> ## Documentation Index > Fetch the complete documentation index at: https://docs.nemu.com.br/llms.txt > Use this file to discover all available pages before exploring further. # Landing Pages > How to install the UTM forwarding script on landing pages that direct to checkout ## UTM forwarding script ### When to use If you have a **landing page** (sales page, capture page, or any intermediate page) that directs the visitor to the **checkout**, you need to install the UTM forwarding script on that page. It is generic and works on any page that allows you to insert HTML/JavaScript code, including pages created in AI-powered no-code builders, such as: * **Lovable** * **Base44** * **Bolt** * **v0** * **Replit** * Any other builder that generates pages with its own code If your platform already has a specific guide (such as [Framer](/en/onboarding/integrations/framer), [WordPress](/en/onboarding/integrations/wordpress), [Hotmart](/en/onboarding/integrations/hotmart) or [Inlead](/en/onboarding/integrations/inlead)), follow its dedicated guide. Use this page only for generic pages or builders without their own integration. ### Why it's important The UTM forwarding script plays a crucial role in transferring UTM information from one page to another within your sales funnel, ensuring this data is tracked until the checkout moment. Without the script, when clicking a button or link on your landing page, the tracking parameters (UTMs) **are lost** and the sale is not attributed correctly to the source campaign. ### How to install 1. Access the editor or settings of your landing page 2. Locate the option to insert **custom code** (usually called *Custom Code*, *Head*, *Embed*, *HTML* or *Scripts*) 3. Add the script below in the page's `` tag (or in the header code field) 4. Save and **publish** the changes ```js UTM forwarding script theme={null} ``` ### Tracked parameters The script automatically captures the following UTM parameters and forwards them to the page's links: * **src** - Traffic source * **sck** - Custom tracking key * **utm\_source** - Campaign source * **utm\_medium** - Marketing medium * **utm\_campaign** - Campaign name * **utm\_content** - Specific content * **utm\_term** - Search terms **Tip:** The script runs automatically every 500ms, updating all of the page's links (``) with the captured UTMs. This way, when clicking a button that leads to the checkout, the parameters are forwarded correctly. ### Things to watch out for in no-code builders * Make sure the button that leads to the checkout is a **real link** (``) pointing to the checkout URL. Buttons that only use click events without an `href` do not receive the UTMs automatically. * On platforms like **Lovable** and **Base44**, insert the script in the header code field (``) or in an HTML/Embed component on the page. * Don't forget to also install the [Nemu Pixel](/en/onboarding/configuring-pixel) on the same page for complete tracking. After installing and publishing, open your landing page with UTM parameters in the URL (e.g., `?utm_source=test&utm_campaign=test`) and click the checkout button. Check whether the UTMs appear in the checkout URL to confirm that the script is working.