Reference

​​ Verify that signed exchanges are working

Make a request with the signed exchange request header:

1. Open a terminal and run the following command, replacing https://example.com with your domain:

2. Verify that the Content-Type in the response headers is application/signed-exchange;v=b3 rather than text/html.

​​ Certificate authority used with SXGs

Cloudflare uses Google for SXGs’ certificate issuance . Once SXGs is enabled, Cloudflare automatically adds the Certification Authority Authorization records on behalf of the zones. Refer to the following example below: