diff --git a/packages/frontend/src/components/global/MkUrl.vue b/packages/frontend/src/components/global/MkUrl.vue
index 15595ba515..d3bddb017f 100644
--- a/packages/frontend/src/components/global/MkUrl.vue
+++ b/packages/frontend/src/components/global/MkUrl.vue
@@ -8,6 +8,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	:is="self ? 'MkA' : 'a'" ref="el" :class="$style.root" class="_link" :[attr]="self ? props.url.substring(local.length) : props.url" :rel="rel ?? 'nofollow noopener'" :target="target"
 	:behavior="props.navigationBehavior"
 	@contextmenu.stop="() => {}"
+	@click.prevent="self ? true : warningExternalWebsite(url)"
 	@click.stop
 >
 	<template v-if="!self">
@@ -34,6 +35,7 @@ import { useTooltip } from '@/scripts/use-tooltip.js';
 import { safeURIDecode } from '@/scripts/safe-uri-decode.js';
 import { isEnabledUrlPreview } from '@/instance.js';
 import { MkABehavior } from '@/components/global/MkA.vue';
+import { warningExternalWebsite } from '@/scripts/warning-external-website.js';
 
 const props = withDefaults(defineProps<{
 	url: string;