HTTPS RR

HTTPS RR (HTTPS Resource Records) are a type of DNS record that delivers configuration information and parameters for how to access a service via {{Glossary("HTTPS")}}.

An HTTPS RR can be used to optimize the process of connecting to a service using HTTPS. Further, the presence of an HTTPS RR signals that all useful {{Glossary("HTTP")}} resources on the origin are reachable over HTTPS, which in turn means that a browser can safely upgrade connections to the domain from HTTP to HTTPS.

See also

• {{RFC(9460, "Service Binding and Parameter Specification via the DNS (SVCB and HTTPS Resource Records)")}}
• Strict Transport Security vs. HTTPS Resource Records: the showdown (Emily M. Stark blog)
• Related glossary terms:
  • {{glossary("TLS")}}