🆚 CORS vs. HTTP 2+

Cross-Origin Resource Sharing (CORS) is an HTTP header-based mechanism used to safely bypass same-origin policy and allow requests to other domains.

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.

• ⭐ 4th most popular in Samoa in the Networking category.
• ⭐ 4th most popular in Saint Helena in the Networking category.
• ⭐ 6th most popular in New Caledonia in the Networking category.
• ⭐ 7th most popular in Mongolia in the Networking category.
• ⭐ 7th most popular in Jordan 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.

• CORS vs. TLS
• CORS vs. Cookies
• CORS vs. HSTS
• CORS vs. ♯ ETag
• CORS vs. CSP

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

• CORS technology profile
• W3C company profile

• HTTP 2+ technology profile
• IETF company profile