SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-54-248-149-191.ap-northeast-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-54-248-149-191.ap-northeast-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- DigiCert Inc
- Subject
- *.bookwalker.jp
- Valid from
- Jul 15, 2025
- Valid until
- Aug 15, 2026 (12 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 01E06966D49286D52398F668F42D13C7
- SHA-256 fingerprint
- 53:80:11:18:9E:97:6C:BD:A3:02:11:6F:07:EC:38:C4:F8:63:D7:EB:F0:71:4A:53:9C:D6:3D:0D:C7:23:13:6C
- Chain
- RapidSSL TLS RSA CA G1 → DigiCert Global Root G2
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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