CertKit

What it does

SSL certificates expire. When they do, your site goes down and your phone rings at 2am. CertKit fixes that. It issues certificates from Let's Encrypt, deploys them to your servers with the CertKit Agent, and verifies the right certificate is actually running on every system. One setup, no per-server configuration, no cron jobs. Works with Windows, Linux, Apache, Nginx, IIS, and more. Free 90-day trial, no credit card.

• CF
  CertKit for automating SSL certs to Windows, JKS, and appliancesApr 2026 · certkit.io · ▲7

  We’ve been managing web infrastructure for a long time. For most of that time, certificate management meant buying a cert, copying it to wherever it needed to go, and setting a calendar reminder. That works when certificates last a year. It stops working when lifetimes drop to 47 days. Certbot is the obvious answer but it doesn’t cover everything. It requires ACME on each server, which means each server needs to be internet-reachable or have DNS provider access. That rules out Windows servers, JKS keystores, and appliances that can’t run Certbot or speak ACME at all. CertKit handles ACME…

• CS
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