Decreasing Certificate Lifetimes to 45 Days
3 comments
·December 2, 2025ZeroConcerns
I'm all for it -- it's hard to understate the extent to which LetsEncrypt has improved the WebPKI situation. Although the effective single-vendor situation isn't great, the "this is just something you only do via an automated API" approach is absolutely the right one. And certificate lifetimes measured in days work just fine with that.
The only things that continue to amaze me are the number of (mostly "enterprise") software products that simply won't get with the times (or get it wrong, like renewing the cert, but continuing to use the old one until something is manually restarted), and the countless IT departments that still don't support any kind of API for their internal domains...
jakeogh
"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."
I dont follow. Why? Why not an hour? A ssl failure is a very effective way to shut down a site.
> The key advantage of [DNS-PERSIST-01] is that the DNS TXT entry used to demonstrate control does not have to change every renewal.
> We expect DNS-PERSIST-01 to be available in 2026
Very exciting!
https://datatracker.ietf.org/doc/html/draft-sheurich-acme-dn...