Its called USERLYTICS
Ok what they do is if u become their client, they will get one of their tester to record themselves live whilst analysing your site. The job of tester is basically to provide his 'experience' of your site which u can use as valuable feedback. So while he is shown browsing through your site, you will hear him making comments as a site visitor like his first impressions, his likes and dislikes about the site look, design and copy.
They provide one free sample test to check their service.i opted for it and got results. However because the girl who was used as tester for analysing my site seemed to have no kn owledge of direct response copy sites, her assessment of my site was very bleak and negative to say the least. So be ready for some harsh feedback if u submit your site as sample.