Let's Encrypt · tlsserver
What is the maximum validity (days) for Let's Encrypt · tlsserver?
For Let's Encrypt, profile or product is tlsserver; maximum validity (days) is 45; still issuing tls certificates is yes; notes is Valid for only 45 days, in preparation for upcoming restrictions that will limit all certificates to at most 47 days, recorded from its source on 2026-08-18; source re-checked 2026-09-29.
And finally the resulting certificate is valid for only 45 days, in preparation for upcoming restrictions that will limit all certificates to at most 47 days.
— letsencrypt.org, retrieved 2026-08-18
- Certificate Authority
- Let's Encrypt
- Profile or Product
- tlsserver our reading
- Maximum validity (days)
- 45 verified
- Still issuing TLS certificates
- yes our reading
- Notes
- Valid for only 45 days, in preparation for upcoming restrictions that will limit all certificates to at most 47 days. 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.
Where each value comes from
The value above is stated away from the sentence quoted with the answer, so the passage that states it is shown here too.
Still issuing TLS certificates
This is the maximum number of “Subject Alternative Names” for which we will issue a certificate.
— all from letsencrypt.org, retrieved 2026-08-18
Source
- letsencrypt.orghttps://letsencrypt.org/docs/profiles/