⚖️ Comparison · Updated for 2026
HTTP vs HTTPS
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Quick answer: HTTPS is HTTP encrypted with TLS. Modern browsers (Chrome 68+, 2018) mark HTTP sites as 'Not secure'. Google has ranked HTTPS over HTTP since 2014. As of 2026, ~95% of all browser traffic is HTTPS. There's no good reason to serve a new site over HTTP.
Decision guide — when to use which
Use HTTP when…
Almost never. Local development only.
Use HTTPS when…
All public-facing websites, all APIs, all browser-served content.
📊 Side-by-side comparison
| Aspect | HTTP | HTTPS |
|---|---|---|
| Encryption | None | TLS 1.2/1.3 mandated |
| Port | 80 | 443 |
| Browser indicator | 'Not secure' warning | Padlock |
| SEO impact | Penalised since 2014 | Ranking factor |
| Cost | — | Free via Let's Encrypt |
Frequently asked
?
Do small/personal sites really need HTTPS?
Yes. Browsers actively warn users about HTTP sites. Search engines downrank them. There's zero cost and one-click setup on Cloudflare or Let's Encrypt. There's no scenario in 2026 where HTTP is the right choice for a public site.
?
Is HTTP/3 different?
HTTP/3 is the protocol version, not the security layer. HTTP/3 runs over QUIC (UDP-based) instead of TCP. It's always encrypted. Mainstream browser support since 2022.
Reviewed for 2026. All conversion factors and historical references verified against official sources (ISO standards, government weights & measures legislation, IEC technical specifications). Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.