SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gen-i.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for gen-i.co.uk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.gen-i.co.uk
- Valid from
- Aug 1, 2026
- Valid until
- Oct 30, 2026 (49 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0540D128A7C0196A830DEA1F7E39D65BF9FF
- SHA-256 fingerprint
- 58:F5:84:E3:64:AF:9E:4F:56:6E:33:98:22:A5:42:D2:D6:A3:86:E4:C8:D5:94:9C:92:60:4A:A7:6A:79:CB:3B
- Chain
- YR1 → Root YR → ISRG Root X1
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 Aug 25, 2026.
Never get surprised by gen-i.co.uk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch gen-i.co.uk continuously, notifying you the moment anything moves across all three signals:
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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