SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ofen-aigner.at
SSL/TLS Certificate
SSL/TLS Certificate for ofen-aigner.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ofen-aigner.at
- Valid from
- Jun 23, 2026
- Valid until
- Sep 21, 2026 (60 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05DEE73A1DDEFF4E86F726BAE3F4AF5F3DD3
- SHA-256 fingerprint
- 0F:03:F1:90:51:03:64:35:23:0C:BA:CE:34:06:77:53:45:48:D3:72:9C:25:A3:34:1B:31:8A:B6:D7:3D:C8:09
- 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.
Never get surprised by ofen-aigner.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ofen-aigner.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.