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 s-and-j.co.uk

Valid
Issued by (CA)
Let's Encrypt
Subject
*.s-and-j.co.uk
Valid from
Nov 7, 2026
Valid until
Feb 5, 2027 (82 days remaining)
Public key
RSA 2048-bit
Serial
055E5DCA67054386290B7E9EC845BAEA209F
SHA-256 fingerprint
DF:1F:C7:52:F8:0B:30:8E:1C:66:7F:B7:C1:3E:42:87:29:0F:F9:2A:57:05:D8:0D:0C:55:8A:11:F8:FA:DA:EB
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.s-and-j.co.uk, s-and-j.co.uk

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 28, 2026.

Never get surprised by s-and-j.co.uk's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch s-and-j.co.uk continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.