diff --git a/CHANGELOG.md b/CHANGELOG.md
index a02788b7ac..7840e3cc5c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,7 +11,8 @@ You should also include the user name that made the change.
 ## 13.x.x (unreleased)
 
 ### Improvements
-- Server: UIのHTML（ノートなどの特別なページを除く）のキャッシュ時間を15秒から300秒に
+- Server: UIのHTML（ノートなどの特別なページを除く）のキャッシュ時間を15秒から30秒に
+- i/notificationsのレートリミットを緩和
 
 ### Bugfixes
 -
diff --git a/locales/es-ES.yml b/locales/es-ES.yml
index 2464fb1240..f3cd85e6a0 100644
--- a/locales/es-ES.yml
+++ b/locales/es-ES.yml
@@ -129,6 +129,7 @@ unblockConfirm: "¿Quiere dejar de bloquear esta cuenta?"
 suspendConfirm: "¿Quiere suspender esta cuenta?"
 unsuspendConfirm: "¿Quiere dejar de suspender esta cuenta?"
 selectList: "Seleccione una lista"
+selectChannel: "Seleccionar canal"
 selectAntenna: "Seleccionar antena"
 selectWidget: "Seleccionar widget"
 editWidgets: "Editar widgets"
diff --git a/packages/backend/src/server/api/endpoints/i/notifications.ts b/packages/backend/src/server/api/endpoints/i/notifications.ts
index 13de3382dd..09bd4cfc17 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications.ts
@@ -15,7 +15,7 @@ export const meta = {
 	requireCredential: true,
 
 	limit: {
-		duration: 60000,
+		duration: 30000,
 		max: 15,
 	},
 
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 46470246ef..c69ee33ea3 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -337,7 +337,7 @@ export class ClientServerService {
 
 		const renderBase = async (reply: FastifyReply) => {
 			const meta = await this.metaService.fetch();
-			reply.header('Cache-Control', 'public, max-age=300');
+			reply.header('Cache-Control', 'public, max-age=30');
 			return await reply.view('base', {
 				img: meta.bannerUrl,
 				title: meta.name ?? 'Misskey',