missileer.watch is a niche site run by an individual who monitors and posts emergency action messages (EAMs) broadcast over the HF Global Communications System — think shortwave radio messages to military aircraft. It's essentially a public archive of signals the operator has copied off the air.
For that kind of hobby project, the site looks well put together. It names the operator (Daniel Frenkel), gives a contact email, and explains what data it does and doesn't collect. There are no ads, no products for sale, and no payment forms. The security setup is solid, with modern encryption and protections.
The biggest caveat is the domain was registered just 30 days ago. That doesn't make it a scam — new hobby sites launch all the time — but it does mean you're looking at a site with no established reputation. If you're just curious about the radio data, you'll probably find it interesting and harmless. Just keep in mind that this is a one-person operation in its first month, not an established institution.