> ## Documentation Index > Fetch the complete documentation index at: https://docs.pockla.io/llms.txt > Use this file to discover all available pages before exploring further. # JavaScript Snippet > Add personalization to your website with a single script The Pockla snippet enables personalized content on your website. When a visitor arrives via a Pockla link, the snippet detects it and loads their personalized experience. ## The Snippet ```html theme={null} ``` That's it. Just one line that should be added at the very top of the `` section. ## How It Works 1. A visitor clicks a Pockla link (which includes a `pklid` parameter in the URL) 2. The snippet reads the `pklid` from the URL 3. It loads a personalized script from `embed.pockla.io` for that visitor 4. The page content is personalized before the visitor sees it If no `pklid` parameter is present, the snippet does nothing — zero overhead for regular visitors. ## Platform-Specific Instructions Any website with HTML access Shopify stores Webflow sites WordPress sites ## Verifying Installation After adding the snippet: 1. Open your website in a browser 2. Right-click the page and select **View Page Source** 3. Search for `pklid` — you should see the Pockla snippet in the `` section The snippet only activates when a visitor arrives via a Pockla link, so it won't make any network requests on a normal page load. To see it in action, send yourself a Pockla link and click through to your site. ## Frequently Asked Questions No. The inline snippet is tiny and only loads an external script when a `pklid` parameter is present. Regular visitors without a Pockla link see zero additional network requests. Yes. Pockla is designed with security and privacy in mind. The snippet only loads personalization for visitors who arrive via your Pockla links. We don't recommend GTM for Pockla. GTM loads scripts with a delay, which can cause a flash of unpersonalized content. Install the snippet directly in your `` for the best experience. Yes. Simply delete the snippet from your site and personalization stops immediately. ## Need Help? If you run into issues during installation, contact our support team. Get help with installation