CAA lookup

Find all certification authority authorizations for a domain name with this online DNS CAA checker. For example, try yahoo.com or bilibili.com to view their CAA records.

How to lookup CAA records

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CAA records can be configured by the owner of a domain name. They are used to store information in the DNS, which can be looked up by anyone. Each record type has a different purpose.

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

Example output of a CAA lookup query

How to lookup CAA records on Windows

The CAA record type cannot be looked up in Windows. Neither nslookup, nor Powershell's Resolve-DnsName has support for it. You can either install WSL and follow the Linux instructions below, or use an online CAA lookup tool like the one on the top of this page.

How to lookup CAA records on Mac OS

To check the CAA 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 caa and hit [enter] to get the CAA records for example.com.CAA lookup on a Mac
  3. The CAA records are listed below the ANSWER SECTION heading.

How to lookup CAA records on Linux

To check the CAA 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 caa and hit [enter] to get the CAA records for example.com.CAA lookup in Linux
  3. The CAA records are listed below the ANSWER SECTION heading.

How to find CAA records

To check the CAA records of a domain, follow these steps:

  1. Open the CAA lookup tool.Open the CAA lookup tool
  2. Enter the domain name and hit [enter].Example DNS CAA records
  3. The tool will query the CAA records and shown them at the top of the page.

How to lookup other record types

There are other types of DNS records then just CAA. 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.