SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
klu-airport.at
SSL/TLS Certificate
SSL/TLS Certificate for klu-airport.at
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- klu-airport.at
- Valid from
- Jul 10, 2026
- Valid until
- Oct 8, 2026 (63 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0540B356DB4495B587CEB86F76ACA3BF2C8F
- SHA-256 fingerprint
- 9A:DA:57:56:94:25:ED:0F:B9:FC:95:55:BD:A4:49:CB:AC:D9:12:AD:E0:DF:14:B3:F9:52:65:3F:74:99:9E:5F
- 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.
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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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