Black Market
Black markets prohibit online gambling outright or reserve it for state monopolies; serving them is illegal for operators and, in various regimes, for the marketers who channel players there.
Why the term earns glossary space
Channelization — the share of gambling demand captured by legal offers — is the industry’s central policy argument: overtaxed or over-restricted regulated markets push players to unlicensed operators, which is the black market growing inside nominally regulated countries. That framing drives real policy (tax-rate debates, product-restriction reviews) and real enforcement (payment blocking, ISP blocking, marketing prosecutions). Serious businesses simply don’t build on prohibited GEOs; the appearance of “[banned market] casino” affiliate content is a compliance-monitoring red flag, not a growth channel.