TiloBox
Back to directory
subfinder project preview
Developer ToolsAlternative to AmassAlternative to FindomainAlternative to Assetnote

subfinder

Fast and passive subdomain discovery tool designed to enumerate valid subdomains for websites.

View on GitHub Visit website
LicenseMIT
GitHub stars10.5k
Last commit1 weeks ago
Tags5 topics
Projectdiscovery ToolSecurity ScannerPassive ReconnaissanceSubdomain DiscoverySecurity
Overview

Why consider subfinder?

subfinder is an open-source passive subdomain enumeration tool written in Go by ProjectDiscovery. subfinder queries dozens of passive sources (SecurityTrails, Censys, Shodan, VirusTotal) without making active connection probes to the target infrastructure.

Guided learning

Learn subfinder by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of subfinder

subfinder discovers organizational subdomains quickly using passive reconnaissance feeds.

Quickstart

bash
1go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
2subfinder -d example.com

subfinder is licensed under the permissive MIT License.

Related tools

More options with a similar category or technology profile.

diskus logo

diskus

Minimal, fast alternative to du -sh written in Rust using multi-threaded directory traversal.

peco logo

peco

Simplistic interactive filtering tool for Unix pipelines, process lists, and file trees.

Dapr CLI logo

Dapr CLI

Command-line tool for managing Dapr distributed application runtime environments and sidecars.

Freeze logo

Freeze

Generate beautiful image screenshots and SVGs of code snippets and terminal outputs.

subfinder FAQs

subfinder is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

subfinder is listed under the MIT license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

subfinder is listed as an alternative to Amass. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.