionality.

  • HTTPS is a weak but cumulative ranking signal, not a binary filtering criterion.
  • The absence of HTTPS does not lead to a direct algorithmic penalty, but it deprives a competitive advantage.
  • Google indicates a possible future evolution, urging migration without panic but with anticipation.
  • Collateral impacts (lost referer, blocked mixed content) affect user experience and analytics tracking.
  • The HTTPS migration remains technically accessible to any site, regardless of its size or infrastructure.

SEO Expert opinion

Does this statement align with field observations?

Yes and no. In essence, correlation audits confirm that HTTPS provides a marginal ranking gain, particularly in competitive sectors. However, Google's wording leaves some ambiguity: saying there is 'no penalty' does not equate to saying that HTTPS has no impact. Practical reality shows that HTTPS sites tend to perform better, but isolating causality is difficult.

The problem is that Google never quantifies the exact weight of the HTTPS signal. We know it exists, we observe correlations, but it is impossible to determine whether this represents 0.5% or 2% of the overall scoring. This opacity is typical: Google prefers to talk about 'signals' rather than percentages, making any rational prioritization of SEO tasks difficult. [To be verified] with controlled A/B tests on identical HTTP/HTTPS page corpuses, but few sites can afford this luxury.

What risks still come with the absence of HTTPS in practice?

Beyond direct ranking, HTTP exposes to measurable indirect risks. Modern browsers display increasingly aggressive warnings, impacting bounce rates and user trust. Chrome, Firefox, and Safari now label HTTP forms as 'not secure', which can kill conversions on contact or registration pages.

Progressive Web Apps, push notifications, and some modern APIs (precise geolocation, camera access, etc.) require HTTPS to function. An HTTP site progressively loses emerging features that may become standard expectations. Finally, GDPR regulations and equivalent international standards increase legal pressure on data security, even if mere HTTPS compliance does not guarantee regulatory compliance.

Is Google being straightforward with this communication?

Honestly, this statement feels like a sneaky transition before tightening. Google often warns well in advance before enforcing strict criteria (see the history of Core Web Vitals, mobile-first indexing, etc.). Saying 'changes could be forthcoming' is a clear signal: if you haven't migrated yet, now is the time.

What is frustrating is the lack of a clear timeline. An SEO practitioner must arbitrate among dozens of technical tasks, and without a precise deadline, it is difficult to rationally prioritize. Google maintains this ambiguity to avoid a simultaneous rush that could overwhelm certification authorities or create massive migration bugs. But for professionals, this imposes treating HTTPS as a permanent project, not an option.

Practical impact and recommendations

Should you migrate to HTTPS even without an announced penalty?

Yes, absolutely. The absence of immediate sanctions does not justify inaction. The migration cost has drastically decreased: Let's Encrypt certificates are free, most hosts offer a one-click migration button, and modern CMSs handle redirects automatically. Delaying migration exposes you to a more costly emergency task if Google suddenly tightens its stance.

Well-executed HTTPS transition brings immediate benefits: improved user trust, compatibility with modern features, and importantly, the removal of browser warnings that degrade conversion rates. Even if the pure SEO gain remains marginal, the overall impact on business justifies the investment. A site that waits for an external constraint to secure its users risks its image and competitiveness.

What traps should you avoid during the HTTPS migration?

The majority of migrations fail due to poorly managed technical details. The classic trap: setting up the SSL certificate but forgetting permanent 301 redirects for all HTTP URLs to their HTTPS equivalents. The result: duplicate content, dilution of PageRank, and loss of positions. Another common mistake: leaving internal resources (images, CSS, JS) on HTTP pages, which generates mixed content blocked by browsers.

Canonical tags and sitemaps must be updated to point to HTTPS URLs. Google Search Console requires adding a new HTTPS property distinct from the old HTTP one, along with transferring disavow or geographic targeting parameters. Finally, external backlinks often remain HTTP: even if 301 redirects pass most link equity, a campaign to update referencing sites improves PageRank transmission and reduces redirect jumps.

