SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sds-education.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for sds-education.co.uk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mail.sds-schoolrecords.co.uk
- Valid from
- Oct 6, 2026
- Valid until
- Jan 4, 2027 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 067E646046BC8C2737381C182057D1824715
- SHA-256 fingerprint
- 34:D5:52:48:EE:D2:FB:A1:B3:D5:E9:7E:2A:12:5E:20:0B:38:B5:B3:D7:0E:A3:87:8D:64:09:30:5B:C8:5B:27
- Chain
- YR2 → Root YR → ISRG Root X1
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 Oct 17, 2026.
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Uptime
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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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