SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
y-tunnus.fi
SSL/TLS Certificate
SSL/TLS Certificate for y-tunnus.fi
Self-signed- Issued by (CA)
- lb1.a1.da.lan
- Subject
- lb1.a1.da.lan
- Valid from
- Dec 17, 2024
- Valid until
- Dec 15, 2034 (3023 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 7F77E98762A59143CCE66236A8E30C08F8F27F5D
- SHA-256 fingerprint
- 47:5E:40:9E:85:71:C3:9E:9C:0F:68:62:6C:32:28:DE:91:01:BB:52:E0:47:24:89:78:B9:77:F0:FB:49:DC:7D
- Chain
- lb1.a1.da.lan
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 Aug 29, 2026.
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Uptime
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DNS changes
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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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