With a few months having gone by since I last checked, I figured I'd do an update on who's currently using post-quantum cryptography on the web. In brief, about 39% of the top 100K domains now offer X25519MLKEM768 (up from about 28% in March). This is primarily the addition of Amazon Cloudfront (the only service to also offer SecP256r1MLKEM768) and Fastly, since Akamai is still opt-in. But we also note Facebook having started to support #PQC.

netmeister.org/blog/pqc-use-20…