diff --git a/src/index.ts b/src/index.ts
index a8d1f9a..4e015f7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -58,13 +58,65 @@ function recurseElement(page: Page, el: Element) {
       });
     }
   }
-  if (
-    ["audio", "video", "img", "source", "iframe", "track"].includes(el.name)
-  ) {
+
+  if (["audio", "video"].includes(el.name)) {
+    const sources = getSources(el);
+    for (const source of sources) {
+      if (source.attribs.src) {
+        checkUrl(page, source, source.attribs.src);
+      } else {
+        report.things.push({
+          type: "media-no-src",
+          description: getHtml(rawHtml, source),
+        });
+      }
+    }
+  }
+  if (["picture"].includes(el.name)) {
+    const sources = getSources(el);
+    for (const source of sources) {
+      if (source.attribs.srcset) {
+        // TODO: implementar srcset #3
+      } else {
+        report.things.push({
+          type: "media-no-src",
+          description: getHtml(rawHtml, source),
+        });
+      }
+    }
+  }
+  if (["img"].includes(el.name)) {
+    if (el.attribs.srcset) {
+      // TODO: implementar srcset #3
+    }
+  }
+  if (["audio", "video"].includes(el.name)) {
+    const sources = getSources(el);
+    if (sources.length > 0) {
+      for (const source of sources) {
+        if (source.attribs.src) {
+          checkUrl(page, source, source.attribs.src);
+        } else {
+          report.things.push({
+            type: "media-no-src",
+            description: getHtml(rawHtml, source),
+          });
+        }
+      }
+    } else {
+      if (el.attribs.src) {
+        checkUrl(page, el, el.attribs.src);
+      } else {
+        report.things.push({
+          type: "media-no-src",
+          description: getHtml(rawHtml, el),
+        });
+      }
+    }
+  }
+  if (["img", "iframe", "track"].includes(el.name)) {
     if (el.attribs.src) {
       checkUrl(page, el, el.attribs.src);
-    } else if (el.attribs.srcset) {
-      // TODO: implementar srcset #3
     } else {
       report.things.push({
         type: "media-no-src",
@@ -80,6 +132,12 @@ function recurseElement(page: Page, el: Element) {
   }
 }
 
+function getSources(el: Element) {
+  return el.children.filter(
+    (c) => c.type === "tag" && c.name === "source"
+  ) as Element[];
+}
+
 function checkUrl({ report, rawHtml }: Page, el: Element, url: string) {
   if (isHttp(url)) {
     report.things.push({