diff --git a/static/favicon.ico b/static/favicon.ico
new file mode 100644
index 0000000..9051c87
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diff --git a/static/favicon.png b/static/favicon.png
new file mode 100644
index 0000000..57b77d3
Binary files /dev/null and b/static/favicon.png differ
diff --git a/static/vendor/applause-button/applause-button.css b/static/vendor/applause-button/applause-button.css
new file mode 100644
index 0000000..1a37eec
--- /dev/null
+++ b/static/vendor/applause-button/applause-button.css
@@ -0,0 +1,3 @@
+/* Via: https://unpkg.com/applause-button/dist/applause-button.css */
+
+applause-button{position:relative;cursor:pointer}applause-button .style-root{position:absolute;top:0;left:0;right:0;bottom:0}applause-button .style-root:after{position:absolute;top:0;left:0;right:0;bottom:0;content:" ";display:block;border-radius:50%;border:1px solid}applause-button .style-root:hover:after:not(.clap-limit-exceeded){border-color:inherit}applause-button.loading{opacity:0.5}applause-button .shockwave{position:absolute;top:0;left:0;right:0;bottom:0;border-radius:50%}applause-button svg{position:absolute;width:60%;height:60%;margin-left:20%;margin-top:20%;position:absolute;top:0;left:0;right:0;bottom:0;opacity:0.8;stroke:none;overflow:visible !important}applause-button svg g.flat{visibility:hidden}applause-button svg g.outline{visibility:visible}applause-button.clapped svg g.flat{visibility:visible}applause-button.clapped svg g.outline{visibility:hidden}applause-button .count-container{position:absolute;top:-40%;width:100%;color:gray;user-select:none}applause-button .count-container .count{margin-left:50%;transform:translateX(-50%);width:1000px;text-align:center}applause-button g.sparkle circle{opacity:0;stroke-width:0}applause-button g.sparkle g:nth-child(1){transform:rotate(0deg) translateX(10px)}applause-button g.sparkle g:nth-child(2){transform:rotate(72deg) translateX(10px)}applause-button g.sparkle g:nth-child(3){transform:rotate(144deg) translateX(10px)}applause-button g.sparkle g:nth-child(4){transform:rotate(216deg) translateX(10px)}applause-button g.sparkle g:nth-child(5){transform:rotate(288deg) translateX(10px)}applause-button:hover:not(.clapped) .shockwave{animation-name:shockwave;animation-duration:1s;animation-iteration-count:infinite;animation-timing-function:ease-in}applause-button.clap{animation-name:pulse;animation-duration:0.5s;animation-iteration-count:1}applause-button.clap .sparkle circle{animation-name:explode;animation-duration:0.5s;animation-iteration-count:1}applause-button.clap .count{animation-name:hideThenShow;animation-duration:0.5s;animation-iteration-count:1}@keyframes explode{0%{transform:translateX(10px);opacity:0}20%{opacity:1}50%{opacity:1}100%{opacity:0;transform:translateX(25px)}}@keyframes shockwave{0%{transform:scale(1);box-shadow:0 0 2px;opacity:1}100%{transform:scale(1);opacity:0;box-shadow:0 0 50px, inset 0 0 10px}}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.1)}100%{transform:scale(1)}}@keyframes hideThenShow{0%{opacity:1;transform:translateY(0)}20%{opacity:0;transform:translateY(-10px)}50%{transform:translateY(10px)}80%{transform:translateY(10px);opacity:0}100%{opacity:1;transform:translateY(0)}}
diff --git a/static/vendor/applause-button/applause-button.js b/static/vendor/applause-button/applause-button.js
new file mode 100644
index 0000000..691eb82
--- /dev/null
+++ b/static/vendor/applause-button/applause-button.js
@@ -0,0 +1,3 @@
+// Via: https://unpkg.com/applause-button/dist/applause-button.js
+
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n=Number(t);u(n),n>0&&(e._countElement.innerHTML=l(n))}),this._connected=!0}}},{key:"attributeChangedCallback",value:function(e,t,n){this._updateRootColor()}},{key:"_updateRootColor",value:function(){if(this._styleRootElement){var e=this.getAttribute("color")||"green",t=this._styleRootElement.style;t.fill=e,t.stroke=e,t.color=e}}},{key:"initialClapCount",get:function(){return this._initialClapCount}},{key:"color",get:function(){return this.getAttribute("color")},set:function(e){e?this.setAttribute("color",e):this.removeAttribute("color"),this._updateRootColor()}},{key:"api",set:function(e){e?this.setAttribute("api",e):this.removeAttribute("api")},get:function(){return this.getAttribute("api")||"https://api.applause-button.com"}},{key:"url",set:function(e){e?this.setAttribute("url",e):this.removeAttribute("url"),this._updateRootColor()},get:function(){return this.getAttribute("url")}},{key:"multiclap",get:function(){return"true"===this.getAttribute("multiclap")},set:function(e){e?this.setAttribute("multiclap",e?"true":"false"):this.removeAttribute("multiclap")}}],[{key:"observedAttributes",get:function(){return["color"]}}]),a}();customElements.define("applause-button",a)});
diff --git a/themes/zenn/templates/site.html b/themes/zenn/templates/site.html
index a313d15..7064425 100644
--- a/themes/zenn/templates/site.html
+++ b/themes/zenn/templates/site.html
@@ -9,6 +9,7 @@
         <meta name="HandheldFriendly" content="True">
         <meta name="MobileOptimized" content="320">
         <meta name="viewport" content="width=device-width, initial-scale=1">
+        <link rel="icon" type="image/png" href="/favicon.png" />
 
         <title>
             {% block title %}
@@ -27,13 +28,13 @@
             <link rel="stylesheet" href="{{ get_url(path="site.css", trailing_slash=false) | safe }}">
 
             {% if page.extra.zenn_applause %}
-                <link rel="stylesheet" href="https://unpkg.com/applause-button/dist/applause-button.css">
+                <link rel="stylesheet" href="{{ get_url(path="vendor/applause-button/applause-button.css", trailing_slash=false) | safe }}">
             {% endif %}
         {% endblock css %}
 
         {% block js %}
             {% if page.extra.zenn_applause %}
-                <script src="https://unpkg.com/applause-button/dist/applause-button.js"></script>
+                <script src="{{ get_url(path="vendor/applause-button/applause-button.js", trailing_slash=false) | safe }}"></script>
             {% endif %}
         {% endblock js %}