There is no explicit IAB category for Gambling and Alcohol in v1 of the IAB Taxonomy. What seems to have been informally agreed is that:

- 'IAB9-7 Card Games' also includes Gambling

- 'IAB8-5 — Cocktails/Beer' and 'IAB8-18 — Wine' means Alcohol.

(Later taxonomy versions have proper values but not everyone supports these)

These blocked categories should be passed to all DSPs by your SSP.

If your SSP cannot block them then get a new SSP.