diff --git a/src/index.ts b/src/index.ts
index ee0554c..ae4908b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -46,7 +46,7 @@ function recurseElement(page: Page, el: Element) {
       });
     }
   }
-  if (["audio", "video", "img", "source"].includes(el.name)) {
+  if (["audio", "video", "img", "source", "iframe"].includes(el.name)) {
     if (el.attribs.src) {
       checkUrl(page, el, el.attribs.src);
     } else {