The Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site, and Sec-Fetch-User HTTP headers provide extra information about the way a request was made, to help servers reject certain kinds of malicious requests.

Learning resources on MDN

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Browser support

• Chrome 80 Released on 2020-02-04
• Chrome Android 80 Released on 2020-02-04
• Edge 80 Released on 2020-02-07
• Firefox 90 Released on 2021-07-13
• Firefox for Android 90 Released on 2021-07-13
• Safari 16.4 Released on 2023-03-27
• Safari on iOS 16.4 Released on 2023-03-27

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature