dns
DNS SVCB and HTTPS Records Explained: How to Advertise HTTP/3 and Improve Connection Performance
DNS SVCB and HTTPS records (defined in RFC 9460) let websites advertise modern protocols like HTTP/3 and QUIC directly from the DNS layer, trimming connection latency and improving resilience. This article explains how they work, when to use them, and how to implement them correctly with practical examples.
Sep 4, 2026
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