diff --git a/Classes/Utility/SitemapUtility.php b/Classes/Utility/SitemapUtility.php
index ee55db4..01798b4 100755
--- a/Classes/Utility/SitemapUtility.php
+++ b/Classes/Utility/SitemapUtility.php
@@ -56,8 +56,8 @@ public static function index($pageData) {
             return;
         }
 
-		// Trim url
-		$pageData['page_url'] = trim($pageData['page_url']);
+        // Trim url
+        $pageData['page_url'] = trim($pageData['page_url']);
 
         // calc page hash
         $pageData['page_hash'] = md5($pageData['page_url']);
@@ -88,7 +88,7 @@ public static function index($pageData) {
 
             // $pageData is already quoted
 
-			// TODO: INSERT INTO ... ON DUPLICATE KEY UPDATE?
+            // TODO: INSERT INTO ... ON DUPLICATE KEY UPDATE?
 
             $query = 'SELECT uid
                         FROM tx_metaseo_sitemap
@@ -106,7 +106,8 @@ public static function index($pageData) {
                                  page_url              = ' . $pageData['page_url'] . ',
                                  page_depth            = ' . $pageData['page_depth'] . ',
                                  page_change_frequency = ' . $pageData['page_change_frequency'] . ',
-                                 page_type             = ' . $pageData['page_type'] . '
+                                 page_type             = ' . $pageData['page_type'] . ',
+                                 expire                = ' . $pageData['expire'] . '
                            WHERE uid = ' . (int)$sitemapUid;
                 DatabaseUtility::exec($query);
             } else {
@@ -136,14 +137,20 @@ public static function expire() {
             $expireDays = 60;
         }
 
-		// No negative days allowed
-		$expireDays = abs($expireDays);
+        // No negative days allowed
+        $expireDays = abs($expireDays);
 
+        // tstamp for too old indexed sitemap url
         $tstamp = time() - $expireDays * 24 * 60 * 60;
 
+        // special expire time
+        $expire = time();
+
         $query = 'DELETE FROM tx_metaseo_sitemap
-                        WHERE tstamp <= ' . (int)$tstamp . '
-                          AND is_blacklisted = 0';
+                        WHERE is_blacklisted = 0
+                          AND ( tstamp <= ' . (int)$tstamp . '
+                             OR expire <= ' . (int)$expire . '
+                          ) ';
         DatabaseUtility::exec($query);
 
         // #####################
diff --git a/ext_tables.sql b/ext_tables.sql
index d205cc6..de85ab1 100644
--- a/ext_tables.sql
+++ b/ext_tables.sql
@@ -2,71 +2,73 @@
 # Table structure for table 'pages'
 #
 CREATE TABLE pages (
-	tx_metaseo_pagetitle varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_rel varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_prefix varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_suffix varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_is_exclude int(1) DEFAULT '0' NOT NULL,
-	tx_metaseo_inheritance int(11) DEFAULT '0' NOT NULL,
-	tx_metaseo_canonicalurl varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_priority int(11) DEFAULT '0' NOT NULL,
-	tx_metaseo_change_frequency int(4) DEFAULT '0' NOT NULL,
-	tx_metaseo_geo_lat varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_geo_long varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_geo_place varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_geo_region varchar(255) DEFAULT '' NOT NULL
+    tx_metaseo_pagetitle varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_rel varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_prefix varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_suffix varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_is_exclude int(1) DEFAULT '0' NOT NULL,
+    tx_metaseo_inheritance int(11) DEFAULT '0' NOT NULL,
+    tx_metaseo_canonicalurl varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_priority int(11) DEFAULT '0' NOT NULL,
+    tx_metaseo_change_frequency int(4) DEFAULT '0' NOT NULL,
+    tx_metaseo_geo_lat varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_geo_long varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_geo_place varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_geo_region varchar(255) DEFAULT '' NOT NULL
 );
 
 #
 # Table structure for table 'pages_language_overlay'
 #
 CREATE TABLE pages_language_overlay (
-	tx_metaseo_pagetitle varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_rel varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_prefix varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_pagetitle_suffix varchar(255) DEFAULT '' NOT NULL,
-	tx_metaseo_canonicalurl varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_rel varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_prefix varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_pagetitle_suffix varchar(255) DEFAULT '' NOT NULL,
+    tx_metaseo_canonicalurl varchar(255) DEFAULT '' NOT NULL
 );
 
