Salesforce Web-to-Lead with Enable spam filtering

Web-to-Lead has been available for many years for Salesforce users, this feature is simple but allow you easily capture lead from your company website and the data goes directly to Salesforce.

The enhancements in Spring '17 release will allow you to enable spam filtering with reCAPTCHA from Google.

As per normal Web-to-Lead setup, navigate to Setup | Customize | Leads | Web-to-Lead, click "Create Web-to-Lead Form". Tick option for "Enable spam filtering (recommended)", then you need to create reCAPTCHA API Key Pair.

How to create reCAPTCHA API Key Pair?
1. Make sure you have Google account.
2. Navigate to Google reCAPTCHA page, login to Google account, and click Get reCAPTCHA button.
3. Enter label and domain name, make sure this is domain that you will use to host Web-to-Lead HTML.

4. Copy the Site Key and Secret Key.

Now, back to Salesforce setup page to enter reCAPTCHA API Key Pair created. Click lookup icon in reCAPTCHA API Key Pair, then click New button, enter API Key Pair Nickname, Secret Key and Site Key created earlier. Click Save button to store the keys for Web-to-Lead.

As per normal, continue with selecting fields to show in the web form, and the return URL.

Sample:

First Name		Last Name
Email		Company
City		State/Province
Industry	--None--Agriculture Apparel Banking Biotechnology Chemicals Communications Construction Consulting Education Electronics Energy Engineering Entertainment Environmental Finance Food & Beverage Government Healthcare Hospitality Insurance Machinery Manufacturing Media Not For Profit Other Recreation Retail Shipping Technology Telecommunications Transportation Utilities

Reference:

• Getting Started reCAPTCHA
• Google reCAPTCHA
• Generate Leads from Your Website
• Web-to-Lead: reCAPTCHA Web Form Validation