http://ysshlyesehcnscptskrpai4iupxccuvfcpbxk37kclbs3rsaqmolzaid.onion/darknets.html
Inversely, if a site has almost no traffic, then just bumping traffic to that site will cause a similiar bump of traffic to that client hosting that site. Most adversaries do not have have that amount of network surveillance capacity, but some adversaries do have that - 5Eyes has it, China have that inside China, GCHQ within UKs borders, et.c.)