Definition

HTTPS

Updated Feb 9, 2026

Definition

HTTPS (HyperText Transfer Protocol Secure) encrypts the connection between a browser and a server using TLS, protecting data in transit.

Plain English

It's the padlock in the address bar. It means traffic between the user and your site is encrypted.

Why it matters

  • HTTPS is a baseline ranking signal for search engines.
  • Browsers warn users on non-HTTPS pages.
  • Mixed content (HTTP resources on HTTPS pages) can break security.