Free · No signup for your grade
What's your business's security grade?
Enter your domain for a free external scan of the signals a cyber-insurance underwriter checks first — email authentication (SPF, DKIM, DMARC) and your website's security headers. You'll get an A–F grade in seconds. No login, no probing your systems.
Results are informational and may be incomplete or inaccurate. See ourTerms of Use.
External, read-only check of public DNS and HTTPS response headers. We never log into or probe your systems.
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Guides worth reading
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