SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-fire.jp
SSL/TLS Certificate
SSL/TLS Certificate for a-fire.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- a-fire.jp
- Valid from
- Aug 19, 2026
- Valid until
- Nov 16, 2026 (51 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 737F6C5B837F0B8A66DC8137050E7F43
- SHA-256 fingerprint
- 08:F4:90:0E:E6:41:26:B9:C7:FD:04:D2:38:5C:BB:66:AF:A5:34:D0:74:C2:25:94:3C:8C:56:BC:47:CD:D7:AF
- Chain
- JPRS DV RSA CA 2024 G1 → SECOM TLS RSA Root CA 2024
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch a-fire.jp continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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