SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bio-k.eus
SSL/TLS Certificate
SSL/TLS Certificate for bio-k.eus
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- bio-k.eus
- Valid from
- Jul 16, 2026
- Valid until
- Oct 14, 2026 (34 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05F8F49B2E60C113B1F56669AADBDE5C30D4
- SHA-256 fingerprint
- 12:3D:A5:DC:52:57:F8:47:C9:66:66:05:A7:8E:7F:10:D8:F4:32:DB:D6:77:F7:AC:5C:E6:08:A2:68:82:C0:1D
- 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.
Never get surprised by bio-k.eus's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch bio-k.eus 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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