Switzerland Gambling — Enforcement: How hard does the regulator enforce?

The ESBK and Gespa maintain a joint blacklist of unauthorised gambling domains, operated under a general ruling issued pursuant to Federal Gambling Act Article 86ff and Gambling Ordinance Article 88ff, which requires Swiss internet service providers to apply DNS-level blocking against listed domains. As published on 25 August 2026 the blacklist held 3,567 unauthorised domains, an increase of more than 1,000 during 2026. A further 376 domains were added in an update reported 25 February 2026, and this addition marked the first extension of the enforcement mechanism beyond offshore casino and sportsbook operator domains to affiliate websites that direct local users toward them. The accessory-liability basis for this extension rests on the same Article 86ff general-ruling mechanism, now read to reach intermediaries that facilitate access to unlicensed gambling rather than only the unlicensed operators themselves. This is a material widening of the enforcement perimeter: an affiliate site can now be blocked for driving traffic to an unauthorised operator, independent of any direct contractual or licensing relationship between the affiliate and that operator. The general ruling mechanism is administratively adjustable rather than requiring legislative change, so further scope expansions of this kind remain plausible without a change to the underlying enabling statute, which itself remains a durable, unchanged instrument.

Switzerland's enforcement architecture against unlicensed online gambling rests on the same civil-law statutory-licensing stack that underpins market access: the Geldspielgesetz makes unauthorised operation itself an offence, rather than relying on a secondary licence-breach theory. This cycle, ESBK confirmed a renewed and expanded 2026 joint enforcement campaign conducted with Gespa, the inter-canton inspectorate for lotteries and sports betting, extending the illegal-domain blacklist beyond 3,000 unauthorised sites and formalising ISP-level DNS-blocking coordination across the DACH region, alongside a consumer-awareness campaign steering players toward licensed operators. This finding is assessed as probable rather than confirmed, since it is sourced from trade press rather than a directly retrieved ESBK enforcement-register page this cycle — a gap the research explicitly flags as a T1 sourcing shortfall rather than a permanent structural limitation. No licence-revocation event or enforcement action against a licensed concession holder was identified. The formalisation of cross-border ISP-blocking coordination signals growing institutional capacity for extraterritorial-style enforcement against offshore operators, reinforcing rather than altering the existing legal basis for blocking action.

Switzerland's exposure to unregulated-sector enforcement risk is concentrated entirely on the offshore, unlicensed online casino segment rather than on licensed concession-extension holders. The ESBK and Gespa rely on a Gambling Act-based DNS and access-blocking mechanism, corroborated at primary-source level for the blocking power itself, to deny network access to unlicensed domains rather than pursue direct sanctions against offshore operators outside Swiss jurisdiction. This cycle's renewed 2026 campaign, involving direct coordination with internet service providers across the DACH region and a blacklist exceeding three thousand domains, is reported with probable confidence from trade press rather than confirmed by a fresh primary ESBK statement, and represents an escalation in enforcement intensity rather than any new legal theory.