 #
 # Table structure for table 'tx_metaseo_cache'
 #
 CREATE TABLE tx_metaseo_cache (
-	uid int(11) NOT NULL auto_increment,
-	tstamp int(11) DEFAULT '0' NOT NULL,
-	page_uid int(11) DEFAULT '0' NOT NULL,
-	cache_section varchar(10) DEFAULT '' NOT NULL,
-	cache_identifier varchar(10) DEFAULT '' NOT NULL,
-	cache_content blob,
-	PRIMARY KEY (uid),
-	UNIQUE cache_key (page_uid,cache_section,cache_identifier),
-	KEY cache_sect_id (cache_section,cache_identifier)
+    uid int(11) NOT NULL auto_increment,
+    tstamp int(11) DEFAULT '0' NOT NULL,
+    page_uid int(11) DEFAULT '0' NOT NULL,
+    cache_section varchar(10) DEFAULT '' NOT NULL,
+    cache_identifier varchar(10) DEFAULT '' NOT NULL,
+    cache_content blob,
+    PRIMARY KEY (uid),
+    UNIQUE cache_key (page_uid,cache_section,cache_identifier),
+    KEY cache_sect_id (cache_section,cache_identifier)
 ) ENGINE=InnoDB;
 
 #
 # Table structure for table 'tx_metaseo_sitemap'
 #
 CREATE TABLE tx_metaseo_sitemap (
-	uid int(11) NOT NULL auto_increment,
-	tstamp int(11) DEFAULT '0' NOT NULL,
-	crdate int(11) DEFAULT '0' NOT NULL,
-	page_rootpid int(11) DEFAULT '0' NOT NULL,
-	page_uid int(11) DEFAULT '0' NOT NULL,
-	page_language int(11) DEFAULT '0' NOT NULL,
-	page_url varchar(500) DEFAULT '' NOT NULL,
-	page_hash varchar(32) DEFAULT '' NOT NULL,
-	page_depth int(4) DEFAULT '0' NOT NULL,
-	page_change_frequency int(4) DEFAULT '0' NOT NULL,
-	page_type int(11) DEFAULT '0' NOT NULL,
-
-	is_blacklisted int(1) DEFAULT '0' NOT NULL,
-
-	PRIMARY KEY (uid),
-
-	UNIQUE page_identification (page_uid,page_language,page_hash),
-	KEY language_path (page_rootpid,page_language,page_depth),
-	KEY page_depth (page_depth),
-	KEY blacklisted (is_blacklisted)
+    uid int(11) NOT NULL auto_increment,
+    tstamp int(11) DEFAULT '0' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    expire int(11) DEFAULT '0' NOT NULL,
+
+    page_rootpid int(11) DEFAULT '0' NOT NULL,
+    page_uid int(11) DEFAULT '0' NOT NULL,
+    page_language int(11) DEFAULT '0' NOT NULL,
+    page_url varchar(500) DEFAULT '' NOT NULL,
+    page_hash varchar(32) DEFAULT '' NOT NULL,
+    page_depth int(4) DEFAULT '0' NOT NULL,
+    page_change_frequency int(4) DEFAULT '0' NOT NULL,
+    page_type int(11) DEFAULT '0' NOT NULL,
+
+    is_blacklisted int(1) DEFAULT '0' NOT NULL,
+
+    PRIMARY KEY (uid),
+
+    UNIQUE page_identification (page_uid,page_language,page_hash),
+    KEY language_path (page_rootpid,page_language,page_depth),
+    KEY page_depth (page_depth),
+    KEY blacklisted (is_blacklisted)
 ) ENGINE=InnoDB;
 
