Free DNS Record Checker Online
Understand DNS record types and validate domain configurations.
Key Features
⚡ Fast Processing
Instant DNS record type validation and explanation.
🔒 Privacy Protected
All processing runs locally in your browser. No data sent to servers.
How to Use DNS Checker
Enter a Domain Name
Type a domain name you want to check DNS records for.
Select a Record Type
Choose from A, AAAA, CNAME, MX, or TXT record types.
View Record Information
See explanations, validation rules, and expected format for each DNS record type.
Frequently Asked Questions
Basics
What are DNS records?
DNS records are instructions that tell the DNS system how to handle a domain. Common types include A (IPv4 address), AAAA (IPv6), CNAME (alias), MX (mail), and TXT (text data).
What is an A record?
An A record maps a domain name to an IPv4 address, allowing browsers to find the server hosting the website.
Features
Can this tool query real DNS servers?
Actual DNS queries require a server-side API. This tool provides record type explanations, validation rules, and format guidance.
What is an MX record?
An MX (Mail Exchange) record directs email to a mail server. It includes a priority number — lower values have higher priority.