[nirui]

If I'm allowed to guess, Tor Browser has Meek built in and it includes a few services hosted on Microsoft cloud. As far as I understand it, it can be quite expensive consider the total amount of traffic those Meek server must relay.

However, I wouldn't consider it "censorship-resistance".

From reading their Technical Overview document, I got the impression that they put a lot of faith on Domain Fronting which might not be a good thing

> ... the censor cannot block the broker without blocking all of Google, or all of Amazon, hence collateral freedom.

Yeah, true ... true ...