DNSdumpster

Operator: Hacker Target Pty Ltd, Australia

Finds subdomains, DNS records and associated infrastructure from collected internet data.

Technical Infrastructure

Product

DNSdumpster.com, a web service with its own API. HackerTarget scanners and DNSdumpster Unplugged are separate offerings.

Availability and source date

Active

As of: 16 October 2026.

No functionality test has been performed.

Use in OSINT research

Provides leads on hosts, IP addresses and network providers associated with a domain. Entries come from collected sources and are not a complete inventory of an organisation.

Queries

Input	Result	Result type
Domain / website	Subdomains, A, CNAME, MX, NS and TXT records, plus associated IPs, ASNs and service information.	Retrieved
IP address	Service banners available in the data collection for an IP address or CIDR network.	Retrieved

Features

Collect subdomains and DNS records for a domain.
Link IP addresses to network providers and ASNs.
Search existing service banners for an IP network.
Display domain infrastructure as a map.
Retrieve results through its own JSON API.

Coverage

Dataset

DNS data from Certificate Transparency logs, search engines and Common Crawl, supplemented by associated IP, ASN and service banner data. Country coverage is not specified.

Access

Requirements

Web service with free access. Membership and its own API require an account; the API key is available in the account.

Export

JSON through the API. Plus can return a domain map as Base64 data in the JSON response.

Provider

Hacker Target Pty Ltd

Country of establishment

Australia

Interfaces

API

Available. DNSdumpster’s own API for domain and banner data, with an API key. At most one query every two seconds; allowances depend on membership.

Product or documentation

MCP

Not documented. Not specified on the product and API pages reviewed.

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