diff --git a/src/config/parser.rs b/src/config/parser.rs
index 6d84374..fb9f8b1 100644
--- a/src/config/parser.rs
+++ b/src/config/parser.rs
@@ -17,9 +17,10 @@ pub struct Config {
     pub binding_ip: String,
     /// It stores the theming options for the website.
     pub style: Style,
+    #[cfg(feature = "redis-cache")]
     /// It stores the redis connection url address on which the redis
     /// client should connect.
-    pub redis_url: Option<String>,
+    pub redis_url: String,
     /// It stores the option to whether enable or disable production use.
     pub aggregator: AggregatorConfig,
     /// It stores the option to whether enable or disable logs.
@@ -99,7 +100,8 @@ impl Config {
                 globals.get::<_, String>("theme")?,
                 globals.get::<_, String>("colorscheme")?,
             ),
-            redis_url: globals.get::<_, String>("redis_url").ok(),
+            #[cfg(feature = "redis-cache")]
+            redis_url: globals.get::<_, String>("redis_url")?,
             aggregator: AggregatorConfig {
                 random_delay: globals.get::<_, bool>("production_use")?,
             },
diff --git a/src/models/server_models.rs b/src/models/server_models.rs
index 3da6717..c9ed350 100644
--- a/src/models/server_models.rs
+++ b/src/models/server_models.rs
@@ -11,16 +11,19 @@ pub struct SearchParams {
     /// It stores the search parameter `page` (or pageno in simple words)
     /// of the search url.
     pub page: Option<u32>,
+    /// It stores the search parameter `safesearch` (or safe search level in simple words) of the
+    /// search url.
+    pub safesearch: Option<u8>,
 }
 
 /// A named struct which is used to deserialize the cookies fetched from the client side.
 #[allow(dead_code)]
 #[derive(Deserialize)]
-pub struct Cookie {
+pub struct Cookie<'a> {
     /// It stores the theme name used in the website.
-    pub theme: String,
+    pub theme: &'a str,
     /// It stores the colorscheme name used for the website theme.
-    pub colorscheme: String,
+    pub colorscheme: &'a str,
     /// It stores the user selected upstream search engines selected from the UI.
-    pub engines: Vec<String>,
+    pub engines: Vec<&'a str>,
 }