coderdojo-japan · yasulab · Sep 2, 2025 · Sep 2, 2025 · Sep 2, 2025 · Sep 2, 2025
diff --git a/_layouts/redirect.html b/_layouts/redirect.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang="ja" dir="ltr">
+  {% include head.html %}
+
+  <body>
+    <h1>Redirecting&hellip;</h1>
+    <a href="{{ page.redirect.to }}">Click here if you are not redirected.</a>
+  </body>
+
+  <script>location = "{{ page.redirect.to }}"</script>
+</html>
diff --git a/_pages/redirect-to-contests-how-to-apply.html b/_pages/redirect-to-contests-how-to-apply.html
diff --git a/_pages/redirect-to-contests-terms.html b/_pages/redirect-to-contests-terms.html
diff --git a/_posts/2025-07-21-contest-terms.md b/_posts/2025-07-21-contest-terms.md
@@ -3,6 +3,8 @@ layout: post
 title: DojoCon Japan 2025 プログラミングコンテスト 参加規約
 date: 2025-07-21T00:00:00 UTC+09:00
 permalink: /contests/terms/
+redirect_from:
+  - /contests/terms.html
 ---
 <img src="/img/common/coderdojo-nameplate.webp" loading="lazy" alt="DojoCon Japan Cover Photo"
   title="DojoCon Japan Cover Photo" class="mb-4" />

diff --git a/_posts/2025-08-02-contest-how-to-apply.md b/_posts/2025-08-02-contest-how-to-apply.md
@@ -6,6 +6,8 @@ date: 2025-08-02T01:00:00 UTC+09:00
 categories: news
 tags: 企画
 permalink: /contests/how-to-apply/
+redirect_from:
+  - /contests/how-to-apply.html
 ---
 <style>
 .bordered {

diff --git a/test-directory-structure.py b/test-directory-structure.py
@@ -15,6 +15,7 @@
 
 class Parser(HTMLParser):
     """
+    <h1>Redirecting&hellip;</h1> または
     <meta http-equiv="refresh"> を含むファイルを検査の対象から除外する
     """
 
@@ -34,6 +35,10 @@ def handle_starttag(self, tag: str, attrs: list[tuple[str, str | None]]) -> None
                 self.is_redirect = True
                 break
 
+    def handle_data(self, data: str) -> None:
+        if "Redirecting" in data:
+            self.is_redirect = True
+
 
 def is_redirect(path: str) -> bool:
     with open(path) as fp: