diff --git a/common.php b/common.php
index 61888bb..6c5ac28 100644
--- a/common.php
+++ b/common.php
@@ -42,7 +42,7 @@ header("Cross-Origin-Resource-Policy: same-origin");
 const LANGUAGES = [
 	'de' => ['name' => 'Deutsch', 'locale' => 'de_DE', 'flag' => '🇩🇪', 'show_in_menu' => true],
 	'en' => ['name' => 'English', 'locale' => 'en_GB', 'flag' => '🇬🇧', 'show_in_menu' => true],
-	'ru' => ['name' => 'Русский', 'locale' => 'ru_RU', 'flag' => '🇷🇺', 'show_in_menu' => false],
+	'ru' => ['name' => 'Русский', 'locale' => 'ru_RU', 'flag' => '🇷🇺', 'show_in_menu' => true],
 ];
 $language = 'en';
 $locale = 'en_GB';
@@ -54,6 +54,25 @@ if(isset($_REQUEST['lang']) && isset(LANGUAGES[$_REQUEST['lang']])){
 }elseif(isset($_COOKIE['language']) && isset(LANGUAGES[$_COOKIE['language']])){
 	$locale = LANGUAGES[$_COOKIE['language']]['locale'];
 	$language = $_COOKIE['language'];
+}elseif(!empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
+	$prefLocales = array_reduce(
+		explode(',', $_SERVER['HTTP_ACCEPT_LANGUAGE']),
+		function (array $res, string $el) {
+			list($l, $q) = array_merge(explode(';q=', $el), [1]);
+			$res[$l] = (float) $q;
+			return $res;
+		}, []);
+	arsort($prefLocales);
+	foreach($prefLocales as $l => $q){
+		$lang = locale_lookup(array_keys(LANGUAGES), $l);
+		if(!empty($lang)){
+			$locale = LANGUAGES[$lang]['locale'];
+			$language = $lang;
+			setcookie('language', $lang, ['expires' => 0, 'path' => '/', 'domain' => '', 'secure' => ($_SERVER['HTTPS'] ?? '' === 'on'), 'httponly' => true, 'samesite' => 'Strict']);
+			break;
+		}
+	}
+
 }
 putenv('LC_ALL='.$locale);
 setlocale(LC_ALL, $locale);
diff --git a/locale/ru_RU/LC_MESSAGES/main-website.mo b/locale/ru_RU/LC_MESSAGES/main-website.mo
index 9ec32b0..3fb3609 100644
Binary files a/locale/ru_RU/LC_MESSAGES/main-website.mo and b/locale/ru_RU/LC_MESSAGES/main-website.mo differ
diff --git a/locale/ru_RU/LC_MESSAGES/main-website.po b/locale/ru_RU/LC_MESSAGES/main-website.po
index 0e47a87..f34958b 100644
--- a/locale/ru_RU/LC_MESSAGES/main-website.po
+++ b/locale/ru_RU/LC_MESSAGES/main-website.po
@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2022-12-18 16:02+0100\n"
-"PO-Revision-Date: 2022-12-23 11:13+0100\n"
+"PO-Revision-Date: 2022-12-23 13:26+0100\n"
 "Last-Translator: \n"
 "Language-Team: \n"
 "Language: ru_RU\n"
@@ -21,7 +21,7 @@ msgstr ""
 
 #: index.php:6
 msgid "Daniel - Home"
-msgstr ""
+msgstr "Daniel - Домашняя страница"
 
 #: index.php:10
 msgid ""
@@ -31,7 +31,7 @@ msgstr ""
 
 #: index.php:14 common.php:81
 msgid "Home"
-msgstr ""
+msgstr "Домашняя страница"
 
 #: index.php:15
 msgid ""
@@ -319,15 +319,15 @@ msgstr ""
 
 #: contact.php:6
 msgid "Daniel - Contact"
-msgstr ""
+msgstr "Daniel - Контакт"
 
 #: contact.php:10
 msgid "Contact Daniel Winzen"
-msgstr ""
+msgstr "Контакт Daniel Winzen"
 
 #: contact.php:14 common.php:91
 msgid "Contact"
-msgstr ""
+msgstr "Контакт"
 
 #: contact.php:15
 msgid ""
@@ -658,7 +658,7 @@ msgstr "Вы можете <a href=\"contact.php\">написать мне</a>."
 
 #: common.php:82
 msgid "Chat"
-msgstr ""
+msgstr "Чат"
 
 #: common.php:83
 msgid "Online-Test"
@@ -1647,7 +1647,7 @@ msgstr ""
 
 #: chat/index.php:15
 msgid "After 9 years, I'm shutting down the chat for good."
-msgstr "Спустя девять лет, я вынужден закрыть свой чат навсегда"
+msgstr "Спустя девять лет, я вынужден закрыть свой чат навсегда."
 
 #: chat/index.php:16
 msgid ""