I probed every remote MCP server listed in the official registry — 10,716 endpoints — and then asked a question the aggregate numbers hide: when a listing is dead, where is it hosted?

The answer is not evenly distributed. It is not close to evenly distributed.

Failure rate by hosting platform

Counting an endpoint as failing if it returns a hard 404, fails DNS, times out, refuses the connection, or 5xxs:

Host