HTML Checking for Large Sites
Rocket Validator automatically scans your sites for accessibility issues using the W3C Validator,
hosted on our own servers and integrated into our web crawler.
End tag “br”.
The <br> tag inserts a line break, and it’s self-closing so you can use either <br> or <br /> but </br> is invalid.
First line<br>
Second line<br />
Third line is invalid</br>