Our subdomains lookup intelligence reveals every subdomain a domain name has, including when these were last modified.
Query results with both parsed and raw fields are returned in popular formats—Extensible Markup Language (XML) and JavaScript Object Notation (JSON)—allowing for easy integration.
Our Subdomains Lookup API works for nearly all top-level domains (TLDs).
Use Subdomains Lookup API in addition to Domain Research Suite to correlate WHOIS records with subdomain intelligence when doing in-depth investigations and research.
Know all your network’s weakest points to fortify your cyber defense. Identifying all your subdomains and making sure these are sufficiently protected at all times is essential to optimize your cybersecurity posture.
Finding subdomains is an important step in the information gathering phase of a penetration test. Ensure that none of your unused or forgotten subdomains are left dangling, making them easy targets for attackers to gain unauthorized entry into your network.
Only by examining even the subdomains of suspicious sites can you truly stay protected from all kinds of possible harm. Include every malicious subdomain (even those not identified as indicators of compromise [IoCs]) in your blacklists for greater security.
Digging as deep as possible into your web infrastructure lets you evaluate all connected systems for vulnerabilities. Make a quick self-assessment to uncover all potential weak points, outdated software, or misconfigurations.
Screen your competitors' subdomain additions to understand their web infrastructure better.
Identify possible business development opportunities as subdomains can reveal the types of digital business partners a prospect is currently working with.
Build your own products and enrich them with our high-value data. Every API response is returned in JSON and XML formats, which is compatible with popular coding languages.
Easily detect all typosquatting domain names as soon as they are registered each day.
Learn moreFind out the exact physical location of any IP address, email or domain name.
Learn moreFind out which domains were added or dropped by registrants, with given search criteria.
Learn moreWe provide complete and relevant domain WHOIS data which can be customized and easily integrated as per your business needs.
Learn moreMonitor exact matches, variations and common misspellings of your brand name & trademarks.
Learn moreEnhance your domain research toolkit by our enterprise-grade web-based solution that helps you in searching...
Learn moreFind domains and subdomains related by specific terms in their hostnames.
Learn moreGet insights for the new business registered on the web.
Learn moreGet the most relevant data to be ahead of emerging security threats.
Learn moreAssess the domain's or IP addresses reputation and risk profile with a simple score based on a comprehensive...
Learn moreGet well-parsed and normalized WHOIS information for any domain name, IP address or email.
Learn moreGet data feeds of new registered domains along with their WHOIS data generated in real time.
Learn moreGet a complete daily list of all the registered domains and zone files.
Learn moreGet the benefits of accessing up-to-date subdomain data along with all other sources of domain and IP intelligence. Subscribe to an annual plan that fits your business requirements now.
Learn moreGet free access to our API. 100 free credits monthly. No credit card required.
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