I have a SaaS company, I am handling around 1800 domains with nginx and certbot, but the number of domain is growing and complicated to manage because certbot is failling sometimes and get stuck.
I really want to migrate to Caddy but don’t know how to do without downtime for my users.
There is a similar topic here : Migration to Caddy with Auto SSL from Nginx but it was for a smaller number of domains.
We did hit a rate limit of a maximum of 300 New Orders per account per 3 hours but after 3 hours the remaining certificates were generated.
It’s going to take too much time for our case, I would like to avoid it. What’s the beest way to manage hit? Maybe reusing previous certificates?
Best regards and thanks for your help,