🆚 HSTS vs. HTTP 2+

The HTTP Strict Transport Security (HSTS) standard is a web security mechanism that ensures a user's browser always connects to a website using HTTPS, preventing insecure HTTP access.

It is enforced through the Strict-Transport-Security response header, which defines a policy duration, can apply to all subdomains, automatically upgrades HTTP requests to HTTPS, and protects against protocol downgrade attacks and cookie hijacking.

HTTP (Hypertext Transfer Protocol) is an application-layer protocol used to transfer resources such as HTML documents, images, and other web content, forming the foundation of data communication in web browsers.

It uses a stateless request-response model between clients and servers, defines standard request methods such as GET and POST, uses headers for metadata and caching control, and typically operates over TCP or TLS in the case of HTTPS.

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Popularity

Determined by the number of sites using each technology.

• 🥈 Second most popular in Vatican in the Networking category.
• 🥉 Third most popular in Switzerland in the Networking category.
• 🥉 Third most popular in Finland in the Networking category.
• 🥉 Third most popular in Iceland in the Networking category.
• 🥉 Third most popular in Isle of Man in the Networking category.

• 🥇 Most popular in Indonesia in the Networking category.
• 🥇 Most popular in Cambodia in the Networking category.
• 🥇 Most popular in Saint Helena in the Networking category.
• 🥇 Most popular in Palau in the Networking category.
• 🥇 Most popular in Brunei Darussalam in the Networking category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• HSTS vs. TLS
• HSTS vs. Cookies
• HSTS vs. ♯ ETag
• HSTS vs. CSP
• HSTS vs. ↪ Redirect

• HTTP 2+ vs. TLS
• HTTP 2+ vs. Cookies
• HTTP 2+ vs. ♯ ETag
• HTTP 2+ vs. CSP
• HTTP 2+ vs. QUIC

• HSTS technology profile
• IETF company profile

• HTTP 2+ technology profile
• IETF company profile