What is a DNS Lookup Tool?
A DNS Lookup tool queries the Domain Name System (DNS), the internet's "phonebook," to retrieve the records associated with a domain name. Each record type serves a different purpose, from pointing a domain to an IP address (A record) to handling email (MX record).
This tool is essential for web developers, network administrators, and cybersecurity professionals to diagnose connection issues, verify domain configurations, and investigate a domain's infrastructure.
How It Works
Enter or Paste Domain
Input the website address you want to check, or simply click the "Paste" button.
Select Record Type
Choose the DNS record you want to look up, or select "ALL".
Query DNS Servers
Our tool securely queries public DNS servers for the records.
View Results
Get a clean, easy-to-read list of all the returned DNS records.
DNS Lookup
Want to Learn the Most Useful Free DNS Tools for Developers?
We published a practical developer-focused guide covering the most useful free DNS tools, including DNS lookup, dig, nslookup, MX lookup, propagation checking, troubleshooting techniques, and real-world debugging workflows.
📘 Read Full DNS Tools Guide →Written by Bhavin Sheth • Founder of AllInOneTools
Key Features
Comprehensive Lookup
Check for A, AAAA, MX, CNAME, TXT, and NS records, or all at once.
Reliable API
Powered by Google's Public DNS API for fast and accurate results.
Clean & Readable
Results are parsed and displayed in a clear, easy-to-understand format.
Shows TTL
Displays the "Time To Live" for each record, indicating its cache duration.
Email Server Check
Use the MX record lookup to verify email server configurations.
One-Click Copy
Copy all the discovered DNS records to your clipboard for easy use.
Want to Learn How DNS Works in Depth?
We've published a complete guide covering all DNS record types — A, CNAME, MX, TXT, NS and more — with real examples and when to use each one.
📘 Read Full DNS Guide on Hashnode →Written by Bhavin Sheth • Founder of AllInOneTools
Practical Use Cases
Troubleshooting
Diagnose website connectivity issues by checking if A and CNAME records are pointing to the correct IP address or alias.
Email Configuration
Verify that MX records are correctly configured to point to your email provider, ensuring reliable email delivery.
Ready to Investigate a Domain's DNS?
Enter any domain in the lookup tool above to get its full DNS record report instantly!
Start Your Lookup NowFrequently Asked Questions
What is an A Record?
The "A" or "Address" record is the most basic DNS record. It points a domain name (like www.example.com) to a specific IPv4 address (like 192.0.2.1).
What is an MX Record?
The "Mail Exchanger" (MX) record specifies which mail servers are responsible for accepting email for a domain. It includes a priority number to indicate the preferred server.
What does TTL mean?
TTL stands for "Time To Live." It's a value in seconds that tells DNS resolvers how long they should cache (store) a DNS record before querying for it again. A lower TTL means changes propagate faster.
Is this DNS Lookup tool free?
Yes, our DNS Lookup tool is 100% free to use, with no limitations on the number of lookups you can perform. No login or signup is required.
What is the difference between a DNS lookup and a Whois lookup?
A DNS lookup retrieves technical records about a domain — like IP addresses, mail servers and CNAME aliases. A Whois lookup retrieves ownership information like who registered the domain, when it expires and which registrar manages it.
What is DNS propagation and how long does it take?
DNS propagation is the time it takes for DNS record changes to spread across all DNS servers worldwide. It typically takes 24 to 48 hours for full propagation, although many changes are visible within 1 to 4 hours depending on the TTL value set.
What is a CNAME record?
A CNAME or Canonical Name record maps a domain to another domain name as an alias. For example, www.example.com may be a CNAME pointing to example.com, which itself has an A record pointing to an IP address.
What is a TXT record used for?
A TXT record stores text information for a domain. It is commonly used for domain ownership verification, SPF records to prevent email spoofing, DKIM records for email authentication, and DMARC policies.
Why are my DNS changes not showing?
DNS changes may appear unchanged due to TTL caching — your browser or ISP may be showing cached results. Try flushing your local DNS cache or use our DNS Lookup tool above to check the live record directly from authoritative nameservers.
Trusted by Thousands for 100+ Free Online Tools
Join a growing community of creators, developers, and businesses who rely on our all-in-one tools platform for secure, fast, and free online tools. Your trust is our top priority—no sign-ups, no hidden costs, and complete privacy.
Conclusion
Our Free DNS Lookup Tool is an essential utility for anyone managing or researching websites. By providing fast, accurate, and comprehensive DNS record information powered by Google's reliable API, this tool helps you troubleshoot connectivity issues, verify configurations, and gain valuable insights into a domain's technical setup. Whether you're a developer, a system administrator, or just curious, our tool makes understanding the DNS simple and accessible.
Have Questions or Need a Custom Tool?
Our team is here to help. Whether you have feedback on our tools or need a custom solution for your business, we'd love to hear from you.
Get in touch with us for support, suggestions, or partnership inquiries.
Contact Us