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Domain Health Checker
Instantly check DNS, SSL, SPF, DMARC, DKIM, and more for any domain.
Comma-separated selectors to check (e.g. google, mailjet, pm). Common selectors are already checked automatically.
Check whether specific A, CNAME, or other records exist for this domain.
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Enter a domain to get started
We'll check DNS, SSL, SPF, DMARC, DKIM, security headers, and more — instantly.
Dedicated tools
Specialized lookups for MSP workflows
Use a dedicated landing page when you need a quick check for DNS, DMARC, SPF, SSL, or WHOIS.