diff --git a/xioc/funcs.go b/xioc/funcs.go
index 9ad22cb..b854ca7 100644
--- a/xioc/funcs.go
+++ b/xioc/funcs.go
@@ -140,6 +140,11 @@ func ExtractURLs(text string) []string {
 		url = strings.Replace(url, ":// ", "://", -1)
 		url = strings.Replace(url, "[com]", "com", -1)
 
+		if !strings.Contains(url, ".") && // check for domain without mutual calls
+			len(ExtractIPv4s(url)) == 0 &&
+			len(ExtractIPv6s(url)) == 0 {
+			continue
+		}
 
 		if !resultSet[url] {
 			resultSet[url] = true
diff --git a/xioc/tests.json b/xioc/tests.json
index 85d4be9..b29e8fe 100644
--- a/xioc/tests.json
+++ b/xioc/tests.json
@@ -555,4 +555,6 @@
     "urls": ["http://feeds.rapidfeeds.com/88604/"],
     "domains": ["feeds.rapidfeeds.com"]
   },
+  "ed to enter http:// or https:// or www.). Clic": {},
+  "http://:": {}
 }