diff --git a/src/config.ts b/src/config.ts
index c8457cb..0b70e96 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,6 +1,6 @@
-import type { SocialObjects } from "./types";
+import type { Site, SocialObjects } from "./types";
 
-export const SITE = {
+export const SITE: Site = {
   website: "https://astro-paper.pages.dev/",
   author: "Sat Naing",
   desc: "A minimal, responsive and SEO-friendly Astro blog theme.",
diff --git a/src/types.ts b/src/types.ts
index 6441dec..70f4254 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,3 +1,13 @@
+export type Site = {
+  website: string;
+  author: string;
+  desc: string;
+  title: string;
+  ogImage: string;
+  lightAndDarkMode: boolean;
+  postPerPage: number;
+};
+
 export type SocialObjects = {
   name: SocialMedia;
   href: string;