Error Level
Principle
Message
Code snippet
Techniques
error
Understandable
The html element should have a lang or xml:lang attribute which describes the language of the document.
<html><head><me a charset="utf-8"><title&g ;Sign Up for Pay...</html>
H57
error
Robust
Anchor element found with no link content and no name and/or ID attribute.
<a class="country US" data-reactid="100"></a&g ;
H91