SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
htl-hl.ac.at
SSL/TLS Certificate
SSL/TLS Certificate for htl-hl.ac.at
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- htl-hl.ac.at
- Valid from
- Jun 18, 2026
- Valid until
- Sep 16, 2026 (47 days remaining)
- Public key
- EC 256-bit
- Serial
- F9E0E55A922FB6D819A0446432759B1D
- SHA-256 fingerprint
- 22:C3:D4:71:6E:7E:74:4D:51:9B:6B:AF:2F:01:D7:9F:0D:6E:8B:09:C1:44:6D:6B:BC:84:0D:3A:6C:D3:3A:56
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
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
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TLS certificate
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