CleanDNS Tools: DNS lookup

DNS lookups for hostnames.

Documentation

dns(target: string, options?: DnsParameters): Promise<DnsResponse>

Performs DNS resolution for a given hostname using specified or default DNS servers.

Parameters

• target (string): The hostname to resolve.
• options (DnsParameters): Optional parameters for DNS resolution.
  • tries (number): Number of attempts for each DNS query (default: 3).
  • timeout (number): Timeout for each DNS query in milliseconds (default: 1000).
  • servers (string[]): Array of DNS server IP addresses to use (default: shuffled list of predefined servers).

Returns

• Promise<DnsResponse>: A promise that resolves to a DnsResponse object containing the DNS records and any errors encountered.

DnsResponse

An object containing the resolved DNS records and any errors encountered.

• A (string[]): Array of IPv4 addresses.
• AAAA (string[]): Array of IPv6 addresses.
• MX ({ priority: number; exchange: string }[]): Array of MX records.
• NS (string[]): Array of NS records.
• TXT (string[]): Array of TXT records.
• SOA (object): SOA record.
• errors ({ query: string; code: string }[]): Array of errors encountered during DNS resolution.

Example

import { dns } from '@cleandns/dns';

dns('example.com', { tries: 5, timeout: 2000 })
  .then((response) => {
    console.log(response);
  })
  .catch((error) => {
    console.error(error);
  });

Installation

npm install @cleandns/dns

Caveats / limitations

• This package is currently intended for hostname lookups only. IPv4/IPv6 addresses are not supported.