diff --git a/blob-feature-check.js b/blob-feature-check.js
index 0b9edae..562ba1b 100644
--- a/blob-feature-check.js
+++ b/blob-feature-check.js
@@ -1,3 +1,10 @@
+/**
+ * Blob Feature Check v1.0.0
+ *
+ * Released into the public domain.
+ * http://unlicense.org
+ */
+
 var svg = new Blob(
   ["<svg xmlns='http://www.w3.org/2000/svg'></svg>"],
   {type: "image/svg+xml;charset=utf-8"}