SSL/TLS Certificate Lookup
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fjernundervisning.nu
SSL/TLS Certificate
SSL/TLS Certificate for fjernundervisning.nu
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- fjernundervisning.nu
- Valid from
- Oct 17, 2026
- Valid until
- Jan 15, 2027 (67 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 0664B9522A7884827579BA4E6105635679F9
- SHA-256 fingerprint
- 0F:85:87:36:34:F7:3A:37:57:19:8F:3E:8D:7E:77:3D:54:E9:B1:BE:3E:9E:3D:59:0A:4A:95:7B:57:AE:52:54
- 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 fjernundervisning.nu's certificate expiring
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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