I’m the CEO of Viprinet. We are a manufacturer of VPN Routers. Until now, we are shipping our routers with self-signed HTTPS certificates. Let’s encrypt would enable us and our customers to be safer. What we would like to do is that every of our router after getting configured by the customer would request a TLS certificate for SERIALNUMMER.ourdomain.tld. Dyndns-like, the router would update it’s IP with our DNS, and the customer therefore then would be able to always reach his router securely at https://SERIALNUMBER.ourdomain.tld.
(In addition we would support the user using his own domain instead, but by default we’d base this on the device serial number + ourdomain.tld).
The problem now is the current rate-limit limitation of 5 certificates per domain. If we ship this feature, there obviously over time would be hundreds to thousands of certificates.
We really think that Let’s Encrypt could be a nice way to make the configuration interfaces of routers safer by default, which would be a huge step forward for the Internet as a whole - after all, it’s routers that are attacked by all sorts of black hat organizations.
So, is there any way to get the limit lifted for a specific domain, and where could we request this?