SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
s-m-d.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for s-m-d.co.uk
Self-signed- Issued by (CA)
- smddirect.co.uk
- Subject
- smddirect.co.uk
- Valid from
- Feb 11, 2021
- Valid until
- Feb 11, 2022 (expired 1632 days ago)
- Public key
- RSA 2048-bit
- Serial
- 5524FA21
- SHA-256 fingerprint
- 8C:90:DF:D7:8B:C0:98:AA:EB:D1:2C:16:05:E6:BB:8C:5B:62:C9:CD:E3:3B:C8:41:96:19:22:9A:70:41:E1:A0
- Chain
- smddirect.co.uk
Certificate Authority Authorization (CAA)
CAA restricts issuance to comodoca.com, letsencrypt.org; we couldn't map the serving CA (smddirect.co.uk) to one of these identifiers.
This certificate has been served since Jul 27, 2026.
Never get surprised by s-m-d.co.uk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch s-m-d.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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