SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ext-com.de
SSL/TLS Certificate
SSL/TLS Certificate for ext-com.de
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- *.ext-com.de
- Valid from
- Dec 6, 2025
- Valid until
- Dec 6, 2026 (127 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 09F7447A4A3FC89DEC4AA0AF98907296
- SHA-256 fingerprint
- C9:F2:D9:6C:7A:DC:35:9F:6D:D5:B0:44:0A:4A:32:F5:4B:4E:AC:9E:FD:92:83:F0:BA:4A:46:EF:A7:45:29:BF
- Chain
- RapidSSL 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 ext-com.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ext-com.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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