> ## Documentation Index
> Fetch the complete documentation index at: https://docs.verdexlab.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

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  <img src="https://mintcdn.com/verdex-docs/tnBp9lxQdyAPI3MJ/images/screenshot.png?fit=max&auto=format&n=tnBp9lxQdyAPI3MJ&q=85&s=70150b7ea74869f17b10d6d5fa58a4d0" width="1634" height="936" data-path="images/screenshot.png" />
</Frame>

Welcome to **Verdex**, a fast, collaborative, and open-source tool designed to
**detect online service versions through feature-based analysis**,
even when traditional versioning information is unavailable.
Verdex also **determines the accurate vulnerabilities** associated with the detected versions.

One of the biggest challenges in defensive cybersecurity is identifying vulnerabilities in exposed services,
which requires accurately determining the service version.

Instead of relying on exposed headers, Verdex quickly analyzes the features present on a service.
For example, **if a feature was introduced in a specific version, Verdex uses this information to deduce the
minimum version of the service** (see [How It Works](/how-it-works) for more information).

<Note>
  🪶 Verdex relies solely on **non-aggressive methods**, in particular by using mostly static assets (javascript, css and html files).
</Note>

<Warning>
  Any unauthorized use of Verdex to analyze or exploit online services is strictly prohibited and violates both our license agreement and applicable laws.
  **Verdex must be used with explicit authorization from the owner or administrator of the targets being scanned**.
</Warning>

## Essentials

<CardGroup cols={2}>
  <Card title="Quickstart" icon="wand-magic-sparkles" href="/quickstart">
    Learn how to run first Verdex detections in seconds.
  </Card>

  <Card title="Products" icon="crosshairs-simple" href="/essentials/products">
    Explore the services supported by Verdex and vote for the next ones.
  </Card>

  <Card title="Detection Options" icon="wrench" href="/essentials/options">
    Learn about the available Verdex options to optimize your scans.
  </Card>

  <Card title="Vulnerabilities" icon="light-emergency-on" href="/essentials/vulnerabilities">
    Discover how to obtain the list of vulnerabilities.
  </Card>

  <Card title="Output Formats" icon="right-from-bracket" href="/essentials/output">
    Learn about the different output formats that Verdex supports.
  </Card>
</CardGroup>

## Make it yours

<CardGroup cols={2}>
  <Card title="Contribute" icon="lightbulb" href="/contribute/introduction">
    How to contribute to Verdex by improving detections or reporting issues.
  </Card>
</CardGroup>