SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
opus-host.de
SSL/TLS Certificate
SSL/TLS Certificate for opus-host.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- opus-host.de
- Valid from
- Sep 17, 2026
- Valid until
- Dec 16, 2026 (87 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A1701DD1008531DC825A6A28B2978F6DEB
- SHA-256 fingerprint
- FB:82:0E:42:1B:A9:83:55:15:C2:5A:FC:A6:A4:D3:CD:08:16:98:F9:5F:FF:CC:25:F5:04:DE:73:C4:0F:DB:1B
- 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 opus-host.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch opus-host.de 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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