TLSA lookup

Find all TLS certificate associations for a domain name with this online DNS TLSA checker. For example, try miit.gov.cn or creativecommons.org to view their TLSA records.

How to lookup TLSA records

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TLSA 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.

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

Example output of a TLSA lookup query

How to lookup TLSA records on Windows

The TLSA 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 TLSA lookup tool like the one on the top of this page.

How to lookup TLSA records on Mac OS

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

How to lookup TLSA records on Linux

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

How to lookup other record types

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