diff --git a/gallery_dl/extractor/motherless.py b/gallery_dl/extractor/motherless.py
index c81a4d15..48137ced 100644
--- a/gallery_dl/extractor/motherless.py
+++ b/gallery_dl/extractor/motherless.py
@@ -9,7 +9,7 @@
 """Extractors for https://motherless.com/"""
 
 from .common import Extractor, Message
-from .. import text, util
+from .. import text, util, exception
 from ..cache import memcache
 from datetime import timedelta
 
@@ -23,6 +23,17 @@ class MotherlessExtractor(Extractor):
     filename_fmt = "{id} {title}.{extension}"
     archive_fmt = "{id}"
 
+    def request(self, url, **kwargs):
+        response = Extractor.request(self, url, **kwargs)
+
+        content = response.content
+        if (b'<div class="error-page' in content or
+                b">The page you're looking for cannot be found.<" in content):
+            raise exception.NotFoundError("page")
+
+        self.request = Extractor.request.__get__(self)
+        return response
+
     def _extract_media(self, path):
         url = f"{self.root}/{path}"
         page = self.request(url).text
diff --git a/test/results/motherless.py b/test/results/motherless.py
index b4742ad3..ec619349 100644
--- a/test/results/motherless.py
+++ b/test/results/motherless.py
@@ -5,6 +5,7 @@
 # published by the Free Software Foundation.
 
 from gallery_dl.extractor import motherless
+from gallery_dl import exception
 
 
 __tests__ = (
@@ -76,6 +77,12 @@ __tests__ = (
     "views"     : range(100, 2000),
 },
 
+{
+    "#url"     : "https://motherless.com/8850983",
+    "#class"   : motherless.MotherlessMediaExtractor,
+    "#exception": exception.NotFoundError,
+},
+
 {
     "#url"  : "https://motherless.com/G444B6FA",
     "#class": motherless.MotherlessGalleryExtractor,
@@ -90,7 +97,7 @@ __tests__ = (
     "#class": motherless.MotherlessGalleryExtractor,
     "#pattern": r"https://cdn5-images\.motherlessmedia\.com/images/[^/]+\.(jpg|jpeg|png|gif)",
     "#range"  : "1-100",
-    "#count"  : 10,
+    "#count"  : range(5, 50),
 
     "count"        : range(5, 50),
     "extension"    : {"jpg", "jpeg", "png", "gif"},
@@ -110,7 +117,7 @@ __tests__ = (
     "#class": motherless.MotherlessGalleryExtractor,
     "#pattern": r"https://cdn5-videos\.motherlessmedia\.com/videos/[^/]+\.mp4(?:\?.*)?",
     "#range"  : "1-100",
-    "#count"  : 29,
+    "#count"  : range(20, 40),
 
     "count"        : range(20, 100),
     "extension"    : "mp4",
@@ -125,6 +132,12 @@ __tests__ = (
     "url"          : r"re:https://cdn5-videos.motherlessmedia.com/videos/[^/]+\.mp4(?:\?.*)?",
 },
 
+{
+    "#url"     : "https://motherless.com/GI466D59F",
+    "#class"   : motherless.MotherlessGalleryExtractor,
+    "#exception": exception.NotFoundError,
+},
+
 {
     "#url"  : "https://motherless.com/g/bump___grind",
     "#class": motherless.MotherlessGroupExtractor,