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 acnex.uk
Untrusted chain- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- acnex.uk
- Valid from
- Jan 5, 2026
- Valid until
- Jan 5, 2027 (122 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0DC29D7593C1076663A539EABFE2FA20
- SHA-256 fingerprint
- F2:8A:C8:18:E6:A4:E4:35:46:A2:68:51:67:F2:2D:8E:BB:A3:FE:A7:89:C1:8F:27:40:2E:50:EF:02:B4:86:B8
- Chain
- —
Certificate Authority Authorization (CAA)
CAA restricts issuance to certum.pl, letsencrypt.org; we couldn't map the serving CA (Asseco Data Systems S.A.) to one of these identifiers.
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Uptime
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DNS changes
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TLS certificate
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