Free tools
Combines DNS, SSL certificate, HTTP headers and MX/domain-blacklist status into a single summary with prioritized findings, for a quick technical view without running each tool separately.
A records, SSL certificate, HTTP security headers and domain-blacklist presence (Spamhaus DBL), reusing the same engines as the individual tools.
A quick starting point before digging deeper with specific tools (SSL Checker, HSTS Checker, SPF/DKIM/DMARC) or the full domain audit.
Frequently asked questions
No. This free summary gives a quick view; the professional audit digs into more findings, ports, and delivers a verifiable PDF.
That the domain is listed on Spamhaus DBL, a public list associated with known spam, phishing or malware.