diff --git a/locales/en-US.yml b/locales/en-US.yml
index 221ade4028..4321c9b5fe 100644
--- a/locales/en-US.yml
+++ b/locales/en-US.yml
@@ -263,6 +263,8 @@ noCustomEmojis: "There are no emoji"
 noJobs: "There are no jobs"
 federating: "Federating"
 blocked: "Blocked"
+blockedByBase: "This host is blocked implicitly because a base domain is blocked. To unblock this host, first unblock the base domain(s)."
+silencedByBase: "This host is silenced implicitly because a base domain is silenced. To un-silence this host, first un-silence the base domain(s)."
 suspended: "Suspended"
 all: "All"
 subscribing: "Subscribing"
diff --git a/locales/index.d.ts b/locales/index.d.ts
index f93ef14325..530c5008e3 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1068,6 +1068,14 @@ export interface Locale extends ILocale {
      * ブロック中
      */
     "blocked": string;
+    /**
+     * This host is blocked implicitly because a base domain is blocked. To unblock this host, first unblock the base domain(s).
+     */
+    "blockedByBase": string;
+    /**
+     * This host is silenced implicitly because a base domain is silenced. To un-silence this host, first un-silence the base domain(s).
+     */
+    "silencedByBase": string;
     /**
      * 配信停止
      */
@@ -3128,6 +3136,10 @@ export interface Locale extends ILocale {
      * 返信にサーバー情報を表示する
      */
     "showTickerOnReplies": string;
+    /**
+     * 猫の話し方を無効にする
+     */
+    "disableCatSpeak": string;
     /**
      * 検索MFMの検索エンジン
      */
@@ -4429,10 +4441,6 @@ export interface Locale extends ILocale {
      * 連合なしにする
      */
     "disableFederationOk": string;
-    /**
-     * 猫の話し方を無効にする
-     */
-    "disableCatSpeak": string;
     /**
      * 現在このサーバーは招待制です。招待コードをお持ちの方のみ登録できます。
      */
@@ -5777,7 +5785,7 @@ export interface Locale extends ILocale {
          */
         "social": string;
         /**
-         * バッッブルタイムラインでは、管理者が選択した接続サーバーからのメモを表示できます。
+         * バブルタイムラインでは、管理者が選択した接続サーバーからの投稿を表示できます。
          */
         "bubble": string;
         /**
@@ -9139,7 +9147,7 @@ export interface Locale extends ILocale {
          */
         "global": string;
         /**
-         * バッッブル
+         * バブル
          */
         "bubble": string;
     };
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 70acc3adf4..ab70767925 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -263,6 +263,8 @@ noCustomEmojis: "絵文字はありません"
 noJobs: "ジョブはありません"
 federating: "連合中"
 blocked: "ブロック中"
+blockedByBase: "This host is blocked implicitly because a base domain is blocked. To unblock this host, first unblock the base domain(s)."
+silencedByBase: "This host is silenced implicitly because a base domain is silenced. To un-silence this host, first un-silence the base domain(s)."
 suspended: "配信停止"
 all: "全て"
 subscribing: "購読中"
diff --git a/packages/frontend/src/pages/instance-info.vue b/packages/frontend/src/pages/instance-info.vue
index 4ff26197d8..6848a0715a 100644
--- a/packages/frontend/src/pages/instance-info.vue
+++ b/packages/frontend/src/pages/instance-info.vue
@@ -45,8 +45,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 						</MkKeyValue>
 						<MkButton v-if="suspensionState === 'none'" :disabled="!instance" danger @click="stopDelivery">{{ i18n.ts._delivery.stop }}</MkButton>
 						<MkButton v-if="suspensionState !== 'none'" :disabled="!instance" @click="resumeDelivery">{{ i18n.ts._delivery.resume }}</MkButton>
-						<MkSwitch v-model="isBlocked" :disabled="!meta || !instance" @update:modelValue="toggleBlock">{{ i18n.ts.blockThisInstance }}</MkSwitch>
-						<MkSwitch v-model="isSilenced" :disabled="!meta || !instance" @update:modelValue="toggleSilenced">{{ i18n.ts.silenceThisInstance }}</MkSwitch>
+						<MkInfo v-if="isBaseBlocked" warn>{{ i18n.ts.blockedByBase }}</MkInfo>
+						<MkSwitch v-model="isBlocked" :disabled="!meta || !instance || isBaseBlocked" @update:modelValue="toggleBlock">{{ i18n.ts.blockThisInstance }}</MkSwitch>
+						<MkInfo v-if="isBaseSilenced" warn>{{ i18n.ts.silenedByBase }}</MkInfo>
+						<MkSwitch v-model="isSilenced" :disabled="!meta || !instance || isBaseSilenced" @update:modelValue="toggleSilenced">{{ i18n.ts.silenceThisInstance }}</MkSwitch>
 						<MkSwitch v-model="isNSFW" :disabled="!instance" @update:modelValue="toggleNSFW">Mark as NSFW</MkSwitch>
 						<MkSwitch v-model="isMediaSilenced" :disabled="!meta || !instance" @update:modelValue="toggleMediaSilenced">{{ i18n.ts.mediaSilenceThisInstance }}</MkSwitch>
 						<MkButton @click="refreshMetadata"><i class="ti ti-refresh"></i> Refresh metadata</MkButton>
@@ -174,6 +176,20 @@ const isMediaSilenced = ref(false);
 const faviconUrl = ref<string | null>(null);
 const moderationNote = ref('');
 
+const baseDomains = computed(() => {
+	const domains: string[] = [];
+
+	const parts = props.host.toLowerCase().split('.');
+	for (let s = 1; s < parts.length; s++) {
+		const domain = parts.slice(s).join('.');
+		domains.push(domain);
+	}
+
+	return domains;
+});
+const isBaseBlocked = computed(() => meta.value && baseDomains.value.some(d => meta.value?.blockedHosts.includes(d)));
+const isBaseSilenced = computed(() => meta.value && meta.value.silencedHosts && baseDomains.value.some(d => meta.value?.silencedHosts?.includes(d)));
+
 const usersPagination = {
 	endpoint: iAmModerator ? 'admin/show-users' : 'users' as const,
 	limit: 10,