SSL/TLS & Certificates Cheat Sheet (Printable PDF)

For the renewal you only think about once a year.

Use it when: a cert expired and the site is down, you need to generate a key or a CSR, verification fails and you don't know which step.

On the sheet: keys, CSRs, certificates and verification with OpenSSL.

Not on it: buying advice for CAs.

Format: 3-page US Letter PDF, dark terminal theme, print-ready. Instant download, no account needed.