Quad9, the non-profit DNS resolver that answers queries with malicious-domain filtering built in, is leaving France.
Heise reports the decision follows a French court ruling that would require blocking at the DNS level — the kind of domain filtering French courts have been ordering with increasing frequency in copyright and content cases. Rather than apply the blocks, Quad9 has chosen to stop serving the country.
It puts the Switzerland-based resolver in a familiar position. Quad9 has contested DNS-blocking orders before, including a prolonged fight in Germany over whether it could be compelled to block a piracy site; its whole value proposition is that queries come back filtered for malware and phishing, and it has long argued that repurposing that same machinery into a general censorship tool changes what the service is.
France, meanwhile, has been among Europe's most aggressive jurisdictions for site blocking, with courts and regulators pushing obligations down the stack toward search engines, hosts, ISPs and now DNS resolvers.
French users who relied on Quad9 (9.9.9.9) for malware and phishing filtering will need another filtered resolver, and the withdrawal narrows the field of large non-commercial resolvers operating in the country.
The recurring question in the DNS industry is whether resolver-level blocking is usable at all as a policy instrument: it is blunt and borderless, it removes a domain for everyone on that resolver in that region, and it offers little of the transparency or procedural visibility a takedown at the origin would carry. Quad9's exit is one kind of answer — a security provider saying it would rather go than be the layer where the filtering happens.
