DNS Health Checker
Get a complete health report on your domain's DNS — nameservers, A/AAAA, mail (MX), SOA, SPF, DMARC, and CAA records — with a clear score and a list of anything that needs fixing.
DNS is the invisible plumbing that points your domain to your website and email. When it's misconfigured, sites go down, email bounces, and SSL breaks — often intermittently and hard to diagnose.
This checker runs a full, intoDNS-style audit: your nameservers (and whether you have enough, on diverse networks), A and IPv6 records, your SOA, mail (MX) records, SPF and DMARC for email security, and CAA records that control who can issue SSL certificates for you.
You'll get a health score and a prioritized list of issues. Everything is read live from public DNS — nothing is changed.
FAQs
What is DNS and why does it matter?
DNS maps your domain to your website and email servers. If it's wrong, your site can go down, email can bounce, and SSL can break — often intermittently and hard to trace.
How is this different from the email checker?
The email checker focuses on deliverability (SPF/DKIM/DMARC/MX). This DNS Health Checker is broader — it also audits your nameservers, A/AAAA, SOA, and CAA records, like intoDNS.
What's a CAA record?
A CAA record controls which certificate authorities are allowed to issue SSL certificates for your domain — a simple defense against unauthorized certificates.
Can you fix my DNS?
Yes — we manage DNS, email, and hosting, and fix exactly the issues this tool surfaces. Just reach out.