Rendered Text

Load any URL in a headless browser and extract the visible page text after JavaScript has executed.

API Reference

GET /text

Returns the document title and normalized visible text from document.body.innerText.

Example Request

curl "https://your-worker.workers.dev/text?url=https://www.cloudflare.com"

Success Response

url string

The normalized URL that was loaded

title string

The page <title> after rendering

text string

Visible text with whitespace collapsed

textLength number

Length of the returned text in characters

truncated boolean

Whether the text was truncated at 50,000 characters

{
  "url": "https://www.cloudflare.com/",
  "title": "Connect, protect, and build everywhere",
  "text": "Connect, protect, and build everywhere ...",
  "textLength": 1234,
  "truncated": false
}

Error Response

{
  "error": "Missing or invalid query parameter: url",
  "code": "INVALID_URL"
}

Error Codes

• 400 - Missing or invalid url parameter
• 502 - Navigation or extraction failed (RENDER_ERROR)

Use Cases

• Scrape single-page apps and client-rendered content
• Feed rendered page text to LLM pipelines
• Compare static fetch vs browser-rendered output
• Build search indexes for JavaScript-heavy sites

Limitations

• Requires Browser Rendering enabled on your Cloudflare account
• Local development needs npx wrangler dev --remote
• Extracted text is truncated at a maximum length
• Navigation timeout on slow or script-heavy pages

Deployment

curl "https://your-worker.workers.dev/text?url=https://www.cloudflare.com"

Local Development

cd apps/experiments/rendered-text
npm install
npm run dev

Test locally:

curl "http://localhost:8787/text?url=https://www.cloudflare.com"

Cloudflare Features Used

• Workers - Edge compute runtime
• Browser Rendering - Headless Chromium via @cloudflare/puppeteer
• Puppeteer DOM evaluation - Extract rendered text after networkidle0