diff --git a/utils.go b/utils.go
index 287b8e7..9f524f2 100644
--- a/utils.go
+++ b/utils.go
@@ -120,41 +120,41 @@ var kindNIPs = map[int]string{
 type ClientReference struct {
 	ID   string
 	Name string
-	URL  string
+	URL  template.URL
 }
 
 func generateClientList(code string, event *nostr.Event) []ClientReference {
 	if event.Kind == 1 || event.Kind == 6 {
 		return []ClientReference{
-			{ID: "native", Name: "Your native client", URL: "nostr:" + code},
-			{ID: "snort", Name: "Snort", URL: "https://Snort.social/e/" + code},
-			{ID: "nostrudel", Name: "Nostrudel", URL: "https://nostrudel.ninja/#/n/" + code},
-			{ID: "satellite", Name: "Satellite", URL: "https://satellite.earth/thread/" + event.ID},
-			{ID: "coracle", Name: "Coracle", URL: "https://coracle.social/" + code},
-			{ID: "primal", Name: "Primal", URL: "https://primal.net/thread/" + event.ID},
-			{ID: "nostter", Name: "Nostter", URL: "https://nostter.vercel.app/" + code},
-			{ID: "highlighter", Name: "Highlighter", URL: "https://highlighter.com/a/" + code},
-			{ID: "iris", Name: "Iris", URL: "https://iris.to/" + code},
+			{ID: "native", Name: "Your native client", URL: template.URL("nostr:" + code)},
+			{ID: "snort", Name: "Snort", URL: template.URL("https://Snort.social/e/" + code)},
+			{ID: "nostrudel", Name: "Nostrudel", URL: template.URL("https://nostrudel.ninja/#/n/" + code)},
+			{ID: "satellite", Name: "Satellite", URL: template.URL("https://satellite.earth/thread/" + event.ID)},
+			{ID: "coracle", Name: "Coracle", URL: template.URL("https://coracle.social/" + code)},
+			{ID: "primal", Name: "Primal", URL: template.URL("https://primal.net/thread/" + event.ID)},
+			{ID: "nostter", Name: "Nostter", URL: template.URL("https://nostter.vercel.app/" + code)},
+			{ID: "highlighter", Name: "Highlighter", URL: template.URL("https://highlighter.com/a/" + code)},
+			{ID: "iris", Name: "Iris", URL: template.URL("https://iris.to/" + code)},
 		}
 	} else if event.Kind == 0 {
 		return []ClientReference{
-			{ID: "native", Name: "Your native client", URL: "nostr:" + code},
-			{ID: "nosta", Name: "Nosta", URL: "https://nosta.me/" + code},
-			{ID: "snort", Name: "Snort", URL: "https://snort.social/p/" + code},
-			{ID: "satellite", Name: "Satellite", URL: "https://satellite.earth/@" + code},
-			{ID: "coracle", Name: "Coracle", URL: "https://coracle.social/" + code},
-			{ID: "primal", Name: "Primal", URL: "https://primal.net/profile/" + event.PubKey},
-			{ID: "nostrudel", Name: "Nostrudel", URL: "https://nostrudel.ninja/#/u/" + code},
-			{ID: "nostter", Name: "Nostter", URL: "https://nostter.vercel.app/" + code},
-			{ID: "iris", Name: "Iris", URL: "https://iris.to/" + code},
+			{ID: "native", Name: "Your native client", URL: template.URL("nostr:" + code)},
+			{ID: "nosta", Name: "Nosta", URL: template.URL("https://nosta.me/" + code)},
+			{ID: "snort", Name: "Snort", URL: template.URL("https://snort.social/p/" + code)},
+			{ID: "satellite", Name: "Satellite", URL: template.URL("https://satellite.earth/@" + code)},
+			{ID: "coracle", Name: "Coracle", URL: template.URL("https://coracle.social/" + code)},
+			{ID: "primal", Name: "Primal", URL: template.URL("https://primal.net/profile/" + event.PubKey)},
+			{ID: "nostrudel", Name: "Nostrudel", URL: template.URL("https://nostrudel.ninja/#/u/" + code)},
+			{ID: "nostter", Name: "Nostter", URL: template.URL("https://nostter.vercel.app/" + code)},
+			{ID: "iris", Name: "Iris", URL: template.URL("https://iris.to/" + code)},
 		}
 	} else if event.Kind == 30023 || event.Kind == 30024 {
 		return []ClientReference{
-			{ID: "native", Name: "Your native client", URL: "nostr:" + code},
-			{ID: "yakihonne", Name: "YakiHonne", URL: "https://yakihonne.com/article/" + code},
-			{ID: "habla", Name: "Habla", URL: "https://habla.news/a/" + code},
-			{ID: "highlighter", Name: "Highlighter", URL: "https://highlighter.com/a/" + code},
-			{ID: "blogstack", Name: "Blogstack", URL: "https://blogstack.io/" + code},
+			{ID: "native", Name: "Your native client", URL: template.URL("nostr:" + code)},
+			{ID: "yakihonne", Name: "YakiHonne", URL: template.URL("https://yakihonne.com/article/" + code)},
+			{ID: "habla", Name: "Habla", URL: template.URL("https://habla.news/a/" + code)},
+			{ID: "highlighter", Name: "Highlighter", URL: template.URL("https://highlighter.com/a/" + code)},
+			{ID: "blogstack", Name: "Blogstack", URL: template.URL("https://blogstack.io/" + code)},
 		}
 	}
 	return nil
@@ -162,7 +162,7 @@ func generateClientList(code string, event *nostr.Event) []ClientReference {
 
 func generateRelayBrowserClientList(host string) []ClientReference {
 	return []ClientReference{
-		{ID: "coracle", Name: "Coracle", URL: "https://coracle.social/relays/" + host},
+		{ID: "coracle", Name: "Coracle", URL: template.URL("https://coracle.social/relays/" + host)},
 	}
 }