diff --git a/Readme.md b/Readme.md
index fa4a859..8ad24ef 100644
--- a/Readme.md
+++ b/Readme.md
@@ -19,7 +19,7 @@ Primer:
 <head>
     ...
     <link rel="stylesheet" href="styles.css" />
-    <script>const besUrl = 'http://localhost:225/api/v2/check';</script>
+    <script>const besUrl = 'http://localhost:225/api/v2';</script>
     <script src="service.js"></script>
 </head>
 ```
diff --git a/samples/ckeditor.html b/samples/ckeditor.html
index be4672c..026d43f 100644
--- a/samples/ckeditor.html
+++ b/samples/ckeditor.html
@@ -5,7 +5,7 @@
     <title>CKEditor 5 Example</title>
     <link rel="stylesheet" href="../styles.css" />
     <script src="https://cdn.ckeditor.com/ckeditor5/41.1.0/classic/ckeditor.js"></script>
-    <script>const besUrl = 'http://localhost:225/api/v2/check';</script>
+    <script>const besUrl = 'http://localhost:225/api/v2';</script>
     <script src="../service.js"></script>
   </head>
   <body>
diff --git a/samples/index.html b/samples/index.html
index dff40e4..b6f96c4 100644
--- a/samples/index.html
+++ b/samples/index.html
@@ -5,7 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>BesService Example</title>
     <link rel="stylesheet" href="../styles.css" />
-    <script>const besUrl = 'http://localhost:225/api/v2/check';</script>
+    <script>const besUrl = 'http://localhost:225/api/v2';</script>
     <script src="../service.js"></script>
   </head>
   <body>
diff --git a/service.js b/service.js
index 0b2021b..8d84219 100644
--- a/service.js
+++ b/service.js
@@ -103,7 +103,7 @@ class BesService {
               language: node.lang ? node.lang : 'sl',
               level: 'picky'
             }
-            const request = new Request(besUrl, {
+            const request = new Request(besUrl + '/check', {
               method: 'POST',
               headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
               body: new URLSearchParams(requestData)
