SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dokom21-dns.de
SSL/TLS Certificate
SSL/TLS Certificate for dokom21-dns.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.dokom21-dns.de
- Valid from
- Nov 1, 2026
- Valid until
- Jan 30, 2027 (79 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06C2D5B1DA141DB6AA361E88ED84A7054176
- SHA-256 fingerprint
- B5:27:45:AA:2D:B0:B2:4C:AE:DA:0F:0D:08:2D:BE:5B:FB:51:FA:24:69:9E:F3:26:64:9E:3C:18:24:58:54:BB
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Nov 9, 2026.
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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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