diff --git a/.prettierignore b/.prettierignore
index 433ba8e..5d1d4a4 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -6,7 +6,7 @@
 !/public
 !/.github
 !tsconfig.json
-!astro.config.mjs
+!astro.config.ts
 !package.json
 !.prettierrc
 !.eslintrc.js
diff --git a/astro.config.mjs b/astro.config.ts
similarity index 86%
rename from astro.config.mjs
rename to astro.config.ts
index 9c2d6b7..dbde794 100644
--- a/astro.config.mjs
+++ b/astro.config.ts
@@ -4,10 +4,11 @@ import react from "@astrojs/react";
 import remarkToc from "remark-toc";
 import remarkCollapse from "remark-collapse";
 import sitemap from "@astrojs/sitemap";
+import { SITE } from "./src/config";
 
 // https://astro.build/config
 export default defineConfig({
-  site: "https://astro-paper.pages.dev/", // replace this with your deployed domain
+  site: SITE.website,
   integrations: [
     tailwind({
       applyBaseStyles: false,
@@ -29,7 +30,6 @@ export default defineConfig({
       theme: "one-dark-pro",
       wrap: true,
     },
-    extendDefaultPlugins: true,
   },
   vite: {
     optimizeDeps: {
diff --git a/src/config.ts b/src/config.ts
index b7933f6..b4909b1 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -1,7 +1,7 @@
 import type { Site, SocialObjects } from "./types";
 
 export const SITE: Site = {
-  website: "https://astro-paper.pages.dev/",
+  website: "https://astro-paper.pages.dev/", // replace this with your deployed domain
   author: "Sat Naing",
   desc: "A minimal, responsive and SEO-friendly Astro blog theme.",
   title: "AstroPaper",
diff --git a/src/content/blog/how-to-add-an-estimated-reading-time.md b/src/content/blog/how-to-add-an-estimated-reading-time.md
index bc9a01c..2cff19a 100644
--- a/src/content/blog/how-to-add-an-estimated-reading-time.md
+++ b/src/content/blog/how-to-add-an-estimated-reading-time.md
@@ -37,7 +37,7 @@ export function remarkReadingTime() {
 }
 ```
 
-Step (3) Add the plugin to `astro.config.mjs`
+Step (3) Add the plugin to `astro.config.ts`
 
 ```js
 import { remarkReadingTime } from "./src/utils/remark-reading-time.mjs"; // make sure your relative path is correct
diff --git a/src/content/blog/how-to-configure-astropaper-theme.md b/src/content/blog/how-to-configure-astropaper-theme.md
index b9e4458..79ce4cb 100644
--- a/src/content/blog/how-to-configure-astropaper-theme.md
+++ b/src/content/blog/how-to-configure-astropaper-theme.md
@@ -34,17 +34,6 @@ export const SITE = {
 };
 ```
 
-Then, replace site property of `astro.config.mjs` file with your own deployed domain. _(You can also omit this step if you don't have deployed domain yet or you are still in development mode)_
-
-```js
-// file: astro.config.mjs
-export default defineConfig({
-  site: "https://astro-paper.pages.dev/", // replace this with your deployed domain
-  integrations: [...],
-  ...
-)}
-```
-
 Here are SITE configuration options
 
 | Options            | Description                                                                                                                                                  |