diff --git a/inc/html.php b/inc/html.php
index 60c7a37..9f0c422 100644
--- a/inc/html.php
+++ b/inc/html.php
@@ -17,8 +17,11 @@ EOF;
 		<link rel="stylesheet" type="text/css" href="css/futaba.css" title="Futaba">
 		<link rel="alternate stylesheet" type="text/css" href="css/burichan.css" title="Burichan">
 		<meta http-equiv="content-type" content="text/html;charset=UTF-8">
-		<meta http-equiv="pragma" content="no-cache">
+		<meta http-equiv="cache-control" content="max-age=0">
+		<meta http-equiv="cache-control" content="no-cache">
 		<meta http-equiv="expires" content="0">
+		<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT">
+		<meta http-equiv="pragma" content="no-cache">
 	</head>
 EOF;
 	return $return;