DNS Reveal
Free domain & email diagnostic tools
Free Diagnostic Tooling — dnsreveal.com

Tools that reveal
what's really going on

A growing set of free tools for business owners and IT teams to diagnose domain health, email deliverability, and network configuration problems — no account required.

Available Now
DNS Health Check
A full audit of your domain's DNS configuration — nameservers, SOA, MX records, SPF, DMARC, DKIM and more. Spot misconfigurations before they cause email or website problems.
Run a check → Free
Email Header Analyser
Paste raw email headers and get a plain-English breakdown of the delivery route, hop delays, spam scores, and SPF / DKIM / DMARC authentication results.
Analyse headers → Free
Blacklist Checker
Check whether your domain or IP address appears on any major email blacklists that could be causing your messages to be rejected or filtered.
Coming soon Soon
SSL Certificate Check
Inspect the SSL certificate on any domain — expiry date, issuer, chain validity, and whether your certificate matches the domain it is serving.
Coming soon Soon
WHOIS Lookup
Retrieve registration details for any domain — registrar, creation and expiry dates, nameservers, and registrant contact information where available.
Coming soon Soon
SPF Record Builder
Build a correctly formatted SPF record for your domain by selecting your mail providers from a list. Get a record you can copy directly into your DNS settings.
Coming soon Soon