32 hosts officially but there are ways of protecting onion websites (caching reverse proxies with some sort of challenge) that protects drug market places that

32 hosts officially but there are ways of protecting onion websites (caching reverse proxies with some sort of challenge) that protects drug market places that have governments trying to DDOS them offline. Not to mention that Tor has been working on anti-DDOS (From what I remember that will be based on proof-of-work) which will massively increase the cost of DDOS attacks against hidden services.