Quick answer

HTTPS is the protected form of HTTP commonly used on the web. It encrypts data in transit and helps a browser authenticate the server for the hostname in the connection.

Original example

Protection during transit

When a browser connects to https://example.com, HTTPS helps prevent someone on the network from casually reading or changing the traffic. It does not evaluate whether the page's advice is accurate.

What HTTPS protects

HTTPS combines HTTP with TLS to protect data while it travels between endpoints and to authenticate the server using certificates.

That protection is important but limited: a deceptive or compromised site can also use HTTPS, and data may still be handled after it reaches an endpoint.

Common misunderstandings

  • The padlock does not guarantee that a website is honest or safe in every respect.
  • HTTPS protects transport; it is not the same as encrypting data forever at rest.

Related answers

Sources

  • HTTPS - MDN Web Docs, accessed 2026-10-30

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