diff --git a/public/base-light.html b/public/base-light.html
index 9478bda..bdd4331 100644
--- a/public/base-light.html
+++ b/public/base-light.html
@@ -19,9 +19,9 @@
         <title>{% block title %}nercone's website{% endblock %}</title>
         <meta name="description" content="{% block description %}No description.{% endblock %}">
         <!-- Favicons -->
-        <link rel="apple-touch-icon" href="/assets/images/favicon.png" sizes="1200x1200">
-        <link rel="icon" type="image/png" href="/assets/images/favicon.png" sizes="1200x1200">
-        <link rel="icon" type="image/svg+xml" href="/assets/images/favicon.svg" sizes="1200x1200">
+        <link rel="apple-touch-icon" href="https://assets.nercone.dev/images/favicon.png" sizes="1200x1200">
+        <link rel="icon" type="image/png" href="https://assets.nercone.dev/images/favicon.png" sizes="1200x1200">
+        <link rel="icon" type="image/svg+xml" href="https://assets.nercone.dev/images/favicon.svg" sizes="1200x1200">
         <!-- Stylesheets / Scripts -->
         <link rel="stylesheet" href="/assets/css/style-light.css">
         <script src="/assets/js/script-light.js" defer></script>
@@ -36,7 +36,7 @@
             </div>
             <div class="flex">
                 <a href="/access-counter/" class="text-no-decoration hide show-on-medium show-on-large">あなたは{{ get_access_count() }}番目の訪問者です。</a>
-                <a href="?lightweight=0" class="hide show-on-small"><img alt="lightweight-mode" src="/assets/images/icons/lightweight-mode.svg" class="small-icon"></a>
+                <a href="?lightweight=0" class="hide show-on-small"><img alt="lightweight-mode" src="https://assets.nercone.dev/images/icons/lightweight-mode.svg" class="small-icon"></a>
             </div>
         </header>
         <main>{% block content %}{% endblock %}</main>
@@ -53,11 +53,11 @@
                 <a href="?lightweight=0" class="text-no-decoration hide show-on-medium show-on-large font-bold">lightweight-mode</a>
             </div>
             <div class="flex">
-                <a href="https://github.com/nercone-dev/"><img alt="github" src="/assets/images/icons/github.svg" class="small-icon"></a>
-                <a href="https://orcid.org/0009-0001-3615-0962/"><img alt="orcid" src="/assets/images/icons/orcid.svg" class="small-icon">
-                <a href="https://twitter.com/nercone_x/"><img alt="twitter" src="/assets/images/icons/twitter.svg" class="small-icon">
-                <a href="https://qiita.com/DiamondGotCat/"><img alt="qiita" src="/assets/images/icons/qiita.svg" class="small-icon">
-                <a href="https://zenn.dev/techcat56/"><img alt="zenn" src="/assets/images/icons/zenn.svg" class="small-icon">
+                <a href="https://github.com/nercone-dev/"><img alt="github" src="https://assets.nercone.dev/images/icons/github.svg" class="small-icon"></a>
+                <a href="https://orcid.org/0009-0001-3615-0962/"><img alt="orcid" src="https://assets.nercone.dev/images/icons/orcid.svg" class="small-icon">
+                <a href="https://twitter.com/nercone_x/"><img alt="twitter" src="https://assets.nercone.dev/images/icons/twitter.svg" class="small-icon">
+                <a href="https://qiita.com/DiamondGotCat/"><img alt="qiita" src="https://assets.nercone.dev/images/icons/qiita.svg" class="small-icon">
+                <a href="https://zenn.dev/techcat56/"><img alt="zenn" src="https://assets.nercone.dev/images/icons/zenn.svg" class="small-icon">
                 <!--                                            qiita                           kotonai -->
                 <a href="/server-version/" class="font-bold text-no-decoration hide show-on-medium show-on-large">{{ server_version }}</a>
             </div>
diff --git a/public/base.html b/public/base.html
index 764f6a3..56e0816 100644
--- a/public/base.html
+++ b/public/base.html
@@ -29,19 +29,19 @@
         <meta property="og:site_name" content="nercone's website">
         <meta property="og:title" content="{{ self.title() }}">
         <meta property="og:description" content="{{ self.description() }}">
