What this tool does
VM APIPublic target
- A, AAAA, MX, TXT and CNAME.
- SPF, DKIM and DMARC.
- RDAP and DNSSEC.
Privacy
Local tools run in the browser. API modules query only public targets and block private networks.
DNS and email checker
Check DNS records, SPF, DKIM, DMARC, DNSSEC and RDAP for a public domain.
Quick guide
When to use it
Use the DNS checker when a site does not resolve, email lands in spam, or you just changed a DNS zone and want to inspect public records.
What to watch
SPF describes who may send email, DKIM signs messages, and DMARC tells receivers what to do when SPF or DKIM fails.
Quick example
For a domain like cloudflare.com or google.com, run the check and compare A, AAAA, MX, TXT, SPF, DKIM and DMARC blocks.
Frequently asked questions
What is an MX record?
An MX record tells the internet which servers receive email for a domain.
Why check SPF, DKIM and DMARC?
These signals reduce spoofing and improve email deliverability.
Does the tool scan my network?
No. It queries public domains only and blocks private or local targets server-side.