AI Chatbot Performance Impact on Website
Zero compromise on page speed, guaranteed
Vatdi is engineered to add zero measurable impact to your website performance. The chat widget loads asynchronously, is served from a global CDN, weighs under 40 KB gzipped, and defers initialization until after your page is fully interactive. Your Core Web Vitals stay green.
How It Works
Add the Embed Script
Paste the Vatdi script tag before </body>. The async and defer attributes are already included in the generated code.
Run a Lighthouse Audit
Test your page with and without Vatdi using Google Lighthouse. You will see no meaningful difference in performance scores.
Monitor Core Web Vitals
Track your Core Web Vitals in Google Search Console over time. Vatdi will not cause regressions in LCP, FID, or CLS.
Async Loading Architecture
The Vatdi script uses async and defer attributes. It downloads in parallel with your page resources and executes only after the DOM is ready. This means zero render blocking, zero impact on First Contentful Paint, and zero impact on Largest Contentful Paint.
CDN Delivery and Caching
The widget script and assets are served from a global CDN with edge nodes in 200+ locations. Aggressive cache headers ensure returning visitors load the widget from disk cache. Average time-to-first-byte for the script is under 20 milliseconds worldwide.
Minimal Resource Footprint
The complete Vatdi widget weighs under 40 KB gzipped including CSS, JavaScript, and icons. It makes zero blocking network requests during page load. API calls to fetch chatbot configuration happen lazily when the visitor first interacts with the widget.
Frequently Asked Questions
Under 40 KB gzipped total. This includes JavaScript, CSS, and embedded icons. No external font files or large assets are loaded.
No. The script loads with defer and does not block rendering. LCP is unaffected because the widget initializes after your content is painted.
No. The widget is positioned fixed and does not affect the document flow. It appears as an overlay and causes zero layout shift.
Yes. The script is served from a global CDN with 200+ edge locations. Cache headers ensure fast delivery and minimal bandwidth usage.
Yes. Use the JavaScript API to initialize the widget on demand, for example after a button click or scroll event, for even lighter initial page loads.
Add AI Chat with Zero Performance Cost
Under 40 KB, async loaded, CDN delivered. Your page speed stays perfect.