SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
rosbach-datentechnik.de
SSL/TLS Certificate
SSL/TLS Certificate for rosbach-datentechnik.de
Self-signed- Issued by (CA)
- ispgateway
- Subject
- webslave.ispgateway.de
- Valid from
- Dec 5, 2024
- Valid until
- Apr 22, 2052 (9298 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 1ABC28C7BAB1CCD085ED8690238D52B90B876E2E
- SHA-256 fingerprint
- 29:29:B0:20:92:5A:A0:C9:2A:40:82:2F:B4:4C:9A:8D:BC:28:B5:14:92:9B:AC:4B:59:7B:13:E1:76:56:B4:D1
- Chain
- webslave.ispgateway.de
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 28, 2026.
Never get surprised by rosbach-datentechnik.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch rosbach-datentechnik.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, CNAME, TXT 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.