A lookup

Find all IPv4 addresses for a domain name with this online DNS A checker. For example, try google.com or youtube.com to view their A records.

How to lookup A records

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A records can be configured by the owner of a domain name. They are used to link IPv4 addresses to a domain name. IPv6 addresses are stored as AAAA records. Both IPv4 and IPv6 addresses are most commonly used by web browsers like Google Chrome, in order to find the web server that should be contacted to display a website. Strictly speaking, A and AAAA records are not limited to this, but other uses are rare in comparison.

A records are configured in DNS. But how can you look up these A records? That depends on the operating system you are using. Windows, Linux and Mac all have a different way of finding A records. The sections below contain instructions for each operating system.

Example output of a A lookup query

How to lookup A records on Windows

To check the A records for a certain domain name on Windows, follow these steps:

  1. Open a command prompt by navigating to Start → 'Type here to search' → 'cmd' → Open.Open a command prompt in Windows
  2. Type nslookup -q=A example.com and hit [enter] to get the A records for example.com.A lookup in Windows
  3. The A records are listed below the Non-authoritative answer heading.

How to lookup A records on Mac OS

To check the A records for a certain domain name on a Mac, follow these steps:

  1. Open a terminal by entering [command] + [space] → 'terminal.app' → [enter].Open a terminal on a Mac
  2. Type dig example.com A and hit [enter] to get the A records for example.com.A lookup on a Mac
  3. The A records are listed below the ANSWER SECTION heading.

How to lookup A records on Linux

To check the A records for a certain domain name on Linux, follow these steps:

  1. Open a terminal by entering [Super] → 'terminal' → [enter].Open a terminal in Linux
  2. Type dig example.com A and hit [enter] to get the A records for example.com.A lookup in Linux
  3. The A records are listed below the ANSWER SECTION heading.

How to lookup other record types

There are other types of DNS records then just A. The most commonly used DNS record types are A, AAAA, CNAME, NS, TXT, MX and SOA. If you'd like to look up all records of these record types, you can do so with nslookup. Click any of the record types below to find DNS records for that specific record type.