SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ardex.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for ardex.co.uk
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- ardex.co.uk
- Valid from
- Dec 17, 2025
- Valid until
- Dec 18, 2026 (104 days remaining)
- Public key
- RSA 2048-bit
- Serial
- DF3C1D5615C62FB796871C4FCB45C2CD
- SHA-256 fingerprint
- 81:5D:9C:49:29:E0:BF:80:93:D1:C3:95:10:68:10:48:F5:AF:95:8F:F7:9E:C2:21:01:BE:3C:97:F1:7D:F6:B7
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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