SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
t-asp.net
SSL/TLS Certificate
SSL/TLS Certificate for t-asp.net
Hostname mismatch- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.backshelf.jp
- Valid from
- Jul 18, 2025
- Valid until
- Aug 19, 2026 (19 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2BB5FC6E1357CFF41B6EB55A
- SHA-256 fingerprint
- 2C:04:E9:E2:4E:37:64:FD:0E:89:55:4D:F3:19:5E:B8:34:D4:09:6B:A3:6F:46:B2:8B:02:36:EF:E8:42:19:61
- Chain
- GlobalSign GCC R3 DV TLS CA 2020 → GlobalSign
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 Jul 26, 2026.
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TLS certificate
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