Criteria for Search Result ranking in HTML5?

[straygoat]

Hello everyone,

Does anyone know the criteria that is used to rank the search results in HTML5 help? I've asked MadCap support but the reply was a bit vague. I assumed Metadata Title would be most important, then Topic title, then Headings 1-n in order, then search term density in the meta description. Doesn't appear to work like that though.