Threats live below the registered-domain layer too. A clean parent domain can host a hostile subdomain. A legitimate brand domain can have its DNS records changed by an attacker who compromised registrar credentials. A certificate transparency log entry can expose a subdomain configured for phishing before any traffic reaches it.
We watch certificate transparency logs, passive DNS, and active DNS record changes for your brand portfolio. Anything that looks like impersonation setup or unauthorized change routes into the same enforcement workflow as registered-domain hits.
What we monitor
- Certificate transparency logs for new certificates issued on brand-relevant subdomains
- Passive DNS for unexpected subdomains resolving for your domains
- Active DNS records on owned domains, alerted on unauthorized changes
- Subdomain takeover candidates where dangling CNAMEs point at unclaimed infrastructure
How it integrates
Subdomain monitoring runs alongside zone-file monitoring as part of the same threat intelligence pipeline. One operator, one brief, one set of evidence packets routed to the right enforcement workflow.
Buyer pain we address
- Subdomain abuse hides under benign-looking parent domains and bypasses zone-file monitoring
- Certificate transparency logs go unmonitored even though they expose new lookalike subdomains daily
- DNS record changes on legitimate domains get detected only after damage is done