diff --git a/handlers.go b/handlers.go
index cf0b00d..0c94ad6 100644
--- a/handlers.go
+++ b/handlers.go
@@ -282,6 +282,14 @@ func (rl *Relay) HandleNIP11(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/nostr+json")
 
 	info := *rl.Info
+
+	if len(rl.DeleteEvent) > 0 {
+		info.SupportedNIPs = append(info.SupportedNIPs, 9)
+	}
+	if len(rl.CountEvents) > 0 {
+		info.SupportedNIPs = append(info.SupportedNIPs, 45)
+	}
+
 	for _, ovw := range rl.OverwriteRelayInformation {
 		info = ovw(r.Context(), r, info)
 	}