 
@@ -74,52 +76,52 @@ CREATE TABLE tx_metaseo_sitemap (
 # Table structure for table 'tx_metaseo_setting_root'
 #
 CREATE TABLE tx_metaseo_setting_root (
-	uid int(11) NOT NULL auto_increment,
-	pid int(11) DEFAULT '0' NOT NULL,
-	tstamp int(11) DEFAULT '0' NOT NULL,
-	crdate int(11) DEFAULT '0' NOT NULL,
-	cruser_id int(11) DEFAULT '0' NOT NULL,
-
-	is_sitemap int(1) DEFAULT '1' NOT NULL,
-	is_sitemap_page_indexer int(1) DEFAULT '1' NOT NULL,
-	is_sitemap_typolink_indexer int(1) DEFAULT '1' NOT NULL,
-	is_sitemap_language_lock int(1) DEFAULT '0' NOT NULL,
-	sitemap_page_limit int(11) DEFAULT '0' NOT NULL,
-	sitemap_priorty float DEFAULT '1' NOT NULL,
-	sitemap_priorty_depth_multiplier float DEFAULT '1' NOT NULL,
-	sitemap_priorty_depth_modificator float DEFAULT '1' NOT NULL,
-
-	is_robotstxt int(1) DEFAULT '1' NOT NULL,
-	is_robotstxt_sitemap_static int(1) DEFAULT '0' NOT NULL,
-	robotstxt text,
-	robotstxt_additional text,
-
-	deleted int(1) DEFAULT '0' NOT NULL,
-	PRIMARY KEY (uid),
-  KEY pid (pid),
-  KEY deleted (deleted)
+    uid int(11) NOT NULL auto_increment,
+    pid int(11) DEFAULT '0' NOT NULL,
+    tstamp int(11) DEFAULT '0' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    cruser_id int(11) DEFAULT '0' NOT NULL,
+
+    is_sitemap int(1) DEFAULT '1' NOT NULL,
+    is_sitemap_page_indexer int(1) DEFAULT '1' NOT NULL,
+    is_sitemap_typolink_indexer int(1) DEFAULT '1' NOT NULL,
+    is_sitemap_language_lock int(1) DEFAULT '0' NOT NULL,
+    sitemap_page_limit int(11) DEFAULT '0' NOT NULL,
+    sitemap_priorty float DEFAULT '1' NOT NULL,
+    sitemap_priorty_depth_multiplier float DEFAULT '1' NOT NULL,
+    sitemap_priorty_depth_modificator float DEFAULT '1' NOT NULL,
+
+    is_robotstxt int(1) DEFAULT '1' NOT NULL,
+    is_robotstxt_sitemap_static int(1) DEFAULT '0' NOT NULL,
+    robotstxt text,
+    robotstxt_additional text,
+
+    deleted int(1) DEFAULT '0' NOT NULL,
+    PRIMARY KEY (uid),
+    KEY pid (pid),
+    KEY deleted (deleted)
 ) ENGINE=InnoDB;
 
 #
 # Table structure for table 'tx_metaseo_tag'
 #
 CREATE TABLE tx_metaseo_metatag (
-  uid int(11) NOT NULL auto_increment,
-  pid int(11) DEFAULT '0' NOT NULL,
-  tstamp int(11) DEFAULT '0' NOT NULL,
-  crdate int(11) DEFAULT '0' NOT NULL,
-  cruser_id int(11) DEFAULT '0' NOT NULL,
-
-  sys_language_uid int(11) DEFAULT '0' NOT NULL,
-
-  tag_name varchar(50) DEFAULT '' NOT NULL,
-  tag_subname varchar(50) DEFAULT '' NOT NULL,
-  tag_value text,
-  tag_group int(11) DEFAULT '0' NOT NULL,
-
-  PRIMARY KEY (uid),
-  UNIQUE metatag (pid,sys_language_uid,tag_name,tag_group,tag_subname),
-  KEY tag_group (tag_group),
-  KEY sys_language_uid (sys_language_uid),
-  KEY pid (pid)
+    uid int(11) NOT NULL auto_increment,
+    pid int(11) DEFAULT '0' NOT NULL,
+    tstamp int(11) DEFAULT '0' NOT NULL,
+    crdate int(11) DEFAULT '0' NOT NULL,
+    cruser_id int(11) DEFAULT '0' NOT NULL,
+
+    sys_language_uid int(11) DEFAULT '0' NOT NULL,
+
+    tag_name varchar(50) DEFAULT '' NOT NULL,
+    tag_subname varchar(50) DEFAULT '' NOT NULL,
+    tag_value text,
+    tag_group int(11) DEFAULT '0' NOT NULL,
+
+    PRIMARY KEY (uid),
+    UNIQUE metatag (pid,sys_language_uid,tag_name,tag_group,tag_subname),
+    KEY tag_group (tag_group),
+    KEY sys_language_uid (sys_language_uid),
+    KEY pid (pid)
 ) ENGINE=InnoDB;