diff --git a/Rakefile b/Rakefile
index 1e1145a..0f13c4e 100644
--- a/Rakefile
+++ b/Rakefile
@@ -14,7 +14,10 @@ task :htmlproofer do
     # /Plugins.html can misbehave here in case of GitHub README.md anchors
     #     because of User-Agent handling, and changing User-Agent causes other
     #     unwanted side effects
-    check_external_hash: false
+    check_external_hash: false,
+    # status code 418 is sometimes returned by webservers performing anti-scrape methods, so it
+    # should assume the resource exists instead
+    ignore_status_codes: [ 418 ],
   }
 
   HTMLProofer.check_directory(compiledSitePath, options).run