SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cust-data.com
SSL/TLS Certificate
SSL/TLS Certificate for cust-data.com
Self-signed- Issued by (CA)
- cust-data.com
- Subject
- cust-data.com
- Valid from
- Jun 22, 2021
- Valid until
- Jun 22, 2022 (expired 1535 days ago)
- Public key
- RSA 2048-bit
- Serial
- BC19C828
- SHA-256 fingerprint
- 6F:E7:5B:49:2C:EB:80:F7:0F:3B:73:75:2C:BC:A4:B5:FC:42:F0:E3:4C:EE:8B:7A:00:AA:BC:7D:6D:D7:3F:27
- Chain
- cust-data.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by cust-data.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cust-data.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.