SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for 1-nic.eu
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 1-nic.eu
- Valid from
- Jun 6, 2026
- Valid until
- Sep 4, 2026 (27 days remaining)
- Public key
- EC 256-bit
- Serial
- 05D781EA8574D5585CAA0F3ECF201FC3EEF8
- SHA-256 fingerprint
- 31:F5:7A:7C:2A:5D:47:BD:63:42:70:88:A3:BB:A8:41:EE:5C:9E:DC:99:68:21:04:90:4E:35:D1:5F:EB:0D:8F
- Chain
- YE2 → Root YE → ISRG Root X2 → 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 1-nic.eu's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-nic.eu 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.