diff --git a/net/url/url.go b/net/url/url.go
new file mode 100644
index 0000000..0ea04a6
--- /dev/null
+++ b/net/url/url.go
@@ -0,0 +1,20 @@
+package url
+
+import (
+	"net/url"
+	"path"
+)
+
+// Join is concat URL string and path
+// ex) http://127.0.0.1/ and /entry
+func Join(u string, p string) (string, error) {
+	var err error
+	var rURL *url.URL
+
+	if rURL, err = url.Parse(u); nil != err {
+		return "", err
+	}
+
+	rURL.Path = path.Join(rURL.Path, p)
+	return rURL.String(), nil
+}