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

# Worker types

> Titan currently uses two different worker models for scraping execution.

They serve the same broad purpose, but they differ significantly in runtime environment, orchestration style, and operational model.

## Browser node workers

Browser nodes are standalone scraping workers that run outside the user's browser.

They are designed around:

* Browser automation with Playwright and Puppeteer
* Explicit node bootstrap and registration with the platform
* Work delivery from Titan’s orchestration layer
* Structured ingestion of results and media

This worker model fits the main modern Titan execution architecture.

## Chrome extension workers

Chrome extension workers are browser extension agents that execute jobs inside a browser environment.

They connect through Titan’s extension-oriented services. This model uses:

* Bootstrap discovery
* Harbor selection and authentication
* WebSocket-based job delivery
* Script injection into browser pages
* Extension-driven result reporting

This worker model is operationally distinct from browser nodes and should be documented as its own execution path.

## Why Titan documents both

From a user perspective, both worker models can support the same Titan **tasks** (extraction, navigation, and related automation). From an operator perspective, they are different systems with different lifecycle behavior and different control flows.

That is why the documentation treats worker types as a first-class concept instead of hiding them behind a generic "worker" label.

## Shared platform principles

Despite their differences, both worker models share the same high-level responsibilities:

* Receive or request work
* Execute scraping logic
* Return structured output
* Report status
* Integrate with a broader platform lifecycle

## Next steps

* [Browser node workers](/worker-guides/browser-node-workers)
* [Chrome extension workers](/worker-guides/chrome-extension-workers)
* [Worker security and trust model](/worker-guides/worker-security-and-trust-model)