subfinder - Fast passive subdomain enumeration tool.

项目说明

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<h4 align="center">Fast passi enumeration 工具.</h4>

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<a href="#features">Features</a> •
<a href="#installation">Install</a> •
<a href="#running-subfinder">Usage</a> •
<a href="#post-installation-instructions">API Setup</a> •
<a href="#subfinder-go-library">Library</a> •
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subfinder is a subdomain discovery 工具 that returns valid subdomains for websites, using passi sources. It has a simple, modular architecture and is optimized for speed. subfinder is built for
doing one thing only - passi enumeration, and it does that very well.

We have made it to comply with all the used passi licenses and usage restrictions. The passi guarantees speed and stealthiness that can be le by both penetration testers and bug bounty
hunters alike.

Features

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<img src="static/subfinder-run.png" alt="subfinder" width="700px"></a>
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Usage

This will display help for the 工具. Here are all the switches it supports.

En

Subfinder supports en to specify custom paths for configuration files:

Installation

subfinder requires go1.26 to install successfully. Run the following command to install the latest :

Learn about more ways to install subfinder here:

Post Installation Instructions

subfinder can be used right after the installation, however many sources required API keys to work. Learn more here:

Running Subfinder

Learn about how to run Subfinder here:

Subfinder Go library

Subfinder can also be used as library and a minimal examples of using subfinder SDK is a here

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Resources

License

subfinder is made with 🖤 by the projectdiscovery team. Community contributions have made the project what it is. See
the THANKS.md file for more details.

Read the usage disclaimer at DISCLAIMER.md and contact us for any API removal.

项目信息

开发语言：Go

Star 数：14558

技术要点

该项目属于黑客技术方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕Fast passive subdomain enumeration 工具.展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。