Documentation

German version: ../de/README.md

This directory contains the English operational guides for certbro.

Start Here

Getting Started: install certbro, configure a verified API key, and issue the first certificate
Linux Automation: install the hourly systemd renewal timer and operate it on Linux servers

Workflow Overview: compare DV, staged OV/business, and pre-linked organization flows end to end
Issuing Certificates: single-domain, SAN, product selection, key algorithms, validity schedule, and quiet mode
Validity Management: manual lifetime changes and automatic schedule-aware adjustment of stored values
Dual RSA and ECDSA Certificates: operate parallel certificate variants for modern and legacy TLS clients
Renewals and Replacement: normal renewals, forced renewals, validity overrides, future CA/B Forum limits, and fast replacement
Import Existing Certificates: bring certificates ordered in the regfish UI under certbro management

Ubuntu + nginx Example: full server walkthrough including DNS, nginx, ufw, certbro, and automatic renewals
Ubuntu + Apache Example: full server walkthrough including DNS, apache2, ufw, certbro, and automatic renewals