Server Selection
Quick facts
Purpose
Server Selection
SRV is one of the DNS resource record (RR) types defined by RFC 2782.
Example
_sip._tcp.example.com. 3600 IN SRV 10 60 5060 sipserver.example.com.
Related record types
Common uses
Format
_sip._tcp.example.com. 3600 IN SRV 10 60 5060 sipserver.example.com.
| Field | Explanation |
|---|---|
| Priority | Lower values are preferred. |
| Weight | Relative weight among equal priorities. |
| Port | The port the service listens on. |
| Target | Hostname providing the service. |
Common services
Frequently asked questions
Service discovery, SIP and XMPP federation
In the DNS management panel of your registrar or DNS provider (for example Cloudflare or Route53).
Sources & standards
Updated 2026-09-13
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