SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aortic-journal.org
SSL/TLS Certificate
SSL/TLS Certificate for aortic-journal.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- aortic-journal.org
- Valid from
- Aug 20, 2026
- Valid until
- Nov 18, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06CC379CEEC232F129B8B79AEBD838800BDB
- SHA-256 fingerprint
- 01:78:4A:7D:41:0A:3B:28:4C:7E:94:F2:1D:1F:9A:B1:05:02:9E:CB:81:57:E8:09:9F:BA:9E:40:72:A8:F2:5D
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Aug 26, 2026.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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