Does HTTPS really boost SEO rankings or is it just an SEO myth?

Is HTTPS really a ranking signal according to Google?

Google has confirmed it outright: HTTPS is indeed one of the ranking signals. This statement from Takeaki Kanaya, Google's Search Liaison for Japan, clears up some ambiguities that existed within the SEO community.

However, the secure protocol is not a major positioning lever. Its weight in the algorithm remains low, and no visible rise in search results should be expected after migration. Google insists: security first, ranking second.

Why does Google downplay the ranking impact of HTTPS?

Google's official stance is clear: they do not recommend migrating to HTTPS to improve your rankings. This nuance is crucial. The primary aim of the secure protocol is to protect user data while browsing.

In other words, if your only motivation for switching to HTTPS is to gain a few places in the SERPs, you may end up disappointed. The migration should be viewed as a modern technical prerequisite, not as a ranking tactic.

What’s the difference between a ranking factor and measurable impact?

A signal can exist in the algorithm without carrying much weight in the final balance. HTTPS is part of the hundreds of criteria evaluated, but its coefficient remains modest compared to backlinks, content, or user experience.

Google integrated this signal gradually and subtly. The intention was to encourage widespread adoption of the secure protocol without creating a significant competitive distortion between HTTP and HTTPS sites. Security should become a standard, not a competitive advantage.

• HTTPS is a confirmed ranking signal but its algorithm weight is marginal
• No spectacular rise in rankings should be expected after migration
• The primary objective of the protocol is user protection, not improving SEO
• Google does not recommend migrating solely for SEO reasons
• The signal exists among hundreds of others with a modest coefficient

Is this statement consistent with field observations?

Google's position matches what we've observed in audits for several years. Well-executed HTTPS migrations do not trigger significant jumps in rankings. Some sites even experience temporary fluctuations before stabilization.

What remains troubling is the disconnect between this minimizing communication and the reality of today’s web: Chrome now displays aggressive warnings on HTTP sites. Users flee these pages before even interacting with the content. The indirect impact on behavioral metrics (bounce rate, session time) may ultimately weigh more heavily than the HTTPS signal itself.

What nuances should be considered based on context?

Kanaya's statement applies to generalist sites, but certain sectors face specific constraints. eCommerce sites or those collecting personal data simply have no choice — HTTPS has become legally and UX mandatory.

For purely informational sites, the question arises differently. A blog without a form can technically remain on HTTP without immediate risk to ranking. But the “Not Secure” warning displayed in Chrome is enough to degrade user trust. The real impact lies there: in perception, not in pure algorithm.

[To be verified]: Google never communicates the exact weight of a signal. It’s impossible to quantify precisely how many “points” HTTPS adds to the overall formula.

In what cases does this rule not apply?

The rule holds for most standard migrations. But caution: a poorly managed HTTPS migration can lead to a sharp drop. Using 302 redirects instead of 301, unresolved mixed content, expired certificates — technical errors nullify all benefits and create indirect penalties.

Another edge case: sites operating in ultra-competitive markets where every micro-signal counts. In a tight SERP, HTTPS could shift a position from 4 to 3. It’s not spectacular, but it’s still tangible. Google says “low impact,” not “no impact.”

Should you migrate to HTTPS even without guaranteed ranking benefits?

Yes, absolutely. The question is no longer “if” but “when.” HTTPS has become a standard technical prerequisite, just like responsive design. Browsers visually penalize HTTP sites, which is reason enough to justify migration.

The calculation is simple: the cost of a migration (certificate, redirects, testing) remains modest compared to the risk of losing user trust. Visitors flee from security warnings before even reading your content. The indirect impact far exceeds the direct ranking signal.

What mistakes should be avoided during the HTTPS migration?

The technical migration must be flawless. A 302 redirect instead of a 301 sends the wrong signal to Google — the engine interprets this as temporary and does not transfer page authority. Result: sometimes a sharp drop in positions.

Mixed content is the other classic trap. Your site loads in HTTPS, but some resources (images, scripts) remain called in HTTP. Chrome blocks these elements, your design breaks, and user experience suffers. Google captures these negative signals via Core Web Vitals and behavioral metrics.

Last critical point: ensure all your backlinks point to the HTTPS version. Ideally, contact referring sites to update their links. Each 301 redirect consumes a bit of authority (even though Google has claimed otherwise for years — we still observe a slight loss).

How can you verify that the migration went well?

Start by scanning the entire site with Screaming Frog or equivalent to detect any mixed content. A single forgotten HTTP script can trigger a browser warning and ruin the user experience.

Next, monitor Google Search Console for at least 4 weeks. Check that the HTTPS property has properly replaced the old HTTP in your reports. Analyze coverage errors, crawl anomalies, drops in clicks. Any sharp variation should trigger an immediate investigation.

Finally, manually test your key pages across multiple browsers. Chrome, Firefox, Safari — each displays certificate or mixed content issues differently. What works on Chrome may crash on mobile Safari.

• Implement permanent 301 redirects of all HTTP URLs to HTTPS
• Resolve any mixed content (images, scripts, CSS called in HTTP)
• Update the sitemap.xml file with HTTPS URLs
• Declare the new HTTPS property in Google Search Console
• Check the SSL certificate (validity, complete chain of trust)
• Test the Core Web Vitals before/after to detect any performance regression