DNS Lookup Tool
Query A, AAAA, CNAME, MX, TXT, NS, and SOA records for any domain.
How to Use the DNS Lookup Tool
- Enter Domain Name: Type target domain (e.g., example.com) into the search bar.
- Select Record Type: Choose specific queries (A, AAAA, MX, TXT, NS, CNAME).
- View Results: Inspect parsed DNS response records and TTL values instantly.
Why Use This Tool
An instant domain DNS checker that works free in any web browser is essential for anyone managing website infrastructure, email setup, or domain troubleshooting. This tool queries A, MX, TXT, NS, and other DNS record types for any domain instantly, using Google's public DNS resolver. It provides a fast, clean alternative to command-line tools like nslookup or dig for anyone without terminal access handy.
How It Works
This DNS record checker queries Google's public DNS-over-HTTPS resolver directly from your browser, parsing the JSON response into a readable table of records with their type, TTL, and data values. It's a free, fast browser alternative to MXToolbox and DNSChecker.org for a quick record lookup without navigating a cluttered ad-heavy interface.
Key Features
The inspect-MX-records and domain-A-record-query tool supports all the commonly needed record types — A, AAAA, CNAME, MX, TXT, NS, and SOA — selectable from a simple dropdown. As a CNAME inspector and TXT record lookup tool, results display in a clean table format showing exactly what's currently published for a domain. Results display in a clean sortable-style table with full TTL values visible, matching what a technical audience expects from a DNS report. A status line reports the exact number of records found, empty or failed lookups explain clearly why no data appeared, and you can copy the full result or download it as a text file for documentation.
Common Use Cases
Web developers verify a domain's A record points to the correct server IP after a hosting migration. Email administrators check MX and TXT records to confirm SPF, DKIM, or DMARC configuration is live. Domain buyers inspect DNS records before purchasing a domain to understand its current setup, and support teams troubleshoot a customer's email delivery issue by checking their domain's mail records. Freelance developers confirm a client domain DNS is correctly pointed before handing off a completed project.
Tips for Best Results
DNS changes can take time to propagate globally, so if you just updated a record, don't be surprised if this tool briefly shows the old value while propagation completes. Always double-check the exact record type you need — MX records for email, A records for website hosting, and TXT records for verification codes are the most commonly confused.
Privacy & Security
Because ToolNest processes everything entirely within your browser using client-side JavaScript, your files never leave your device. There is no server-side storage, no third-party analytics attached to your data, and no risk of a breach exposing files you processed months ago.
What are DNS records and how do I inspect A, MX, and TXT entries?
DNS records map a domain to its associated services; select the record type from the dropdown and click Lookup to view current published values.
How long does DNS record propagation usually take?
Propagation can take anywhere from a few minutes to 48 hours depending on TTL settings and how widely cached the previous record was.
What is the difference between an A record and a CNAME record?
An A record points a domain directly to an IP address, while a CNAME record points a domain to another domain name.
Can I check DNS records for any domain, or only ones I own?
You can look up public DNS records for any domain, since this information is publicly published and queryable by design.