-        <meta property="og:image" content="https://nercone.dev/assets/images/thumbnails/{{ request.url.path.strip('/') or 'index' }}?title={% block thumbnail_title %}{{ self.title() | re_sub(' - Nercone.*$', '') | urlencode }}{% endblock %}&description={% block thumbnail_description %}{{ self.description() | urlencode }}{% endblock %}&template={% block thumbnail_template %}normal{% endblock %}">
+        <meta property="og:image" content="https://nercone.devhttps://assets.nercone.dev/images/thumbnails/{{ request.url.path.strip('/') or 'index' }}?title={% block thumbnail_title %}{{ self.title() | re_sub(' - Nercone.*$', '') | urlencode }}{% endblock %}&description={% block thumbnail_description %}{{ self.description() | urlencode }}{% endblock %}&template={% block thumbnail_template %}normal{% endblock %}">
         <meta property="og:url" content="https://nercone.dev/">
         <meta property="og:type" content="website">
         <!-- Twitter -->
         <meta name="twitter:card" content="summary_large_image">
         <meta name="twitter:title" content="{{ self.title() }}">
         <meta name="twitter:description" content="{{ self.description() }}">
-        <meta name="twitter:image" content="https://nercone.dev/assets/images/thumbnails/{{ request.url.path.strip('/') or 'index' }}?title={{ self.thumbnail_title() }}&description={{ self.thumbnail_description() }}&template={{ self.thumbnail_template() }}">
+        <meta name="twitter:image" content="https://nercone.devhttps://assets.nercone.dev/images/thumbnails/{{ request.url.path.strip('/') or 'index' }}?title={{ self.thumbnail_title() }}&description={{ self.thumbnail_description() }}&template={{ self.thumbnail_template() }}">
         <!-- PWA (Progressive Web App) -->
         <link rel="manifest" href="/site.webmanifest">
-        <link rel="apple-touch-icon" href="/assets/images/favicon.png" sizes="1200x1200">
-        <link rel="icon" type="image/png" href="/assets/images/favicon.png" sizes="1200x1200">
-        <link rel="icon" type="image/svg+xml" href="/assets/images/favicon.svg" sizes="1200x1200">
+        <link rel="apple-touch-icon" href="https://assets.nercone.dev/images/favicon.png" sizes="1200x1200">
+        <link rel="icon" type="image/png" href="https://assets.nercone.dev/images/favicon.png" sizes="1200x1200">
+        <link rel="icon" type="image/svg+xml" href="https://assets.nercone.dev/images/favicon.svg" sizes="1200x1200">
         <!-- Stylesheets / Scripts -->
         <link rel="preconnect" href="https://fonts.googleapis.com">
         <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
@@ -61,7 +61,7 @@
             </div>
             <div class="flex">
                 <a href="/access-counter/" class="text-no-decoration hide show-on-medium show-on-large">あなたは{{ get_access_count() }}番目の訪問者です。</a>
-                <a href="?lightweight=1" class="hide show-on-small"><img alt="lightweight-mode" src="/assets/images/icons/lightweight-mode-false.svg" class="small-icon"></a>
+                <a href="?lightweight=1" class="hide show-on-small"><img alt="lightweight-mode" src="https://assets.nercone.dev/images/icons/lightweight-mode-false.svg" class="small-icon"></a>
             </div>
         </header>
         {% endblock %}
@@ -84,11 +84,11 @@
                 {% endblock %}
             </div>
             <div class="flex">
-                <a href="https://github.com/nercone-dev/"><img alt="github" src="/assets/images/icons/github.svg" class="small-icon"></a>
-                <a href="https://orcid.org/0009-0001-3615-0962/"><img alt="orcid" src="/assets/images/icons/orcid.svg" class="small-icon">
-                <a href="https://twitter.com/nercone_x/"><img alt="twitter" src="/assets/images/icons/twitter.svg" class="small-icon">
-                <a href="https://qiita.com/DiamondGotCat/"><img alt="qiita" src="/assets/images/icons/qiita.svg" class="small-icon">
-                <a href="https://zenn.dev/techcat56/"><img alt="zenn" src="/assets/images/icons/zenn.svg" class="small-icon">
+                <a href="https://github.com/nercone-dev/"><img alt="github" src="https://assets.nercone.dev/images/icons/github.svg" class="small-icon"></a>
+                <a href="https://orcid.org/0009-0001-3615-0962/"><img alt="orcid" src="https://assets.nercone.dev/images/icons/orcid.svg" class="small-icon">
+                <a href="https://twitter.com/nercone_x/"><img alt="twitter" src="https://assets.nercone.dev/images/icons/twitter.svg" class="small-icon">
