Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028.
This change is being made along with the rest of the industry, as required by the CA/Browser Forum Baseline Requirements, which set the technical requirements that we must follow. All publicly-trusted Certificate Authorities like Let’s Encrypt will be making similar changes. Reducing how long certificates are valid for helps improve the security of the internet, by limiting the scope of compromise, and making certificate revocation technologies more efficient.
not all phones support manually adding certs
Which phones. Android and iOS could.
I don’t know about iOS, but Android had support for this in the past. Now the support is partial. It’s no longer possible to install system-level certificates. Or at least they made it extremely inconvenient.
That’s a complaint about those phones not PKI in general then. Though it’s surprising their enterprise support won’t let you since that is (or was) a fairly common thing for businesses to do.
That’s a fair point. However, on the practical side, it’s sad that I would have to root my gf’s phone to let her access the services we host.
I ended up using a DynDNS and Caddy for managing my cert.