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How to Add a Cookie Banner on a Drupal Website

How to Add a Cookie Banner on a Drupal Website

Last updated Mar 15, 2026

This guide shows you how to add the Kukie.io cookie consent banner to your Drupal website. The recommended approach is to edit your theme's template file for site-wide coverage.

Prerequisite: You need a Kukie.io account and at least one site added. If you haven't done this yet, follow Create Your Account & Add Your First Site first.

Step 1: Get Your Embed Code

Log in to your Kukie.io dashboard, navigate to your site, and copy the embed code from the Setup tab. It looks like this:

<script src="https://cdn.kukie.io/s/YOUR-SITE-KEY/c.js" async></script>

Replace YOUR-SITE-KEY with the actual site key shown in your dashboard.

Step 2: Add the Script to Drupal

In Drupal, the recommended way to add a site-wide script is through your theme's template file:

  1. Open your theme's html.html.twig file (usually at themes/your_theme/templates/html.html.twig)
  2. Find the <head> section and add the Kukie.io embed code: 
    <script src="https://cdn.kukie.io/s/YOUR-SITE-KEY/c.js" async></script>
  3. Clear Drupal's cache: go to Configuration → Performance → Clear all caches, or run drush cr

Alternative — Asset Library: You can also add the script via a *.libraries.yml entry in your theme, but for an external script that needs to load before everything else, the direct template approach is simpler and more reliable.

Step 3: Verify the Installation

Visit your website in a new browser window (or incognito/private mode). You should see the Kukie.io consent banner appear. If it does not show, check the following:

  • Open your browser's Developer Tools (F12) and look for the script in the Network tab — it should load with a 200 status
  • Check the Console tab for any JavaScript errors
  • Make sure you published/saved your changes in Drupal
  • Clear any platform-level cache if applicable

For a detailed verification walkthrough, see How to Verify Your Banner Installation.

Next Steps

Need help? If you run into any issues, contact our support team and we'll help you get set up.

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