SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
petct-graz.at
SSL/TLS Certificate
SSL/TLS Certificate for petct-graz.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- petct-graz.at
- Valid from
- Sep 21, 2026
- Valid until
- Dec 20, 2026 (65 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 051E45260D12B538A63AB68CC1A80D2A5387
- SHA-256 fingerprint
- 42:74:92:CB:4C:80:E9:4A:0B:81:51:8B:70:0A:CD:87:CE:59:59:F3:F4:9D:27:17:B2:C7:1D:A3:58:9F:D0:FE
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by petct-graz.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch petct-graz.at continuously, notifying you the moment anything moves across all three signals:
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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