diff --git a/src/utils/is.js b/src/utils/is.js
index 876ab47..00eb89b 100644
--- a/src/utils/is.js
+++ b/src/utils/is.js
@@ -69,7 +69,5 @@ export const isDomainOrSubdomain = (destination, original) => {
 	const orig = new URL(original).hostname;
 	const dest = new URL(destination).hostname;
 
-	return orig === dest || (
-		orig[orig.length - dest.length - 1] === '.' && orig.endsWith(dest)
-	);
+	return orig === dest || orig.endsWith(`.${dest}`);
 };