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When submitting a CAPTCHA task to Scrapely, you must provide the websiteKey (often called the “sitekey”). This is a unique identifier the website owner gets from the CAPTCHA provider (Google, Cloudflare, etc.) to load the challenge on their page. Finding this key is usually straightforward by inspecting the page’s HTML source code.

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reCAPTCHA (v2 and v3)

Google’s reCAPTCHA sitekeys always start with 6L and are 40 characters long.

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Method 1: Inspect the HTML

  1. Go to the page with the CAPTCHA.
  2. Right-click anywhere on the page and select Inspect (or press F12 / Ctrl+Shift+I).
  3. Press Ctrl+F (or Cmd+F on Mac) to open the search bar in the Elements tab.
  4. Search for data-sitekey.
  5. You should find an HTML element that looks like this:
<div class="g-recaptcha" data-sitekey="6LcQ3w4pAAAAABc123xyz_example_key_here"></div>
The value inside data-sitekey is your websiteKey.

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Method 2: Inspect Network Requests

If the data-sitekey attribute is hidden or injected dynamically:
  1. Open the Developer Tools (F12).
  2. Go to the Network tab.
  3. Refresh the page.
  4. Filter the requests by typing anchor or reload (for reCAPTCHA v2) or reload?k= (for reCAPTCHA v3).
  5. Click on the request made to www.google.com/recaptcha/api2/...
  6. Look at the request URL. You will see a parameter k=.
    • Example: https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LcQ3w4pAAAAABc123xyz_example_key_here&co=...
  7. The value after k= is your sitekey.

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Cloudflare Turnstile

Cloudflare Turnstile sitekeys usually start with 0x4AAAAAAA or 1x0000000 or 2x0000000 or 3x0000000.

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Method 1: Inspect the HTML

  1. Go to the page with the CAPTCHA.
  2. Open Developer Tools (F12) and go to the Elements tab.
  3. Press Ctrl+F and search for data-sitekey or cf-turnstile.
  4. You should find an element like this:
<div class="cf-turnstile" data-sitekey="0x4AAAAAAABc123xyz_example_key"></div>
The value inside data-sitekey is your websiteKey.

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Method 2: Inspect Network Requests

If the HTML element is dynamically injected:
  1. Open Developer Tools (F12) and go to the Network tab.
  2. Refresh the page.
  3. Filter the requests by typing challenge.
  4. Look for a request to https://challenges.cloudflare.com/turnstile/v0/api.js?onload=... or a POST request to /turnstile/v0/siteverify.
  5. In the request URL or Payload, look for the sitekey or cdata parameters.
  6. The sitekey will be a string starting with 0x4 (or 1x, 2x, 3x).
Once you have found the websiteKey, you can pass it to the Scrapely API along with the websiteURL to solve the challenge.