diff --git a/sql/V4.0.9.1__Seo_initialization.sql b/sql/V4.0.9.1__Seo_initialization.sql
new file mode 100644
index 0000000..63529e2
--- /dev/null
+++ b/sql/V4.0.9.1__Seo_initialization.sql
@@ -0,0 +1,53 @@
+
+CREATE TABLE `seo_backend` (
+  `id` mediumint(9) unsigned NOT NULL AUTO_INCREMENT,
+  `title` varchar(50) NOT NULL DEFAULT '',
+  `description` varchar(200) NOT NULL DEFAULT '',
+  `symbol` varchar(50) NOT NULL DEFAULT '',
+  `enable` tinyint(1) NOT NULL DEFAULT 1,
+  `home` varchar(100) NOT NULL DEFAULT '',
+  `meta` varchar(10240) NOT NULL DEFAULT '',
+  `engine` varchar(50) NOT NULL DEFAULT '',
+  `priority` int(11) NOT NULL DEFAULT 10,
+  `creation_dtime` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `modif_dtime` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `tenant` mediumint(9) unsigned NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`),
+  KEY `tenant_foreignkey_idx` (`tenant`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+
+CREATE TABLE `seo_contents` (
+  `id` mediumint(9) unsigned NOT NULL AUTO_INCREMENT,
+  `url` varchar(2000) NOT NULL DEFAULT '',
+  `url_id` varchar(150) NOT NULL DEFAULT '',
+  `title` varchar(250) NOT NULL DEFAULT 'no title',
+  `description` varchar(2048) NOT NULL DEFAULT 'auto created content',
+  `mime_type` varchar(64) NOT NULL DEFAULT 'application/octet-stream',
+  `media_type` varchar(64) NOT NULL DEFAULT 'application/octet-stream',
+  `file_path` varchar(250) NOT NULL DEFAULT '',
+  `file_name` varchar(250) NOT NULL DEFAULT 'unknown',
+  `file_size` int(11) NOT NULL DEFAULT 0,
+  `downloads` int(11) NOT NULL DEFAULT 0,
+  `creation_dtime` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `modif_dtime` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `expire_dtime` datetime DEFAULT '0000-00-00 00:00:00',
+  `tenant` mediumint(9) unsigned NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `url_id_unique_idx` (`tenant`,`url_id`),
+  KEY `tenant_foreignkey_idx` (`tenant`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+
+
+CREATE TABLE `seo_sitemap_link` (
+  `id` mediumint(9) unsigned NOT NULL AUTO_INCREMENT,
+  `title` varchar(50) NOT NULL DEFAULT '',
+  `description` varchar(200) NOT NULL DEFAULT '',
+  `loc` varchar(2048) NOT NULL DEFAULT '',
+  `lastmod` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `changefreq` varchar(16) NOT NULL DEFAULT '',
+  `priority` decimal(32,8) NOT NULL DEFAULT 0.00000000,
+  `tenant` mediumint(9) unsigned NOT NULL DEFAULT 0,
+  PRIMARY KEY (`id`),
+  KEY `tenant_foreignkey_idx` (`tenant`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8;