SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
log-book.co.uk
SSL/TLS Certificate
SSL/TLS Certificate for log-book.co.uk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- log-book.co.uk
- Valid from
- Aug 17, 2026
- Valid until
- Nov 15, 2026 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 053DAA3991A5C8BEC7D3A6037942FD66A533
- SHA-256 fingerprint
- 96:14:73:07:B4:31:B7:47:9D:94:09:43:95:5A:BB:D6:5C:4B:7F:2A:1E:DD:9D:DF:00:0B:1E:12:79:C8:11:DC
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 6, 2026.
Never get surprised by log-book.co.uk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch log-book.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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