A renewal slipped once, and it must not happen again.
An IT team of two to five people, a few dozen certificates at a public CA and Let’s Encrypt, a spreadsheet that was right last quarter.
- Install the sensor on one machine in each network segment; it maps what serves TLS, including the systems nobody documented.
- Verify your domains and get every publicly issued certificate for them from Certificate Transparency.
- Expiry alerts 30, 14, 7 and 1 day ahead, in the mailbox and in Teams or Slack.
- Connect your CA accounts, so the alert becomes an approval instead of a task.