NSEC3 lookup

Find all Next secure (version 3) records for a domain name with this online DNS NSEC3 checker. For example, try medium.com or office365.com to view their NSEC3 records.

How to lookup NSEC3 records

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NSEC3 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.

NSEC3 records are configured in DNS. But how can you look up these NSEC3 records? That depends on the operating system you are using. Windows, Linux and Mac all have a different way of finding NSEC3 records. The sections below contain instructions for each operating system.

Example output of a NSEC3 lookup query

How to lookup NSEC3 records on Windows

The NSEC3 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 NSEC3 lookup tool like the one on the top of this page.

How to lookup NSEC3 records on Mac OS

To check the NSEC3 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 nsec3 and hit [enter] to get the NSEC3 records for example.com.NSEC3 lookup on a Mac
  3. The NSEC3 records are listed below the ANSWER SECTION heading.

How to lookup NSEC3 records on Linux

To check the NSEC3 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 nsec3 and hit [enter] to get the NSEC3 records for example.com.NSEC3 lookup in Linux
  3. The NSEC3 records are listed below the ANSWER SECTION heading.

How to find NSEC3 records

To check the NSEC3 records of a domain, follow these steps:

  1. Open the NSEC3 lookup tool.Open the NSEC3 lookup tool
  2. Enter the domain name and hit [enter].Example DNS NSEC3 records
  3. The tool will query the NSEC3 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 NSEC3. 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.