# BuiltWith

> Find out what websites are built with.

BuiltWith detects the technologies used on any website including CMS, ecommerce platforms, analytics,
frameworks, hosting providers, and more.

## Start Here (For LLMs and AI Agents)

Use the API-focused LLM guide first:
- https://api.builtwith.com/llms.txt

This file is a high-level product map. The API LLM guide above contains detailed endpoint usage.

## Core BuiltWith Links

- Website lookup: `https://builtwith.com/[domain]`
  - Example: https://builtwith.com/example.org
- Natural language Ask tool: https://builtwith.com/ask
- Technology trends and market movement: https://trends.builtwith.com
- MCP endpoint for AI integration: https://api.builtwith.com/mcp
- API LLM guide (primary): https://api.builtwith.com/llms.txt

## Programmatic Access

For direct API requests, use the official API docs and endpoint details:
- https://api.builtwith.com

Popular API families include:
- Domain technology lookup
- Technology and company lists
- Relationships / related sites
- Trust and risk signals
- Redirect and keyword data
- API-based trends data

## Notes

- Bots/AI agents may be blocked on interactive website pages.
- For reliable automated access, use the API and MCP routes.