SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
half-life.world
SSL/TLS Certificate
SSL/TLS Certificate for half-life.world
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- half-life.world
- Valid from
- Jul 31, 2026
- Valid until
- Oct 29, 2026 (23 days remaining)
- Public key
- EC 256-bit
- Serial
- 54E6E96BDA5E128268B8E8F4731111C7
- SHA-256 fingerprint
- 96:9D:2A:97:D2:04:09:D9:46:6E:4A:85:A6:CA:7D:5A:63:95:84:9B:4A:C5:9A:D1:FC:86:01:66:A9:07:1B:76
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
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 27, 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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