Why DNS checks are useful
DNS records connect your domain to websites, email systems, verification services, and security policies. Checking records helps you confirm what the public internet sees, not only what your hosting dashboard says.
Records worth reviewing
- A and CNAME records for website routing.
- MX records for email delivery.
- TXT records for ownership checks and policy records.
- SPF, DKIM, and DMARC for email authentication.
- CAA records when certificate issuance control matters.
Common mistakes
DNS changes can take time to propagate. Another common issue is leaving old verification or email records after changing providers. Review records regularly and remove entries you no longer need.
FAQ
Why do different checkers show different values?
Propagation, resolver cache, and regional differences can affect what is visible.
Can DNS prove a website is secure?
No. DNS is one part of the setup. You still need secure hosting, certificates, headers, and application security.