SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for 1-cl.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.edvschwabach.de
- Valid from
- Oct 7, 2026
- Valid until
- Jan 5, 2027 (63 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06C2CB5105EA18A9202B41EFD8A81F18AB9F
- SHA-256 fingerprint
- FA:EF:EA:E0:98:8E:32:E8:6D:2D:86:27:45:EC:C4:E7:C7:2B:00:58:80:15:F3:5B:71:73:0D:A8:BC:CF:46:78
- Chain
- YR1 → Root YR → ISRG Root X1
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 Sep 3, 2026.
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This is today's certificate. Turn on monitoring and we'll watch 1-cl.de continuously, notifying you the moment anything moves across all three signals:
Uptime
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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.
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