diff --git a/dog-food-calculator-widget.js b/dog-food-calculator-widget.js
index 0c4090e..e30b6ca 100644
--- a/dog-food-calculator-widget.js
+++ b/dog-food-calculator-widget.js
@@ -1546,13 +1546,16 @@
             const iframeCode = document.querySelector('#iframeCode');
             
             if (modal && widgetCode && iframeCode) {
-                const baseUrl = window.location.origin;
+                // Extract domain from current URL to build embed subdomain
+                const hostname = window.location.hostname;
+                const protocol = window.location.protocol;
+                const embedUrl = `${protocol}//embed.${hostname}`;
                 const theme = this.theme !== 'system' ? ` data-theme="${this.theme}"` : '';
                 
-                widgetCode.textContent = `<script src="embed.${baseUrl}/dog-calculator-widget.js"></script>
+                widgetCode.textContent = `<script src="${embedUrl}/dog-calculator-widget.js"></script>
 <div id="dog-calorie-calculator"${theme}></div>`;
                 
-                iframeCode.textContent = `<iframe src="embed.${baseUrl}/iframe.html${this.theme !== 'system' ? '?theme=' + this.theme : ''}" 
+                iframeCode.textContent = `<iframe src="${embedUrl}/iframe.html${this.theme !== 'system' ? '?theme=' + this.theme : ''}" 
         width="100%" height="600" 
         frameborder="0" 
         title="Dog Calorie Calculator">