diff --git a/_layouts/redirect.html b/_layouts/redirect.html
new file mode 100644
index 00000000..2af1e077
--- /dev/null
+++ b/_layouts/redirect.html
@@ -0,0 +1,11 @@
+
+
+ {% include head.html %}
+
+
+ Redirecting…
+ Click here if you are not redirected.
+
+
+
+
diff --git a/_pages/redirect-to-contests-how-to-apply.html b/_pages/redirect-to-contests-how-to-apply.html
deleted file mode 100644
index 2e790c50..00000000
--- a/_pages/redirect-to-contests-how-to-apply.html
+++ /dev/null
@@ -1,36 +0,0 @@
----
-permalink: /contests/how-to-apply.html
----
-
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- 『DojoCon Japan 2025 プログラミングコンテスト』応募方法 | DojoCon Japan 2025
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- Redirecting…
- Click here if you are not redirected.
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diff --git a/_pages/redirect-to-contests-terms.html b/_pages/redirect-to-contests-terms.html
deleted file mode 100644
index 9c9de55a..00000000
--- a/_pages/redirect-to-contests-terms.html
+++ /dev/null
@@ -1,36 +0,0 @@
----
-permalink: /contests/terms.html
----
-
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-
-
- DojoCon Japan 2025 プログラミングコンテスト 参加規約 | DojoCon Japan 2025
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- Redirecting…
- Click here if you are not redirected.
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diff --git a/_posts/2025-07-21-contest-terms.md b/_posts/2025-07-21-contest-terms.md
index fe271290..07fb0d6b 100644
--- 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
---
diff --git a/_posts/2025-08-02-contest-how-to-apply.md b/_posts/2025-08-02-contest-how-to-apply.md
index 8bd0e2a0..ed9aa9a3 100644
--- 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
---