SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
simex-aviation.dk
SSL/TLS Certificate
SSL/TLS Certificate for simex-aviation.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- simex-aviation.dk
- Valid from
- Jun 10, 2026
- Valid until
- Sep 8, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05CF75A2CE6B211DCFCE659E4224373DEBEB
- SHA-256 fingerprint
- 2C:4E:12:45:0B:05:D7:06:B3:1F:E8:F1:09:75:93:0B:2A:14:77:57:0D:5F:13:D6:C1:DF:94:76:1B:E7:AD:E7
- 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 simex-aviation.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch simex-aviation.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.
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