diff --git a/cmd/derper/derper.go b/cmd/derper/derper.go
index db1495fce..76151175c 100644
--- a/cmd/derper/derper.go
+++ b/cmd/derper/derper.go
@@ -2,6 +2,12 @@
// SPDX-License-Identifier: BSD-3-Clause
// The derper binary is a simple DERP server.
+//
+// For more information, see:
+//
+// - About: https://tailscale.com/kb/1232/derp-servers
+// - Protocol & Go docs: https://pkg.go.dev/tailscale.com/derp
+// - Running a DERP server: https://github.com/tailscale/tailscale/tree/main/cmd/derper#derp
package main // import "tailscale.com/cmd/derper"
import (
@@ -209,11 +215,16 @@ func main() {
io.WriteString(w, `
DERP
- This is a
- Tailscale
- DERP
- server.
+ This is a Tailscale DERP server.
+
+ Documentation:
+
+
`)
if !*runDERP {
io.WriteString(w, `Status: disabled
`)