SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
penka-immobilien.de
SSL/TLS Certificate
SSL/TLS Certificate for penka-immobilien.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- penka-immobilien.de
- Valid from
- Jul 21, 2026
- Valid until
- Oct 19, 2026 (88 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 05F0A6D37D16775EBBAAEFA9C6B60DBA1049
- SHA-256 fingerprint
- 78:BF:D2:AD:9C:77:07:FE:44:86:14:E3:4B:2E:F6:62:D1:95:A1:32:83:26:CA:B1:84:EF:3E:88:D6:A2:61:75
- 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 penka-immobilien.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch penka-immobilien.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.