diff --git a/admin/themes/default/js/maintenance.js b/admin/themes/default/js/maintenance.js
index 107fd72e6..35ae16efb 100644
--- a/admin/themes/default/js/maintenance.js
+++ b/admin/themes/default/js/maintenance.js
@@ -1,4 +1,4 @@
-function displayResponse(domElem, values, mDivs,  mValues) {
+function displayResponse(domElem, values, mDivs,  mValues, lastTimeCalc) {
 
     for (let index = 0; index < domElem.length; index++) {
         domElem[index].html(values[index])
@@ -6,8 +6,9 @@ function displayResponse(domElem, values, mDivs,  mValues) {
 
     for (let index = 0; index < mDivs.length; index++) {
         mDivs[index].title = mValues[index] + "Mo";
-        
     }
+
+    $(".cache-lastCalculated-value").html(lastTimeCalc)
 }
 
 $(document).ready(function () {
@@ -16,7 +17,7 @@ $(document).ready(function () {
 
         return new Promise((res, rej) => {
             jQuery.ajax({
-                url: "ws.php?format=json&method=pwg.getInfos",
+                url: "ws.php?format=json&method=pwg.getCacheSize",
                 type: "POST",
                 data: {
                     param : "test_param",
@@ -29,13 +30,15 @@ $(document).ready(function () {
 
                         console.log(data);
 
+                        console.log(data.result.infos[1].value);
+
                         var domElemToRefresh = [$(".cache-size-value"), $(".multiple-pictures-sizes"), $(".multiple-compiledTemplate-sizes")];
-                        var domElemValues = [data.result.infos[12].value, 69, 42];
+                        var domElemValues = [data.result.infos[0].value, 69, 42];
 
                         var multipleSizes = $(".delete-check-container").children(".delete-size-check");
-                        var multipleSizesValues = [11, 10, 9, 8, 7, 6, 4, 3, 2, 1, 0]
+                        var multipleSizesValues = data.result.infos[1].value;
 
-                        displayResponse(domElemToRefresh , domElemValues, multipleSizes,  multipleSizesValues);
+                        displayResponse(domElemToRefresh , domElemValues, multipleSizes,  multipleSizesValues, data.result.infos[2].value);
 
                         $(".refresh-icon").addClass("icon-arrows-cw").removeClass("spin6");
 
diff --git a/include/ws_functions/pwg.php b/include/ws_functions/pwg.php
index 7d970d0b8..cee577187 100644
--- a/include/ws_functions/pwg.php
+++ b/include/ws_functions/pwg.php
@@ -194,6 +194,47 @@ function ws_getInfos($params, &$service)
   return array('infos' => new PwgNamedArray($output, 'item'));
 }
 
+/**
+ * API method
+ * Calculates and returns the size of the cache
+ * @param mixed[] $params
+ */
+function ws_getCacheSize($params, &$service)
+{
+  // Cache size
+  $infos['cache_size'] = 4444;
+
+
+  /* Multiples sizes */
+
+  $custom = 1;
+  $huge = 2;
+  $extra_large = 3;
+  $large = 4;
+  $medium = 5;
+  $small = 6;
+  $extra_small = 7;
+  $tiny = 8;
+  $thumbnail = 9;
+  $squarre = 10;
+  $all = $squarre + $thumbnail + $tiny + $extra_small + $small + $medium + $large + $extra_large + $huge + $custom;
+
+  $infos['msizes'] = [$all, $squarre, $thumbnail, $tiny, $extra_small, $small, $medium, $large, $extra_large, $huge, $custom];
+
+  $infos['last_time_calc'] = "now";
+
+  foreach ($infos as $name => $value)
+  {
+    $output[] = array(
+      'name' => $name,
+      'value' => $value,
+    );
+  }
+
+  return array('infos' => new PwgNamedArray($output, 'item'));
+}
+
+
 /**
  * API method
  * Adds images to the caddie
diff --git a/ws.php b/ws.php
index c6deb2533..430d83797 100644
--- a/ws.php
+++ b/ws.php
@@ -128,6 +128,15 @@ function ws_addDefaultMethods( $arr )
       array('admin_only'=>true)
     );
 
+  $service->addMethod(
+      'pwg.getCacheSize',
+      'ws_getCacheSize',
+      null,
+      'Returns general informations.',
+      $ws_functions_root . 'pwg.php',
+      array('admin_only'=>true)
+    );
+
   $service->addMethod(
     'pwg.activity.getList',
     'ws_getActivityList',