SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kyouai-hp.jp
SSL/TLS Certificate
SSL/TLS Certificate for kyouai-hp.jp
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.office.synapse.ne.jp
- Valid from
- Feb 24, 2026
- Valid until
- Mar 28, 2027 (242 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 30FEF39BC83EF76B5822E892
- SHA-256 fingerprint
- EC:03:53:7C:50:04:E5:46:B8:04:BC:33:23:E5:18:F9:A9:95:7C:21:66:D4:91:B5:B0:7D:A5:60:52:AD:3C:06
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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DNS changes
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TLS certificate
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