Free tools
Domain check
One check for your domain: is your website really behind Cloudflare, do any names give away your server’s address, are DNSSEC and CAA set up right, and do SPF, DKIM and DMARC stop people faking your email?
Private by design. Nothing you type here is recorded or sent to me, and I’ll never contact you about a domain you check. The lookups run in your browser, which asks Cloudflare’s public DNS resolver (1.1.1.1) directly, so they never go through my servers. I only count how often each tool is used. Free, with no sign-up.
Domain check
Check your domain
Found something you’d rather not fix yourself? Tell me what you found, and I’ll sort it out.
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