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.
HTML issues tagged as lt.
The < and > characters are reserved for HTML tags, so if you need to use them as content, they should be escaped as < and > respectively.
For example, to illustrate the mathematical truth that 1 < 2 in HTML, we can write it this way:
<p>1 < 2</p>