SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kastner-oehler.at
SSL/TLS Certificate
SSL/TLS Certificate for kastner-oehler.at
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- www.kastner-oehler.at
- Valid from
- May 20, 2026
- Valid until
- Dec 4, 2026 (111 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0130B63C1D7E7520DF1E51AD5F06C5D3
- SHA-256 fingerprint
- 90:A1:0E:CC:72:2F:20:49:93:BA:52:7A:58:E3:17:47:CE:4D:F2:AB:EC:A2:58:FA:83:70:36:62:D3:EF:2D:F3
- Chain
- Thawte TLS RSA CA G1 → DigiCert Global Root G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by kastner-oehler.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kastner-oehler.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.