diff --git a/vercel.json b/vercel.json
new file mode 100644
index 000000000..7fe79dcf6
--- /dev/null
+++ b/vercel.json
@@ -0,0 +1,10 @@
+// vercel.json
+{
+ "version": 2,
+ "builds": [
+ { "src": "index.js", "use": "@vercel/node" }
+ ],
+ "routes": [
+ { "src": "/parser", "dest": "index.js" }
+ ]
+}
</div><div class="naked_ctrl">
<form action="/index.cgi/contrast" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://github.com/postlight/parser/compare/main...ABDITOS:parser:main.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://github.com/postlight/parser/compare/main...ABDITOS:parser:main.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>