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 g-ys.com
Self-signed- Issued by (CA)
- g-ys.com.df-698270.dummy
- Subject
- g-ys.com.df-698270.dummy
- Valid from
- Jun 28, 2025
- Valid until
- Jun 28, 2026 (expired 94 days ago)
- Public key
- RSA 2048-bit
- Serial
- 50355067
- SHA-256 fingerprint
- 25:9A:2D:EE:89:03:AD:DC:7F:8F:4A:DC:4B:0C:F3:43:06:A0:9C:92:66:72:71:A8:25:E6:02:77:54:69:BA:39
- Chain
- g-ys.com.df-698270.dummy
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by g-ys.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch g-ys.com 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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