diff --git a/src/DGAttribution/src/DGAttribution.js b/src/DGAttribution/src/DGAttribution.js
index aef45652..5d024dc8 100644
--- a/src/DGAttribution/src/DGAttribution.js
+++ b/src/DGAttribution/src/DGAttribution.js
@@ -207,7 +207,7 @@ DG.Control.Attribution.include({
         return {
             'logotype': isHideButton,
             'work_on': this.t('work_on'),
-            'has_no_key': this._isDefaultKey ? null : this.t('has_no_key'),
+            'has_no_key': this._isDefaultKey ? this.t('has_no_key') : null,
             'lang': lang,
             'copyright_apilink': this._getLink('copyright_apilink'),
             'copyright_license': this._getLink('copyright_license'),
diff --git a/src/DGCustomization/skin/basic/less/dg-customization.less b/src/DGCustomization/skin/basic/less/dg-customization.less
index 0fc02ea0..be9f7b69 100755
--- a/src/DGCustomization/skin/basic/less/dg-customization.less
+++ b/src/DGCustomization/skin/basic/less/dg-customization.less
@@ -100,5 +100,7 @@
     font-family: Helvetica, Arial, sans-serif;
     font-weight: Bold;
     pointer-events: none;
+    box-sizing: border-box;
+    padding: 0 20px;
 }
 
diff --git a/src/DGCustomization/src/DGMap.ApiKeyValidator.js b/src/DGCustomization/src/DGMap.ApiKeyValidator.js
index da35f198..ebe4db17 100644
--- a/src/DGCustomization/src/DGMap.ApiKeyValidator.js
+++ b/src/DGCustomization/src/DGMap.ApiKeyValidator.js
@@ -1,5 +1,5 @@
 DG.ApiKeyValidator = DG.Class.extend({
-    initialize: function(apiKey) {
+    initialize: function(apiKey, mapContainer) {
         this.apiKey = apiKey;
         this.endpoint = DG.config.keyServer + apiKey + DG.config.keyServices;
         this.isLoading = false;
@@ -8,6 +8,8 @@ DG.ApiKeyValidator = DG.Class.extend({
         this.request = null;
         this.MAX_ATTEMPTS = 4;
         this.keyRequestInterval = [0, 2, 2, 2];
+        this.isErrorWasShown = false;
+        this.mapContainer = mapContainer;
     },
 
     validate: function(callback) {
@@ -20,6 +22,14 @@ DG.ApiKeyValidator = DG.Class.extend({
         this._makeAttempt(callback);
     },
 
+    validateKeyResponse: function() {
+        this.validate(function(response) {
+            if (!response || this._isResponseInvalid(response)) {
+                this._showError();
+            }
+        }.bind(this));
+    },
+
     _makeAttempt: function(callback) {
         if (this.attempts > 0) {
             this.lastTimeout = window.setTimeout(function() {
@@ -31,31 +41,39 @@ DG.ApiKeyValidator = DG.Class.extend({
         }
     },
 
-    _executeRequest: function(callback) {
-        var xhr = new XMLHttpRequest();
-        xhr.open('GET', this.endpoint, true);
+    _isResponseInvalid: function(response) {
+        return (
+            response.meta.code === 400 ||
+            response.meta.code === 404 ||
+            response.result &&
+            (!response.result.service.is_active ||
+                !response.result.is_active ||
+                response.result.service.status.code !== 'ok'
+            )
+        );
+    },
 
-        xhr.onreadystatechange = function() {
-            if (xhr.readyState === 4) {
-                if (xhr.status === 200) {
-                    try {
-                        var response = JSON.parse(xhr.responseText);
-                        this.isLoading = false;
-                        callback(response);
-                    } catch (e) {
-                        this._handleError(callback, xhr.status);
-                    }
-                } else {
-                    this._handleError(callback, xhr.status);
-                }
-            }
-        }.bind(this);
+    _showError: function() {
 
-        xhr.onerror = function() {
-            this._handleError(callback, xhr.status);
-        }.bind(this);
+        if (!this.isErrorWasShown && this.mapContainer) {
+            var errorMessage = DG.DomUtil.create('div', 'dg-error-message');
+            errorMessage.innerHTML = 'Your RasterJS API key is invalid. Please contact api@2gis.com to get RasterJS API key.';
+            this.mapContainer.appendChild(errorMessage);
+            this.isErrorWasShown = true;
+        }
+    },
 
-        xhr.send();
+    _executeRequest: function(callback) {
+        this.request = DG.ajax(this.endpoint, {
+            type: 'GET',
+            success: function(response) {
+                this.isLoading = false;
+                callback(response);
+            }.bind(this),
+            error: function(xhr) {
+                this._handleError(callback, xhr.status);
+            }.bind(this)
+        });
     },
 
     _handleError: function(callback, status) {
diff --git a/src/DGCustomization/src/DGMap.BaseLayer.js b/src/DGCustomization/src/DGMap.BaseLayer.js
index fc489230..99285ab3 100644
--- a/src/DGCustomization/src/DGMap.BaseLayer.js
+++ b/src/DGCustomization/src/DGMap.BaseLayer.js
@@ -16,30 +16,9 @@ DG.Map.addInitHook(function() {
     });
 
     var apiKey = this.options.key || DG.config.key;
-
-    this.isErrorWasShown = false;
-    function handleTileError() {
-        var errorMessage = DG.DomUtil.create('div', 'dg-error-message');
-        if (!this.isErrorWasShown) {
-            errorMessage.innerHTML = 'Your RasterJS API key is invalid. Please contact api@2gis.com to get RasterJS API key.';
-
-            var mapContainer = this.map.getContainer();
-
-            if (mapContainer) {
-                mapContainer.appendChild(errorMessage);
-            }
-
-            this.isErrorWasShown = true;
-        }
-    }
-
-    var validator = new DG.ApiKeyValidator(apiKey);
-    validator.validate(function(response) {
-
-        if (response.meta.code === 400 || response.meta.code === 404 || response.result && (!response.result.service.is_active || !response.result.is_active || response.result.service.status.code !== 'ok')) {
-            handleTileError.call(this);
-        }
-    });
+    var mapContainer = this.getContainer();
+    var validator = new DG.ApiKeyValidator(apiKey, mapContainer);
+    validator.validateKeyResponse();
 
     var tileUrl = DG.config.secureProtocol + (DG.Browser.retina ? DG.config.retinaTileServer : DG.config.tileServer);
     var arabicTileUrl = DG.config.secureProtocol +