Oh yeah, several years ago I saw a lovely website of a Nevada brothel (not all but only some counties in Nevada have legal prostitution).

It was made the way high quality small business web sites are made, with care and attention.

They boasted how the girls do not have to live on the premises, unlike in other brothels. In other words, they have more freedom (an analogy with food - this is how free range eggs are advertised).

Each woman had a portfolio of perfectly tasteful photos. For the most part, they looked sweet, the "girl next door" type, probably because of the kind of rugged clientele they were targeting. I imagine that if you were to open a brothel on Manhattan, that kind of sweetness and innocence would not be called for - you would need dominatrix-type women with whips on Manhattan, ha!

They boasted having repeat clients and the site had customer testimonials.

In other words, it was just like a normal website of a normal small business.

I doubt that people would review brothels on Yelp - but likewise people tend not to review p-docs. Yelp is full of restaurant reviews, but not of psychiatry/psychology practitioner reviews. Why? Privacy and stigma. The same would apply to brothels.

I actually did type "escorts" into the search box of Yelp SF, and... the top 1 result is Wells Fargo bank where customer service reps escort clients to the door.