DNS & Email Deliverability Checker

Enter a domain (or email) to see its MX, SPF, DMARC, DKIM, DNSSEC and nameservers — looked up live. Great for "why is my email landing in spam / not sending?"

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Live DNS lookups via Cloudflare's resolver — nothing is stored. SPF/DMARC/DKIM are what mail servers use to decide if your mail is trustworthy.