Directory / Uptime and certificates
FreeFree tier checked
crt.sh
Public search of certificate transparency logs.
Verdict
crt.sh lets you search certificates that have been logged publicly. The page we loaded is a search form with no account and no price. It tells you what certificates exist. It does not renew them.
- Who it is for
- Anyone checking which certificates a domain has published.
- Free tier
- The certificate search is public. No price and no account wall were on the page. Checked 14 Oct 2026.
- Pricing note
- No paid plan on the page.
- Categories
- Uptime and certificatesFree checkers
- Last verified
- 14 Oct 2026
- Ownership
- Independent of this directory.
What holds up
- No account.
- It is a primary source for issued certificates.
What to watch
- It does not watch expiry for you.
- It does not issue certificates.
Alternatives
Other tools in this directory that do related work. Same ordering rules. A different job is called out in the verdict, not hidden.