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Last updated: April 7, 2026

HTTP vs HTTPS — What's the Difference?

Quick Answer

HTTPS is HTTP with TLS/SSL encryption. HTTP sends data in plain text — anyone on the network can read it. HTTPS encrypts all data in transit, verifies server identity via certificates, and prevents man-in-the-middle attacks. Every website should use HTTPS — Google requires it for SEO, and browsers show "Not Secure" for HTTP sites.

HTTP vs HTTPS — Side by Side

FeatureHTTPHTTPS
EncryptionNo — plain textYes — TLS encryption
AuthenticationNo server identity verificationCertificate verifies server identity
Port80443
Data integrityNo — data can be modified in transitYes — TLS MAC prevents tampering
SEOPenalized by GooglePositive ranking signal
Browser warning"Not Secure" in address barPadlock icon
SpeedSlightly faster (no handshake)TLS 1.3 minimizes overhead
Cookie securityCookies can be stolenSecure + HttpOnly cookies protected

Verdict

Always use HTTPS. There is no legitimate reason to use HTTP for any website in 2026. Free TLS certificates from Let's Encrypt, automatic HTTPS from Vercel/Netlify/Cloudflare, and performance improvements in TLS 1.3 eliminate any remaining arguments for HTTP.

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