SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
deadca.de
SSL/TLS Certificate
SSL/TLS Certificate for deadca.de
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- deadca.de
- Valid from
- Aug 16, 2026
- Valid until
- Nov 14, 2026 (72 days remaining)
- Public key
- EC 256-bit
- Serial
- 50D1B31D1D1B42D572590D1D000A476A
- SHA-256 fingerprint
- 33:6A:08:3C:46:A3:15:74:97:B9:38:53:C8:8B:92:9A:62:57:60:CB:08:0C:BE:F7:D8:C0:57:11:DD:34:00:62
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Certificate Authority Authorization (CAA)
The serving CA (ZeroSSL GmbH) is authorized by this domain's CAA records (sectigo.com).
This certificate has been served since Aug 10, 2026.
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Uptime
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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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