diff --git a/content/en/_index.html b/content/en/_index.html
index 6458ef54..7e6dbc04 100644
--- a/content/en/_index.html
+++ b/content/en/_index.html
@@ -109,7 +109,7 @@ <h2>Documentation</h2>
           <img src="/images/icons/doc-arrow-icon.svg"  alt="" role="presentation"//>
         </button>
         <br/>
-        <p><b>Alternatively you can <a href="https://readium.firebaseapp.com/?epub=https%3A%2F%2Frawcdn.githack.com%2Fedrlab%2Fpublications%2Fmain%2Fthorium3-documentation%2Fsources%2Fen%2F&goto=epubcfi(/6/6!/4/2/2%5Bforewords%5D/1:0)">read online.</b></a></p>
+        <p><b>Alternatively you can <a href="https://thorium.edrlab.org/en/onlinedoc">read online.</b></a></p>
       </div>
       <div class="banner-element">
         <!-- <i class="fa-solid fa-book-open-reader"></i> -->
diff --git a/content/en/onlinedoc.html b/content/en/onlinedoc.html
new file mode 100644
index 00000000..e42a8160
--- /dev/null
+++ b/content/en/onlinedoc.html
@@ -0,0 +1,7 @@
+<head>
+<meta http-equiv="refresh" content="0; url=https://readium.firebaseapp.com/?epub=https%3A%2F%2Frawcdn.githack.com%2Fedrlab%2Fpublications%2Fmain%2Fthorium3-documentation%2Fsources%2Fen%2F&goto=epubcfi(/6/6!/4/2/2%5Bforewords%5D/1:0)" />
+</head>
+<body>
+<p><a href="https://readium.firebaseapp.com/?epub=https%3A%2F%2Frawcdn.githack.com%2Fedrlab%2Fpublications%2Fmain%2Fthorium3-documentation%2Fsources%2Fen%2F&goto=epubcfi(/6/6!/4/2/2%5Bforewords%5D/1:0)">Redirect</a></p>
+</body>
+
diff --git a/content/es/_index.html b/content/es/_index.html
index 79b47e99..5653954e 100644
--- a/content/es/_index.html
+++ b/content/es/_index.html
@@ -70,7 +70,7 @@ <h1> Thorium 3</h1>
 <img src="/images/icons/documentation-icon.svg" alt="" role="presentation"><h2>Documentación</h2></button>
 
 <br/>
-<p><b>También puede <a href="https://readium.firebaseapp.com/?epub=https%3A%2F%2Frawcdn.githack.com%2Fedrlab%2Fpublications%2Fmain%2Fthorium3-documentation%2Fsources%2Fen%2F&goto=epubcfi(/6/6!/4/2/2%5Bforewords%5D/1:0)">leerlo en línea (en inglés).</b></a></p>
+<p><b>También puede <a href="https://thorium.edrlab.org/en/onlinedoc">leerlo en línea (en inglés).</b></a></p>
 </div>
 <div class="banner-element">
 
diff --git a/content/fr/_index.html b/content/fr/_index.html
index 552febd7..bf5a07a5 100644
--- a/content/fr/_index.html
+++ b/content/fr/_index.html
@@ -98,7 +98,7 @@ <h1> Thorium 3</h1>
 <h2>Documentation</h2>
 </button>
 <br/>
-<p><b>Vous pouvez également  <a href="https://readium.firebaseapp.com/?epub=https%3A%2F%2Frawcdn.githack.com%2Fedrlab%2Fpublications%2Fmain%2Fthorium3-documentation%2Fsources%2Fen%2F&goto=epubcfi(/6/6!/4/2/2%5Bforewords%5D/1:0)">lire en ligne (en anglais).</b></a></p>
+<p><b>Vous pouvez également  <a href="https://thorium.edrlab.org/en/onlinedoc">lire en ligne (en anglais).</b></a></p>
  </div>
 <div class="banner-element">
 