+                <a href="https://qiita.com/DiamondGotCat/"><img alt="qiita" src="https://assets.nercone.dev/images/icons/qiita.svg" class="small-icon">
+                <a href="https://zenn.dev/techcat56/"><img alt="zenn" src="https://assets.nercone.dev/images/icons/zenn.svg" class="small-icon">
                 <!--                                            qiita                           kotonai -->
                 <a href="/server-version/" class="font-bold text-no-decoration hide show-on-medium show-on-large">{{ server_version }}</a>
             </div>
diff --git a/public/download-banner.md b/public/download-banner.md
index eec1719..23ac464 100644
--- a/public/download-banner.md
+++ b/public/download-banner.md
@@ -7,7 +7,7 @@ description: Nerconeのバナー画像をダウンロード
 
 ## バナーのダウンロード
 
-<a href="/assets/images/banner.ai" class="text-no-decoration" download>adobe-illustrator</a> / <a href="/assets/images/banner.svg" class="text-no-decoration" download>svg</a> / <a href="/assets/images/banner.png" class="text-no-decoration" download>png</a> / <a href="/assets/images/banner.webp" class="text-no-decoration" download>webp</a>
+<a href="https://assets.nercone.dev/images/banner.ai" class="text-no-decoration" download>adobe-illustrator</a> / <a href="https://assets.nercone.dev/images/banner.svg" class="text-no-decoration" download>svg</a> / <a href="https://assets.nercone.dev/images/banner.png" class="text-no-decoration" download>png</a> / <a href="https://assets.nercone.dev/images/banner.webp" class="text-no-decoration" download>webp</a>
 
 ```
 <a href="https://nercone.dev/"><img src="https://assets.nercone.dev/images/banner.svg"></a>  <!-- SVG -->
diff --git a/public/links.html b/public/links.html
index dc63bf5..75d39d6 100644
--- a/public/links.html
+++ b/public/links.html
@@ -5,7 +5,7 @@
 {% block description %}Nerconeのリンク集{% endblock %}
 {% block content %}
             <div id="nercone" class="block">
-                <img src="/assets/images/banner.png" alt="banner-nercone" class="banner">
+                <img src="https://assets.nercone.dev/images/banner.png" alt="banner-nercone" class="banner">
                 <h3 style="margin-top: 8px; margin-bottom: 4px;">nercone</h3>
                 <p style="margin-top: 4px;">It's me.</p>
                 <div class="flex font-small text-tx-alt">
diff --git a/public/qr-code.html b/public/qr-code.html
index 48ca89b..aba6d1b 100644
--- a/public/qr-code.html
+++ b/public/qr-code.html
@@ -12,5 +12,5 @@
         </style>
 {% endblock %}
 {% block content %}
-            <img src="/assets/images/qr_code.svg" width="256" height="256">
+            <img src="https://assets.nercone.dev/images/qr_code.svg" width="256" height="256">
 {% endblock %}
diff --git a/public/site.webmanifest b/public/site.webmanifest
index eba39a3..cd328c1 100644
--- a/public/site.webmanifest
+++ b/public/site.webmanifest
@@ -7,12 +7,12 @@
     "background_color": "#1A1A1A",
     "icons": [
         {
-            "src": "/assets/images/favicon.png",
+            "src": "https://assets.nercone.dev/images/favicon.png",
             "type": "image/png",
             "sizes": "1200x1200"
         },
         {
-            "src": "/assets/images/favicon.svg",
+            "src": "https://assets.nercone.dev/images/favicon.svg",
             "type": "image/svg+xml",
             "sizes": "1200x1200"
         }
diff --git a/public/test/html.html b/public/test/html.html
index 77c0c02..1f68c6b 100644
--- a/public/test/html.html
+++ b/public/test/html.html
@@ -13,5 +13,5 @@
             <pre>import requests<br>print(requests.get("https://nercone.dev/welcome").text)</pre>
             <p><a href="https://www.youtube.com/watch?v=dQw4w9WgXcQ">リンク</a></p>
             <p><b>画像:</b></p>
-            <img src="/assets/images/favicon.png" width="256px">
+            <img src="https://assets.nercone.dev/images/favicon.png" width="256px">
 {% endblock %}
diff --git a/public/test/markdown.md b/public/test/markdown.md
index b618e35..008f1e7 100644
--- a/public/test/markdown.md
+++ b/public/test/markdown.md
@@ -28,4 +28,4 @@ print(requests.get("https://nercone.dev/welcome").text)
 
 **HTML埋め込み(`<img>`タグ):**
 
-<img src="/assets/images/favicon.png" width="256px">
+<img src="https://assets.nercone.dev/images/favicon.png" width="256px">