NerdyData's crawlers render Javascript, ideal for identifying web technologies (cookies, variables, network requests, etc.).
Historical Reports use a vastly larger dataset, but is limted to raw HTML and HTTP headers. So while it won't contain dynamic content, you should expect more results due to the larger dataset.
Anything that's found in the raw HTML or HTTP headers of a website. It can be as simple as the domain + URL of websites containing any code. Or, we can extract any pattern found in the code and include it as columns in your report.