DNS Lookup API in { JSON }

NsJson queries the specified DNS server and retrieves records associated with the domain name you provided.

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Different Types of DNS Records

  • A record: the most basic type of record, also known as address record, provides an IPv4 address to a domain name or sub-domain name. That record points the domain name to an IP address.
  • AAAA record: maps the hostname to 128-bits IPv6 address.
  • CAA record: the most basic type of record, also known as address record, provides an IPv4 address to a domain name or sub-domain name. That record points the domain name to an IP address.
  • CNAME record: also known as Canonical Name record, creates an alias of one domain name. The aliased domain or sub-domain gets all the original Domain's DNS records and is commonly used to associate subdomains with existing main domain.
  • MX record: also known as Mail Exchange records, tells which mail exchange servers are responsible for routing the email to the correct destination or mail server.
  • NAPTR record: also known as Name Authority Pointer is a type of DNS record that allows the mapping of servers and user addresses in the Session Initiation Protocol (SIP).
  • NS record: also known as Name Server records, points to the name servers which have authority in managing and publishing DNS records of that domain.
  • PTR record: also known as Pointer record, points the IPv4 or IPv6 address to its machine's hostname.
  • SOA record: also known as Start of Authority records, provides essential information about the domain like identifying master node of domain authoritative nameserver, an email of the domain administrator, the serial number of DNS zone, etc.
  • SRV record: also known as Service record, indicates which specific services the domain operates along with port numbers.
  • TXT record: allows the website's administrator to insert any arbitrary text in the DNS record.

Benefits of our DNS Lookup API

DNS Lookup

DNS Lookup

NsJson.com does not cache the DNS responses it shows, but the DNS servers that are queried usually do respond with a cached record set. Except for authoritative DNS servers. They never serve cached DNS records.

Well-Defined Fields

Well-Defined Fields

Cleans up the records and pulls them apart into well-defined fields. Our system normalizes character sets and line endings, pulls the various fields from the raw text, and puts the fields in a consistent, automation-friendly format.

Low prices

Low prices

Our competitors have extremely high prices. We are a small structure so we have lower costs. The satisfaction of our customers is also one of our priorities.

Use case of DNS Lookup API

Threat Hunting

With time, organizations often forget about their outdated subdomains. You might be using old software, or software that is vulnerable to exploitation. Regular auditing of DNS zones will offer an insight into DNS-related vulnerabilities, letting you understand what needs to be addressed.

Control access

Use domain name in place of source or destination IP address to filter IP traffic and secure your network from unauthorized access.

Study your competition

DNS entries can help you determine the companies that your competitors are currently working with and might be relevant for you to approach as part of your business development efforts.

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Getting started