How to verify that the migration is complete and effective?

A post-migration audit should cover several checkpoints. Check that all indexed URLs in Google Search Console are indeed HTTPS, with no HTTP residues in the index. Test primary pages with mixed content tools (browsers in developer mode, online services like Why No Padlock) to detect unsecured resources.

Measure the impact on Core Web Vitals: sometimes, a poorly configured SSL/TLS layer adds latency. Verify proper HTTP/2 or HTTP/3 support, which require HTTPS and provide significant performance gains. Finally, monitor organic traffic and positions for 2-4 weeks post-migration to detect any anomalies. A well-executed HTTPS migration should not lead to any traffic loss; any drop signals a technical issue that needs urgent correction.

  • Install a valid SSL certificate (Let's Encrypt, commercial certificate, wildcard for subdomains)
  • Set up permanent 301 redirects from HTTP to HTTPS on all URLs
  • Update canonical tags, XML sitemaps, hreflang, and robots.txt files
  • Add the HTTPS property in Google Search Console and Bing Webmaster Tools
  • Fix all mixed content (images, scripts, CSS, iframes loaded over HTTP)
  • Check for HTTP/2 or HTTP/3 support to optimize performance
  • Launch a full crawl with Screaming Frog or equivalent to detect residual HTTP URLs
Migrating to HTTPS remains a technical undertaking despite tool simplifications. The stakes go beyond strict SEO: user trust, functional compatibility, and anticipation of regulatory developments. For complex sites (multi-domain e-commerce, platforms with multiple subdomains, migrations combined with a redesign), managing this project internally can mobilize significant resources and carry costly error risks. Engaging a specialized SEO agency ensures a secure transition, avoids traffic losses due to technical errors, and provides assistance on post-migration optimizations (HTTP/2, HSTS, SSL performance). A preliminary audit identifies blocking issues and allows for a progressive migration without negative impact.

❓ Frequently Asked Questions

Un site HTTP peut-il encore bien se positionner dans Google ?
Oui, l'absence de HTTPS n'entraîne pas de filtre ou de pénalité directe. Un site HTTP bien optimisé sur le contenu, l'autorité et la technique peut surpasser un site HTTPS médiocre. Cependant, à qualité égale, le HTTPS apporte un avantage compétitif.
Le passage au HTTPS fait-il perdre du trafic pendant la migration ?
Une migration bien exécutée (redirections 301, mise à jour des propriétés Search Console, correction des contenus mixtes) ne provoque aucune perte de trafic. Les erreurs techniques mal corrigées peuvent temporairement impacter les positions, d'où l'importance d'un audit rigoureux post-migration.
Les certificats SSL gratuits sont-ils suffisants pour le SEO ?
Oui, Google ne fait aucune distinction entre certificats gratuits (Let's Encrypt) et payants. Seul compte le chiffrement effectif. Les certificats EV ou OV peuvent afficher une validation étendue dans la barre d'adresse, utile pour la confiance utilisateur, mais sans impact SEO différencié.
Dois-je remigrer mes backlinks HTTP vers HTTPS ?
Pas obligatoire si les redirections 301 sont en place, car elles transmettent l'essentiel du PageRank. Mais mettre à jour les backlinks majeurs (liens éditoriaux, annuaires de qualité) réduit les sauts de redirection et améliore la transmission de jus.
Google va-t-il pénaliser le HTTP dans le futur ?
La déclaration laisse entendre que oui, sans donner de timeline. L'historique montre que Google prévient longtemps à l'avance avant de durcir les critères. Anticiper la migration reste la stratégie la plus prudente pour éviter un chantier d'urgence coûteux.
🏷 Related Topics
Domain Age & History HTTPS & Security AI & SEO JavaScript & Technical SEO Domain Name

🎥 From the same video 21

Other SEO insights extracted from this same Google Search Central video · duration 52 min · published on 06/10/2016

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