🆚 HSTS vs. HTTP 2+
- 📈 HTTP 2+ is three times more popular than HSTS.
- 🌎 HTTP 2+ is more popular in the United States, Germany, and the United Kingdom.
- 🌍 HSTS is more popular in Vatican and DPR Korea.
HTTP 2+Type
About
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.
Headquarters
datatracker.ietf.orgCategories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- 🥈 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 Isle of Man in the Networking category.
- 🥉 Third most popular in Saint Helena 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.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Cookies
CSP
QUIC🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,375,483 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.