chore: remove trailing dots

main.go

@@ -253,7 +253,7 @@ func handler(w http.ResponseWriter, r *http.Request) {
 
 	d := dataStruct{
 		IP:            ip.String(),
-		Hostname:      hostname[0],
+		Hostname:      strings.TrimSuffix(hostname[0], "."),
 		ASN:           fmt.Sprintf("%d", asnRecord.AutonomousSystemNumber),
 		Organization:  asnRecord.AutonomousSystemOrganization,
 		Country:       cityRecord.Country.IsoCode,