Let's Encrypt
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.
- Certificate Authority
- Let's Encrypt verified
- 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.
What the source says
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
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Profile or Product
letsencrypt.org says profile or product is tlsserver, as of 2026-08-18.
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.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says profile or product is shortlived, as of 2026-08-18.
The shortlived profile is identical to the tlsserver profile, with one key distinction: the resulting certificate is only valid for 6ish days.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says profile or product is classic, as of 2026-08-18.
Our default certificates are valid for 90 days.
https://letsencrypt.org/docs/faq/
Maximum validity (days)
letsencrypt.org says maximum validity (days) is 45, as of 2026-08-18.
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.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says maximum validity (days) is 6, as of 2026-08-18.
The shortlived profile is identical to the tlsserver profile, with one key distinction: the resulting certificate is only valid for 6ish days.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says maximum validity (days) is 90, as of 2026-08-18.
Our default certificates are valid for 90 days.
https://letsencrypt.org/docs/faq/
Notes
letsencrypt.org says notes is Valid for only 45 days, in preparation for upcoming restrictions that will limit all certificates to at most 47 days., as of 2026-08-18.
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.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says notes is Validity Period is stated as 160 hours in the profile table; qualifies as a Short-Lived Subscriber Certificate under the Baseline Requirements and needs no revocation information., as of 2026-08-18.
The shortlived profile is identical to the tlsserver profile, with one key distinction: the resulting certificate is only valid for 6ish days.
https://letsencrypt.org/docs/profiles/
letsencrypt.org says 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., as of 2026-08-18.
Our default certificates are valid for 90 days.
Sources
- letsencrypt.orghttps://letsencrypt.org/docs/profiles/
- letsencrypt.orghttps://letsencrypt.org/docs/faq/