SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
armap.tokyo
SSL/TLS Certificate
SSL/TLS Certificate for armap.tokyo
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.armap.tokyo
- Valid from
- Aug 10, 2026
- Valid until
- Feb 25, 2027 (169 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 01496C406EFEA6B1090D38F17B6012EB
- SHA-256 fingerprint
- 32:65:99:37:42:88:BF:9E:09:48:77:EE:58:15:DA:16:29:0F:67:F5:36:72:7F:8B:BC:4B:7A:9E:B2:D1:59:57
- Chain
- GlobalSign Atlas R46 AlphaSSL CA 2026 Q3 → GlobalSign Root R46
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 armap.tokyo 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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