SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
friis-a.dk
SSL/TLS Certificate
SSL/TLS Certificate for friis-a.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- friis-a.dk
- Valid from
- Jun 2, 2026
- Valid until
- Aug 31, 2026 (34 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0689FE0BF1CD2501A995537F5C678FFC9FFD
- SHA-256 fingerprint
- 00:1F:B4:67:E4:5E:CE:00:1F:52:E0:31:1A:BC:38:76:63:16:C0:8D:B5:7A:0D:D0:97:6B:C8:7F:40:35:5B:3E
- 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.
Never get surprised by friis-a.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch friis-a.dk 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.