diff --git a/README.md b/README.md
index fb809b7b..ab5525d5 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@
 
 ## 細かい変更点
 
+- インデックス拒否に `noindex` に加えて `nofollow,noarchive,nocache,noimageindex` も指定
 - インスタンスティッカーに表示するサーバーのアイコンとして favicon を優先する
   - favicon のほうがよくカスタマイズされているため
 - 誤爆しやすい位置にあるフォローボタンを隠す設定を追加
diff --git a/packages/backend/src/server/web/views/base.pug b/packages/backend/src/server/web/views/base.pug
index 7fda4f8a..cd42d829 100644
--- a/packages/backend/src/server/web/views/base.pug
+++ b/packages/backend/src/server/web/views/base.pug
@@ -55,7 +55,7 @@ html
 
 		block meta
 			if privateMode
-				meta(name='robots' content='noindex')
+				meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 
 		block og
 			meta(property='og:title'       content=title || 'Firefish')
diff --git a/packages/backend/src/server/web/views/clip.pug b/packages/backend/src/server/web/views/clip.pug
index 79d62938..47dd0971 100644
--- a/packages/backend/src/server/web/views/clip.pug
+++ b/packages/backend/src/server/web/views/clip.pug
@@ -23,7 +23,7 @@ block og
 block meta
 	unless privateMode
 		if profile.noCrawle
-			meta(name='robots' content='noindex')
+			meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 		if profile.preventAiLearning
 			meta(name='robots' content='noai')
 			meta(name='robots' content='noimageai')
diff --git a/packages/backend/src/server/web/views/gallery-post.pug b/packages/backend/src/server/web/views/gallery-post.pug
index 561a19b2..050a06d9 100644
--- a/packages/backend/src/server/web/views/gallery-post.pug
+++ b/packages/backend/src/server/web/views/gallery-post.pug
@@ -23,7 +23,7 @@ block og
 block meta
 	unless privateMode
 		if user.host || profile.noCrawle
-			meta(name='robots' content='noindex')
+			meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 		if profile.preventAiLearning
 			meta(name='robots' content='noai')
 			meta(name='robots' content='noimageai')
diff --git a/packages/backend/src/server/web/views/note.pug b/packages/backend/src/server/web/views/note.pug
index dae0a82d..9cd29021 100644
--- a/packages/backend/src/server/web/views/note.pug
+++ b/packages/backend/src/server/web/views/note.pug
@@ -35,7 +35,7 @@ block og
 block meta
 	unless privateMode
 		if user.host || isRenote || profile.noCrawle
-			meta(name='robots' content='noindex')
+			meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 		if profile.preventAiLearning
 			meta(name='robots' content='noai')
 			meta(name='robots' content='noimageai')
diff --git a/packages/backend/src/server/web/views/page.pug b/packages/backend/src/server/web/views/page.pug
index bfc7ebf7..e466c797 100644
--- a/packages/backend/src/server/web/views/page.pug
+++ b/packages/backend/src/server/web/views/page.pug
@@ -23,7 +23,7 @@ block og
 block meta
 	unless privateMode
 		if profile.noCrawle
-			meta(name='robots' content='noindex')
+			meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 		if profile.preventAiLearning
 			meta(name='robots' content='noai')
 			meta(name='robots' content='noimageai')
diff --git a/packages/backend/src/server/web/views/user.pug b/packages/backend/src/server/web/views/user.pug
index f5820f55..d77b3986 100644
--- a/packages/backend/src/server/web/views/user.pug
+++ b/packages/backend/src/server/web/views/user.pug
@@ -23,7 +23,7 @@ block og
 block meta
 	unless privateMode
 		if user.host || profile.noCrawle
-			meta(name='robots' content='noindex')
+			meta(name='robots' content='noindex,nofollow,noarchive,nocache,noimageindex')
 		if profile.preventAiLearning
 			meta(name='robots' content='noai')
 			meta(name='robots' content='noimageai')