SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
rayapp.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for rayapp.co.uk
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- rayapp.co.uk
- Valid from
- Aug 16, 2025
- Valid until
- Nov 14, 2025 (expired 352 days ago)
- Public key
- RSA 2048-bit
- Serial
- 05D7822BD750B12240DD7AAE0E56B720F682
- SHA-256 fingerprint
- 09:A8:4F:71:33:06:18:F9:56:15:7F:BA:29:43:C5:3C:1E:BA:CA:24:38:BD:3D:1C:53:7C:2A:CA:91:76:71:2E
- Chain
- R10 → ISRG Root X1
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, 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.
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