diff --git a/packages/frontend/src/components/MkUrlPreview.vue b/packages/frontend/src/components/MkUrlPreview.vue
index 1f9c336eee..bac7f1e310 100644
--- a/packages/frontend/src/components/MkUrlPreview.vue
+++ b/packages/frontend/src/components/MkUrlPreview.vue
@@ -133,7 +133,7 @@ let unknownUrl = $ref(false);
 const requestUrl = new URL(props.url);
 if (!['http:', 'https:'].includes(requestUrl.protocol)) throw new Error('invalid url');
 
-if (requestUrl.hostname === 'twitter.com' || requestUrl.hostname === 'mobile.twitter.com') {
+if (requestUrl.hostname === 'twitter.com' || requestUrl.hostname === 'mobile.twitter.com' || requestUrl.hostname === 'x.com' || requestUrl.hostname === 'mobile.x.com') {
 	const m = requestUrl.pathname.match(/^\/.+\/status(?:es)?\/(\d+)/);
 	if (m) tweetId = m[1];
 }
diff --git a/packages/frontend/test/url-preview.test.ts b/packages/frontend/test/url-preview.test.ts
index b5fcf9bece..0cf3a417e2 100644
--- a/packages/frontend/test/url-preview.test.ts
+++ b/packages/frontend/test/url-preview.test.ts
@@ -152,4 +152,13 @@ describe('MkUrlPreview', () => {
 		assert.strictEqual(iframe?.getAttribute('allow'), 'fullscreen;web-share');
 		assert.strictEqual(iframe?.getAttribute('sandbox'), 'allow-popups allow-scripts allow-same-origin');
 	});
+
+	test('Loading a post in iframe', async () => {
+		const iframe = await renderAndOpenPreview({
+			url: 'https://x.com/i/web/status/1685072521782325249',
+		});
+		assert.exists(iframe, 'iframe should exist');
+		assert.strictEqual(iframe?.getAttribute('allow'), 'fullscreen;web-share');
+		assert.strictEqual(iframe?.getAttribute('sandbox'), 'allow-popups allow-scripts allow-same-origin');
+	});
 });