diff --git a/templates/404.html b/templates/404.html
index b83be13..014df47 100644
--- a/templates/404.html
+++ b/templates/404.html
@@ -32,6 +32,7 @@
   })();
 </script>
 <!-- End Matomo Code -->
+<script async src="https://umami.woodburn.au/script.js" data-website-id="45d91688-692c-40de-be01-6779034dcdd8"></script>
 </head>
 
 <body id="page-top" style="background: rgb(0,0,0);">
diff --git a/templates/dash.html b/templates/dash.html
index cfeac3a..4252594 100644
--- a/templates/dash.html
+++ b/templates/dash.html
@@ -32,6 +32,7 @@
   })();
 </script>
 <!-- End Matomo Code -->
+<script async src="https://umami.woodburn.au/script.js" data-website-id="45d91688-692c-40de-be01-6779034dcdd8"></script>
 </head>
 
 <body id="page-top" style="background: rgb(0,0,0);">
@@ -111,8 +112,8 @@
                                 </div>
                                 <div class="card-body">
                                     <form class="text-center" method="post">
-                                        <div class="text-end"><label class="form-label" style="display: inline-block;">https://{{host}}/</label><input class="form-control form-control-sm" type="text" style="margin-top: 10px;display: inline-block;width: auto;" name="link" required=""></div>
-                                        <div class="text-end"><label class="form-label" style="display: inline-block;margin-right: 20px;">Links to</label><input class="form-control form-control-sm" type="text" style="margin-top: 10px;display: inline-block;width: auto;" placeholder="URL" name="url" required=""></div><input class="btn btn-primary" type="submit" style="margin: 10px;" value="Create">
+                                        <div class="text-end"><label class="form-label" style="display: inline-block;">https://{{host}}/</label><input class="form-control form-control-sm" type="text" style="margin-top: 10px;display: inline-block;width: auto;" name="link" required="" pattern="^[a-zA-Z0-9]+$"><span style="display: block;">Can only contain a-z 0-9</span></div>
+                                        <div class="text-end" style="margin-top: 20px;"><label class="form-label" style="display: inline-block;margin-right: 20px;">Links to</label><input class="form-control form-control-sm" type="text" style="margin-top: 10px;display: inline-block;width: auto;" placeholder="URL" name="url" required=""></div><input class="btn btn-primary" type="submit" style="margin: 10px;" value="Create">
                                     </form>
                                 </div>
                             </div>
diff --git a/templates/index.html b/templates/index.html
index 6b13e93..0702686 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -40,6 +40,7 @@
   })();
 </script>
 <!-- End Matomo Code -->
+<script async src="https://umami.woodburn.au/script.js" data-website-id="45d91688-692c-40de-be01-6779034dcdd8"></script>
 </head>
 
 <body id="page-top" style="background: rgb(0,0,0);"><script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
