certificate term has remaining validity

(< | > | !=) timespan

Purpose

Warns when the specified website certificate's remaining term of validity (how long the certificate is valid after now; the certificate term ending date & time minus the current date & time) does not conform to the specified timespan. For total certificate term validity, see certificate term has validity requirement.

Notes

This requirement may be repeated in the same section.

A timespan is an expression of a length of time without a specific date. "4 days 2 hours 3 minutes" indicates a timespan of 4 days, 2 hours, and 3 minutes. Only the units with non-zero values need to be listed. A timespan unit is any combination of seconds, minutes, hours, days, weeks, and years. The trailing 's' on each timespan unit is optional. Weeks are defined as the given number of weeks × 7 days. Years are defined as the given number of years × 365 days.

Example configuration

# Warns when the website certificate remaining validity is under 1 year and 1 day.
[certificate:https://illinois.edu]
certificate term has remaining validity > 1 year 1 day

Example output

Line 5: 1 certificate remaining validity is less than 366 days:

Serial Number	Starting	Ending	Hostnames	Validity Length	Remaining Validity
05-95-4D-78-77-76-42-58-93-DB-BB-28-C0-A4-FA-D7-62-36	Fri 2025-07-04 6:05:06 AM	Thu 2025-10-02 6:05:05 AM	2 hostnames: illinois.edu, www.illinois.edu	89 days, 23 hours, 59 minutes, and 59 seconds	50 days, 10 hours, 10 minutes, 2 seconds, and 198 milliseconds