> ## Documentation Index > Fetch the complete documentation index at: https://docs.thetinybell.com/llms.txt > Use this file to discover all available pages before exploring further. # Custom website > Install TinyBell on any HTML website or custom CMS. ## Basic installation Add the pixel code inside the `` tag of your website: ```html theme={null} ``` That's it. The pixel handles everything else automatically. ## Single-page applications (SPA) If your website is built with React, Vue, Next.js, or another SPA framework, add the pixel to your main HTML template (usually `index.html` or `_document.js`). The pixel detects page navigation automatically and re-evaluates notification triggers on each route change. ## Multiple domains If your hotel group has multiple websites, create a separate property in TinyBell for each domain. Each property gets its own pixel code. Do not use the same pixel code on different domains. ## Content Security Policy (CSP) If your website uses a Content Security Policy, add TinyBell's domain to the `script-src` directive: ``` Content-Security-Policy: script-src 'self' https://thetinybell.com; ``` ## Subresource Integrity (SRI) The pixel URL changes dynamically based on your notification configuration, so SRI hashes are not supported. Use CSP for security instead.