DNSDumpster
DNSDumpster searches domain records and related hosts for domain research and reconnaissance.
About DNSDumpster
DNSDumpster is a web-based domain research tool. It searches DNS records and discovers hosts related to a domain, so users can look up the records of a target and see which hosts are visible from the outside. The homepage presents it for domain research and reconnaissance, and describes it as a project of HackerTarget.
The homepage frames the tool around mapping an organization's attack surface, which it describes as a virtual dumpster dive of the DNS records associated with the target. It is intended for security assessment work, including penetration testing and bug bounty research, and for network defenders doing passive reconnaissance. The homepage does not state limits on scope, eligibility, or how lookups are processed or stored.
Key features
- Discovers hosts related to a given domain
- Looks up DNS records associated with a domain
- Maps an organization's attack surface from its DNS records
- Uses open source intelligence for network reconnaissance
Best for: Security professionals, such as penetration testers, bug bounty researchers, and network defenders, who need to research the visible hosts of a domain.
Good for
- The homepage describes the tool as free to use
- Focused on passive, open source intelligence for networks
- Presented for both offensive testing and defensive analysis
DNSDumpster at a glance
- Website
- dnsdumpster.com
- Category
- Privacy & Security › Security Tools
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Security Tools
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DNSDumpster FAQ
Is DNSDumpster free to use?
The homepage describes DNSDumpster as a FREE domain research tool. No paid plans are described on the homepage.
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