SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
refugia.at
SSL/TLS Certificate
SSL/TLS Certificate for refugia.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- refugia.at
- Valid from
- Aug 26, 2026
- Valid until
- Nov 24, 2026 (38 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06D392D3A7A41A64D6283579C2849C4FA429
- SHA-256 fingerprint
- 01:B3:D8:6E:F2:6D:C6:6E:A7:15:EE:D1:C6:D0:14:89:52:07:43:B4:A8:FC:6D:18:53:72:E5:95:79:AF:5F:F8
- 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.
This certificate has been served since Oct 14, 2026.
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Uptime
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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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