Chase Wiseman

Whatever your reasons, you may need your site’s visitors to confirm their age before viewing the content of your site. Age Verify does just that. It’s a simple plugin that lets you specify a minimum age and add an age-gate between a potential visitor and your content, just to be safe. Enjoy!

Age Verify

Like my review on another similar plugin, because this plugin uses PHP to check cookies, it doesn't work with cached pages...such as with the W3 Total Cache plugin or WP Engine.

Would be better with Javascript

A simple way to ask visitors for their age before viewing your content.

danielboven

This plugin can sign the webhook events sent by the Gravity Forms WebHooks Add-On to your endpoints by including a signature in each event’s <code>X-Gform-Signature</code> header. This allows you to verify that the events were sent by the Gravity Forms add-on, not by a third party. As of right now, you must verify the signatures by manually using your own solution. However, an example of a Node.js (JavaScript) implementation is linked below.
Before you can verify signatures, you need to retrieve your endpoint’s public key (more information at <a href="#how%20can%20i%20verify%20the%20signature%3F" rel="nofollow ugc">this question</a>).
This plugin uses the same keys for every form and endpoint, meaning that the same keys will be used for every signature generated.
<h3>Verification implementations</h3>
<ul>
<li>Node.js: See the example on <a href="https://github.com/danielboven/gravity-forms-webhook-signature/blob/main/examples/NODE_JS.md" rel="nofollow ugc">Github</a>.</li>
</ul>

Webhook Signature add-on for Gravity Forms

Add a signature HTTP header to webhook requests to prevent man-in-the-middle and replay attacks.

Age Verify vs Webhook Signature add-on for Gravity Forms