DNS A Record Lookup - Find IPv4 & IPv6 Addresses
Look up A and AAAA records for any domain to find its IPv4 and IPv6 addresses. Troubleshoot DNS issues and verify domain configurations with our free tool.
Understanding DNS A and AAAA Records
What are DNS A Records?
DNS A (Address) records are fundamental components of the Domain Name System that map domain names to IPv4 addresses. When you enter a website address in your browser, A records tell your computer which server to connect to.
Each A record contains:
- Hostname: The domain or subdomain name
- IPv4 Address: The 32-bit IP address (e.g., 192.0.2.1)
- TTL (Time To Live): How long the record should be cached (in seconds)
What are DNS AAAA Records?
DNS AAAA records (pronounced "quad-A") serve the same purpose as A records but for IPv6 addresses. As the internet transitions to IPv6, AAAA records are becoming increasingly important.
IPv6 addresses are 128-bit addresses written in hexadecimal format (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
Why Use This Tool?
- Troubleshooting: Verify that your domain is pointing to the correct IP address
- Migration: Check DNS propagation after moving to a new server
- Security: Ensure no unauthorized A records have been added
- IPv6 Support: Verify your domain is configured for IPv6
- Load Balancing: Check if multiple A records are configured correctly
Frequently Asked Questions
What is a DNS A record?
A DNS A (Address) record maps a domain name to an IPv4 address. It tells browsers and other services which IP address to connect to when accessing your domain.
What is a DNS AAAA record?
A DNS AAAA record maps a domain name to an IPv6 address. It serves the same purpose as an A record but uses the newer IPv6 protocol.
Why would a domain have multiple A records?
Multiple A records enable load balancing and redundancy. If one server goes down, traffic can be routed to another server automatically.
What does TTL mean?
TTL (Time To Live) indicates how long (in seconds) DNS resolvers should cache the record before querying again. Lower TTL values mean faster updates but more DNS queries.
How long does DNS propagation take?
DNS propagation typically takes 1-48 hours, depending on TTL values and how DNS servers are configured. Most changes are visible within a few hours.
Understanding This Tool
What It Does
Look up A records (address records) for a domain to find the IPv4 address that a domain name resolves to. This is the most basic DNS lookup showing where a website's servers are located.
Understanding the Results
- A Records: IPv4 address(es) the domain resolves to
- IP Address: The actual IPv4 address (e.g., 93.184.216.34)
- TTL: Time to live before the record should be re-queried
- Hosting Provider: Information about who hosts the IP
Common Use Cases
- Website Access: Find the IP address of a website to access it
- Hosting Verification: Check which data center hosts a domain
- Load Balancing: See multiple A records for load-balanced domains
- Geo-Routing: Verify different IPs are served to different geographic locations
- DNS Troubleshooting: Test basic DNS resolution
Pro Tips & Best Practices
- Multiple A Records: A domain can have multiple A records for redundancy and load balancing
- IPv4 Only: A records only show IPv4; use AAAA for IPv6
- TTL Impact: Low TTL allows for quick failover; high TTL reduces DNS load
How this tool works: This tool runs in your browser and on our server in real time. Depending on the tool, results are computed directly from the input you provide or retrieved from live, authoritative data sources at the moment you run a lookup. We do not sell your data, and your lookups are kept private — any history shown here is stored only on your device.