diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 26ccd8e..6e8de37 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -22,6 +22,21 @@ jobs:
         run: |
           npm ci
           npx quartz build
+          echo "=========================================="
+          echo "1. 현재 폴더에 뭐가 생겼나?"
+          ls -F
+          echo "------------------------------------------"
+          echo "2. 'public' 폴더가 진짜 있나?"
+          if [ -d "public" ]; then
+            echo "✅ public 폴더 확인됨!"
+            ls -R public | head -n 20 # 너무 많을 수 있으니 상위 20개만
+          else
+            echo "❌ public 폴더가 없습니다!"
+          fi
+          echo "------------------------------------------"
+          echo "3. index.html 파일은 어디 숨었나?"
+          find . -name "index.html"
+          echo "=========================================="
 
       - name: Deploy to GCE
         uses: appleboy/scp-action@master