> ## Documentation Index > Fetch the complete documentation index at: https://docs.chatref.ai/llms.txt > Use this file to discover all available pages before exploring further. # Allowed Domains > Lock your widget so it only runs on your own sites by keeping an allow-list of domains. **Allowed Domains** is an allow-list of the sites where your widget is allowed to run. It stops someone from copying your script and loading your bot on a site that isn't yours. If the list is **empty**, the widget works on **any** site. The moment you add even one domain, the widget runs **only** on the domains you list. ## How matching works * **Subdomains are included automatically.** Adding `example.com` also covers `shop.example.com` and `help.example.com`. * **Wildcards** work too. Use `*.example.com` to match every subdomain. * If a site **isn't** on the list, the widget won't load there at all. For a travel agency, adding `travelco.com` covers the main site plus `book.travelco.com` – one entry, every subdomain. ## Add a domain In your agent's dashboard, open the **Deploy** page and find the **Allowed Domains** section. Type your domain – for example `example.com` or `*.example.com` – and add it to the list. Repeat for each site that should run the widget. Save the list. From now on the widget loads only on the domains you added. Before you embed the widget on a new domain, add that domain here **first**. If it isn't on the list, the widget will be blocked and won't load on that site. ## Next steps Paste your script tag and put your bot live on your site. Show different agents on different pages from a single workspace script.