🆚 CORS vs. TLS

TLS is much more popular than CORS.
TLS is more popular in all countries.
CORS is particularly popular in Brazil, India, and China.

Statistics based on 4M+ analyzed websites. About this data

Type

Networking technology

About

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

Transport Layer Security (TLS) is a cryptographic protocol that provides end-to-end encryption of data transmitted over the internet, ensuring confidentiality, integrity, and authentication between communicating systems.

It is used in HTTPS to secure communication between browsers and servers, combining asymmetric cryptography for key exchange, symmetric encryption for data transfer, and digital certificates to verify server identity.

Headquarters

Cambridge, Massachusetts, United States

Fremont, California, United States

Website

fetch.spec.whatwg.org/

datatracker.ietf.org/wg/tls/about/

Popularity

Determined by the number of sites using each technology.

TLS networking technology is 24 times more popular than CORS.

Total websites

Market share

Networking

Popularity by country

Determined by the number of sites detected from each country.

TLS is more popular than CORS in all countries.

United States

Germany

Japan

United Kingdom

France

Russia

Netherlands

Spain

Italy

Australia

Awards

⭐ 4th most popular in Saint Helena in the Networking category.
⭐ 7th most popular in Thailand in the Networking category.
⭐ 7th most popular in Mongolia in the Networking category.
⭐ 7th most popular in Jordan in the Networking category.
⭐ 7th most popular in Lebanon in the Networking category.

🥇 Most popular in the United States in the Networking category.
🥇 Most popular in Germany in the Networking category.
🥇 Most popular in Japan in the Networking category.
🥇 Most popular in the United Kingdom in the Networking category.
🥇 Most popular in France in the Networking category.

Popularity by domain category

Determined by the number of sites in each category.

TLS is more popular among sites focused on business, online shopping, and education and reference, while CORS is more commonly used on marketing and merchandising, travel, and sports sites.

Business

Online Shopping

Education/Reference

Blogs/Wiki

Internet Services

Entertainment

Health

Software/Hardware

General News

Non-Profit/Advocacy/NGO

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#22

#48

#57

#67

#96

Name

Rank