SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
f-sousei.com
SSL/TLS Certificate
SSL/TLS Certificate for f-sousei.com
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.f-sousei.com
- Valid from
- Jun 21, 2026
- Valid until
- Jan 6, 2027 (119 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0122A71BDB07D3E838173C98DD86C0A1
- SHA-256 fingerprint
- BA:13:CA:65:ED:8F:10:DB:01:37:92:9B:0F:60:48:7E:60:0B:0F:DA:0F:9E:B6:96:32:9E:BF:94:F3:50:61:D3
- Chain
- GlobalSign Atlas R3 AlphaSSL CA 2026 Q2 → 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 Aug 26, 2026.
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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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