I approve of that site.
Voted by millions of real people, see the "how it works" section under "help".
Been referencing this site for years when expanding my collection, also Discogs and the Stevehoffman forums.
On Discogs you can find information about what year the pressing is from by Label, Catalog Number, Barcode and Matrix.
On SteveHoffman forum you can find the best pressing of the CD/Vinyl according to people.
When you google "best Beatles cd pressing" you usually get stevehoffman results and then reference that with Discogs to find the earliest pressing of a CD which is usually non-remastered and truest to the original master tapes.