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cf-browser Fetch any webpage as markdown, JSON, or screenshot using Cloudflare Browser Rendering. Use when web_fetch fails on JS-heavy pages (SPAs, Zillow, Redfin, PCPAO, Cloudflare-protected sites). Handles full JS rendering on Cloudflare global network.

Cloudflare Browser Rendering

Use this skill when you need to fetch a webpage that WebFetch can't handle — JS-heavy SPAs, sites behind Cloudflare protection, or pages that need full browser rendering to load content.

When to use

  • WebFetch returns empty/incomplete content
  • The site is a SPA (React, Vue, etc.) that requires JS execution
  • The site is behind Cloudflare bot protection
  • You need a visual screenshot of a page
  • You need to scrape specific elements via CSS selectors

How to call

The script is at /home/johan/clawd/skills/cf-browser/scripts/cf-fetch.sh.

Get page as markdown (most common)

/home/johan/clawd/skills/cf-browser/scripts/cf-fetch.sh markdown https://example.com

Returns clean markdown of the rendered page. This is the best option for reading page content.

Take a screenshot

/home/johan/clawd/skills/cf-browser/scripts/cf-fetch.sh screenshot https://example.com [output.png]

Saves a PNG screenshot to the specified path (defaults to /tmp/screenshot.png). Use this when you need to see what a page looks like visually.

Scrape structured data with CSS selectors

/home/johan/clawd/skills/cf-browser/scripts/cf-fetch.sh scrape https://example.com ".price, .title"

Returns JSON with the text content of elements matching the given CSS selectors. Use this when you need specific data points from a page.

Interpreting output

  • markdown: Raw markdown text printed to stdout. Pipe or capture as needed.
  • screenshot: Prints the output file path on success. View the PNG with your screenshot/image tools.
  • scrape: JSON array printed to stdout. Each element has selector, results with matched text content.

Error handling

If the API returns an error, the script prints the error message to stderr and exits with code 1. Common issues:

  • Invalid URL (must include https://)
  • Cloudflare API rate limits
  • Page timeout (very slow sites)