I don't use it for any production site, but it works really well for development, though. I can run multiple docker services on my local machine, add a cloudflared service for each of them and forget about port conflicts, etc. To do that without cloudflared, I'd have to setup a traefik proxy and mess with my home router.

Yeah, the centralization of public Internet infrastructure around Cloud flare has been concerning, not only as a single point of failure but also in terms of consolidation of trust.

As a prior student workout a public IP deep behind several NATs, with little funds for self hosting hobbies, these kinds of tunnel services were a handy gateway in getting started.

Although, I hope ISP adoption of IPv6 or cheaper bandwidth quotas for VPS providers help compete on this front for self hosting networking.