SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
not-allowed.dk
SSL/TLS Certificate
SSL/TLS Certificate for not-allowed.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- not-allowed.dk
- Valid from
- Jul 24, 2026
- Valid until
- Oct 22, 2026 (31 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0515E63AB48FF63421F1814BD854D9E848F4
- SHA-256 fingerprint
- 16:11:10:4D:9D:16:5D:C6:6C:B0:2B:FD:48:E5:9F:FB:CB:E4:5B:E2:7B:53:93:63:67:74:10:C2:5F:46:F0:E4
- 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.
This certificate has been served since Sep 14, 2026.
Never get surprised by not-allowed.dk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch not-allowed.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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