nowfound

Dev tools · June 8, 2021

Subdomains Lookup

Instantly returns the subdomains of 582 million domain names

Subdomains Lookup launched on June 8, 2021 with 7 votes, #1,389 of 3,650 launches that month. The site was still online in September 2026, 5 years on.

Visit subdomains.whoisxmlapi.com ↗Subdomains Lookup alternatives

What it does

Our subdomain finder tools include a lookup, an API, and a data feed, and allow you to get a list of all the subdomains of a root domain. The tool obtains data from a database containing over 2.3 billion subdomains, with over 1 million records added daily.

Find all the subdomains of a domain with our subdomain finder tools. Access 9.6+ billion subdomains from 10+ years of data crawling. Get started today.

Provide current and historical ownership information on domains / IPs. Identify all connections between domains, registrants, registrars, and DNS servers. Look into all current and historical DNS / IP connections between domains and A, MX, NS, and other records. Monitor suspicious changes to DNS records . Get detailed context on an IP address, including its user’s geolocation, time zone, connected domains, connection type, IP range, ASN, and other network ownership details. Access our web-based solution to dig into and monitor all domain events of interest. Get access to a web-based enterprise-grade solution to search and monitor domain registrations and ownership details for branded terms,…from subdomains.whoisxmlapi.com

Does a similar job

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  • find.domains2023 · ▲18

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  • SEO Domain Finder2023 · niteo.co · ▲66

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  • Subdomain CenterAug 2026 · subdomain.center · ▲1

    World's Largest Subdomain Database

  • ICanHasDomain2021 · ▲79

    Available domain names no one knows, until now

  • Registered Domain Names Search2017 · domainsdb.info · ▲22

    Access our comprehensive domain database through a powerful API. Check domain availability and status with simple HTTP requests.

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