diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index f1eac354e..afbec98d6 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -751,18 +751,25 @@ async function post(ev?: MouseEvent) {
 				claimAchievement('notes1');
 			}
 
-			const text = postData.text?.toLowerCase() ?? '';
-			if ((text.includes('love') || text.includes('❤')) && text.includes('misskey')) {
+			const text = postData.text ?? '';
+			const lowerCase = text.toLowerCase();
+			if ((lowerCase.includes('love') || lowerCase.includes('❤')) && lowerCase.includes('misskey')) {
 				claimAchievement('iLoveMisskey');
 			}
-			if (
-				text.includes('https://youtu.be/Efrlqw8ytg4'.toLowerCase()) ||
-				text.includes('https://www.youtube.com/watch?v=Efrlqw8ytg4'.toLowerCase()) ||
-				text.includes('https://m.youtube.com/watch?v=Efrlqw8ytg4'.toLowerCase()) ||
-				text.includes('https://youtu.be/XVCwzwxdHuA'.toLowerCase()) ||
-				text.includes('https://www.youtube.com/watch?v=XVCwzwxdHuA'.toLowerCase()) ||
-				text.includes('https://m.youtube.com/watch?v=XVCwzwxdHuA'.toLowerCase())
-			) {
+			if ([
+				'https://youtu.be/Efrlqw8ytg4',
+				'https://www.youtube.com/watch?v=Efrlqw8ytg4',
+				'https://m.youtube.com/watch?v=Efrlqw8ytg4',
+			
+				'https://youtu.be/XVCwzwxdHuA',
+				'https://www.youtube.com/watch?v=XVCwzwxdHuA',
+				'https://m.youtube.com/watch?v=XVCwzwxdHuA',
+
+				'https://open.spotify.com/track/3Cuj0mZrlLoXx9nydNi7RB',
+				'https://open.spotify.com/track/7anfcaNPQWlWCwyCHmZqNy',
+				'https://open.spotify.com/track/5Odr16TvEN4my22K9nbH7l',
+				'https://open.spotify.com/album/5bOlxyl4igOrp2DwVQxBco',
+			].some(url => text.includes(url))) {
 				claimAchievement('brainDiver');
 			}