Cybaa - DNS, Domain and Website Security Made Simple

Cybaa helps small and medium sized businesses monitor the security fundamentals of their domains, DNS, and websites — without needing a dedicated security team. It covers domain, DNS, certificate, email, and malicious-content signals in one place, with targeted checks for SPF, DMARC, MTA-STS, headers, WHOIS, and domain posture.

What It Does

• Monitors domain, DNS, certificate, email, and malicious-content signals in one place
• Runs targeted checks for SPF, DMARC, MTA-STS, security headers, WHOIS records, and overall domain posture
• Automatically backs up DNS zone files, capturing every change and storing immutable versions so you can restore quickly if something goes wrong
• Monitors configuration of verified Microsoft Entra domains and alerts on Azure DNS changes
• Alerts you when domains are added or removed, and when SPF, DMARC or MTA-STS configuration changes
• Offers an API layer so you can build domain infrastructure and security checks into your own systems

Why you’ll like It

• Built around the fundamentals, rather than trying to be an all-in-one security suite
• Can be used as a monitoring product, a set of free security checks, or purely as an API
• Actively developed, with recent updates covering TLS-RPT monitoring, DMARCbis validation, BIMI checks, subdomain discovery, and phishing and brand monitoring

Good For

• Small and medium sized businesses without a dedicated security team
• Anyone responsible for keeping DNS, email authentication, and certificates correctly configured
• Developers wanting to bring domain and security monitoring into their own tools via API
• Businesses wanting early warning of DNS tampering, expiring certificates, or domain hijacking risks

Try Cybaa free for 30 days and get on top of your domain and website security fundamentals.