SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
copa-shinjuku.com
SSL/TLS Certificate
SSL/TLS Certificate for copa-shinjuku.com
Expiring soon- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.copa-shinjuku.com
- Valid from
- Aug 10, 2026
- Valid until
- Sep 13, 2026 (4 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06A6C849C83DE4D5B5D879CF
- SHA-256 fingerprint
- 92:C0:05:B6:14:3C:84:F5:46:A6:4B:ED:E7:DD:39:CB:64:3D:38:D5:94:7A:C2:31:61:F8:90:15:9E:47:25:07
- Chain
- GlobalSign GCC R46 AlphaSSL CA 2025 → 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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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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