diff --git a/docker/Dockerfile b/docker/Dockerfile
index bae2f76..bbea42c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -5,6 +5,8 @@ RUN apk add --no-cache bash socat file ffmpeg
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/bin --filename=composer 
 WORKDIR /app/public
 
+RUN install-php-extensions redis
+
 # Add php.ini
 ADD configs/php.ini /usr/local/etc/php/php.ini
 
diff --git a/docker/rootfs/start.sh b/docker/rootfs/start.sh
index cb7ee09..fdc4841 100644
--- a/docker/rootfs/start.sh
+++ b/docker/rootfs/start.sh
@@ -25,6 +25,7 @@ _buildConfig() {
     echo "<?php"
     echo "define('URL', '${URL:-}');"
     echo "define('TITLE', '${TITLE:-PictShare}');"
+    echo "define('REDIS_CACHING', '${REDIS_CACHING:-true}');"
     echo "define('ALLOWED_SUBNET', '${ALLOWED_SUBNET:-}');"
     echo "define('CONTENTCONTROLLERS', '${CONTENTCONTROLLERS:-}');"
     echo "define('MASTER_DELETE_CODE', '${MASTER_DELETE_CODE:-}');"
@@ -56,6 +57,9 @@ _buildConfig() {
     echo "define('ALLOWED_DOMAINS', '${ALLOWED_DOMAINS:-}');"
     echo "define('SPLIT_DATA_DIR', ${SPLIT_DATA_DIR:-false});"
     echo "define('LOG_VIEWS', ${LOG_VIEWS:-false});"
+    echo "define('REDIS_CACHING', ${REDIS_CACHING:-true});"
+    echo "define('REDIS_SERVER', '${REDIS_SERVER:-localhost}');"
+    echo "define('REDIS_PORT', ${REDIS_PORT:-6379});"
 }
 
 
diff --git a/rtfm/CONFIG.md b/rtfm/CONFIG.md
index 8dd7578..c12f305 100644
--- a/rtfm/CONFIG.md
+++ b/rtfm/CONFIG.md
@@ -24,6 +24,8 @@ In this file you can set the following options. For a simple working example con
 | UPLOAD_QUOTA (NOT IMPLEMENTED)            | int     | Size in MB. If set, will only allow uploads if combined size of uploads on Server is smaller than this value. Does not account for ALT_FOLDER data and resized versions of original uploads won't be added to calculation |
 | MAX_RESIZED_IMAGES (NOT IMPLEMENTED )      | string  | If set, limits count of resized images/videos per file on server |
 | LOG_VIEWS | bool | If set, will log all views into the ./logs/app.log. Pretty resource heavy, only use for debugging purposes |
+| REDIS_CACHING | bool | true by default, Used to cache URL to file mapping. If set to false, PictShare will not use Redis for caching. This is not recommended as it will slow down the server significantly |
+| REDIS_SERVER | string | IP address of the Redis server. If set, PictShare will use this server for caching. If not set, PictShare will use the default Redis server on localhost |
 
 
 # Content controllers
diff --git a/web/index.php b/web/index.php
index dc84638..88280cf 100644
--- a/web/index.php
+++ b/web/index.php
@@ -17,7 +17,14 @@ loadAllContentControllers();
 
 //load external things if existing
 if(file_exists(ROOT.'/src/lib/vendor/autoload.php'))
-	require ROOT.'/src/lib/vendor/autoload.php';
+	require_once(ROOT.'/src/lib/vendor/autoload.php');
+
+// redis
+if(!defined('REDIS_CACHING') || REDIS_CACHING == true)
+{
+	$GLOBALS['redis'] = new Redis();
+	$GLOBALS['redis']->connect((!defined('REDIS_SERVER'))?'localhost':REDIS_SERVER, (!defined('REDIS_PORT'))?6379:REDIS_PORT);
+}
 
 
 //parse the URL to an array and filter it