Let's Encrypt
For Let's Encrypt, profile or product is classic; maximum validity (days) is 90; still issuing tls certificates is yes; notes is The FAQ states the default lifetime; the profiles documentation names the default profile 'classic'. Let's Encrypt recommends renewing 90 day certificates every 60 days. There is no way to adjust these lifetimes, recorded from its source on 2026-08-18.
- Certificate Authority
- Let's Encrypt verified
- Profile or Product
- classic our reading
- Maximum validity (days)
- 90 verified
- Still issuing TLS certificates
- yes our reading
- Notes
- The FAQ states the default lifetime; the profiles documentation names the default profile 'classic'. Let's Encrypt recommends renewing 90 day certificates every 60 days. There is no way to adjust these lifetimes. our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Our default certificates are valid for 90 days.
— letsencrypt.org, retrieved 2026-08-18
Source
- letsencrypt.orghttps://letsencrypt.org/docs/faq/