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Add Google reCAPTCHA v3 to your landing pages in LanderLab to protect your forms from bots and spam without asking visitors to solve any challenge or click any checkbox.

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What is reCAPTCHA v3?

Google reCAPTCHA v3 runs entirely in the background. It analyzes each visitor’s behavior on your page and assigns a score between 0.0 and 1.0, where 1.0 means very likely human and 0.0 means very likely a bot. This score is used to decide whether a form submission should be accepted or blocked. Visitors never see a challenge, a checkbox, or any visible widget. For real users, the experience is completely seamless. Bot submissions are blocked silently. LanderLab handles the reCAPTCHA v3 script installation and server-side token verification for you. Once the integration is added with your Site Key and Secret Key, reCAPTCHA v3 is automatically active on your landing page forms.
Once you add a reCAPTCHA v3 integration, it is saved globally in your account. You can reuse it across multiple landing pages without entering the details again.

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Before You Start

Before adding reCAPTCHA v3 in LanderLab, you need to register your site in the Google reCAPTCHA Admin Console and get both your Site Key and Secret Key. This takes about 2 minutes.
1

Go to the reCAPTCHA Admin Console

Open the Google reCAPTCHA Admin Console and sign in with your Google account.
2

Register a new site

Click the + button (or Create) to register a new site. Fill in the following:
3

Accept and submit

Accept the reCAPTCHA Terms of Service and click Submit.
4

Copy both keys

After submitting, Google will display your Site Key and Secret Key. Copy both. You will need both to add reCAPTCHA v3 in LanderLab.
Never share your Secret Key publicly. Unlike the Site Key, the Secret Key is a private credential used for server-side verification. Keep it out of any public code, repositories, or shared documents.

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How to Add reCAPTCHA v3 in LanderLab

1

Go to your landing page

Navigate to Landing Pages and click the name of the landing page where you want to enable reCAPTCHA v3 protection.
2

Open the Integrations tab

Click Add Integration to open the integrations panel.
3

Select reCAPTCHA v3

From the list of available integrations, find reCAPTCHA v3 (labeled as “Protect your forms from bots with reCAPTCHA v3”) and click on it. A configuration form will appear.
4

Fill in the required fields

Enter the following details:
5

Click Add reCAPTCHA v3

Click the Add reCAPTCHA v3 button to save the integration. LanderLab stores this globally, so you can connect it to other landing pages later without re-entering the details.
6

Publish your landing page

Click Publish or Republish your landing page to activate reCAPTCHA v3 on your forms. The protection runs silently in the background. Visitors will not see any visible widget or challenge.
Recaptcha V3

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Connect reCAPTCHA v3 to Another Landing Page

Since reCAPTCHA v3 integrations are saved globally, you do not need to create a new one for every landing page.
1

Open a different landing page

Go to Landing Pages and click the name of the landing page where you want to use the same reCAPTCHA v3 integration.
2

Add Integration

Click Add Integration. You will see your previously saved reCAPTCHA v3 configurations listed. Select the one you want to connect.
3

Select variants (if applicable)

If your landing page has multiple A/B test variants, a modal will appear asking you to choose which variants should use this integration. Select the variants you want and confirm.
The variant selection modal only appears when your landing page has more than one active variant. If there is only one variant, the integration is applied automatically.
4

Save and publish

Click Save, then Publish or Republish your landing page to activate reCAPTCHA v3 on the selected variants.

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reCAPTCHA v2 vs. reCAPTCHA v3

Not sure which version to use? Here is a quick comparison: Both versions protect your forms from bots and spam. reCAPTCHA v3 is generally preferred for lead generation landing pages because it does not add any friction for real visitors.

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Tips for reCAPTCHA v3

  • Make sure your domain matches - The domain you entered in the Google Admin Console must match the domain your landing page is published on. If they do not match, reCAPTCHA will not work correctly.
  • Both keys are required - Unlike v2, reCAPTCHA v3 requires both the Site Key and the Secret Key. Make sure you copy both from the Google Admin Console before setting up the integration in LanderLab.
  • You will not see a visible widget - reCAPTCHA v3 is fully invisible. If you want confirmation it is working, check your Google reCAPTCHA Admin Console for analytics data after a few test submissions.