SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for jac-r.ru
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.jac-r.ru
- Valid from
- Jun 1, 2026
- Valid until
- Dec 17, 2026 (100 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 7DFAE04CA5E7A01F82FF8C87
- SHA-256 fingerprint
- D6:5F:B7:F0:60:A5:63:83:89:F4:30:55:C5:97:08:20:35:AB:9F:F6:D0:8D:C6:78:06:A9:B5:BB:42:C2:5F:42
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → GlobalSign
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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