SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

zen.co.uk

SSL/TLS Certificate

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SSL/TLS Certificate for zen.co.uk

Valid
Issued by (CA)
Amazon
Subject
*.zen.co.uk
Valid from
Mar 31, 2026
Valid until
Oct 14, 2026 (85 days remaining)
Public key
RSA 2048-bit
Serial
064BB81B4E9F79FF0F4DAB543CA98D0E
SHA-256 fingerprint
80:4F:90:FC:4D:25:4F:6F:1C:40:15:1F:82:C1:00:00:A7:A0:51:B7:DA:E2:BF:23:B1:1D:0C:B5:C2:A2:E7:5A
Chain
Amazon RSA 2048 M04 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Subject Alternative Names (42)
*.api.bss.zen.co.uk, *.api.element.oss.zen.co.uk, *.api.ess.zen.co.uk, *.api.indirect.zen.co.uk, *.api.network.oss.zen.co.uk, *.api.oss.zen.co.uk, *.api.service.oss.zen.co.uk, *.api.supplier.zen.co.uk, *.api.zen.co.uk, *.assurance.wholesale.zen.co.uk, *.broadband.zen.co.uk, *.business.zen.co.uk, *.fmn.zen.co.uk, *.indirect.zen.co.uk, *.internal.zen.co.uk, *.log.zen.net.uk, *.monitoring.zen.net.uk, *.office.zen.co.uk, *.pse.zen.co.uk, *.repositories.pse.zen.co.uk, *.sandbrookhouse.co.uk, *.sdwan.zen.co.uk, *.story.zen.co.uk, *.support.zen.co.uk, *.sysdev.zen.co.uk, *.systems-zen.co.uk, *.wholesale.zen.co.uk, *.zen.co.uk, *.zen.net.uk, *.zen.uk, *.zenbusiness.co.uk, *.zeninternet.co.uk, *.zenstaff.co.uk, *.zensupport.co.uk, *.zenwebsolutions.com, sandbrookhouse.co.uk, zen.co.uk, zen.net.uk, zen.uk, zeninternet.co.uk, zensupport.co.uk, zenwebsolutions.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.