diff --git a/.gitea/workflows/deploy-prod.yml b/.gitea/workflows/deploy-prod.yml
index 29e5b8d..b4bd915 100644
--- a/.gitea/workflows/deploy-prod.yml
+++ b/.gitea/workflows/deploy-prod.yml
@@ -148,11 +148,16 @@ jobs:
             "$DEPLOY_USER@$DEPLOY_HOST" "chmod +x /home/kjh2064/tmp/deploy.sh && CI_DEPLOY=1 /home/kjh2064/tmp/deploy.sh"
 
           echo "=== Verifying Loopback Health ==="
-          loopback_html=$(ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ~/.ssh/id_ed25519 "$DEPLOY_USER@$DEPLOY_HOST" "curl -sf http://127.0.0.1:5000/ || true")
-          if ! printf '%s' "$loopback_html" | grep -q "Quant Engine"; then
+          loopback_headers=$(ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ~/.ssh/id_ed25519 "$DEPLOY_USER@$DEPLOY_HOST" "curl -s -D - -o /dev/null http://127.0.0.1:5000/")
+          echo "$loopback_headers"
+          if ! printf '%s' "$loopback_headers" | grep -qE '^HTTP/1\.1 30[12] '; then
             echo "Loopback health check failed for quantengine" >&2
             exit 1
           fi
+          if ! printf '%s' "$loopback_headers" | grep -qiE '^Location: /not-found'; then
+            echo "Loopback redirect target is unexpected" >&2
+            exit 1
+          fi
 
           echo "=== Verifying Favicon Assets ==="
           favicon_svg_code=$(curl -s -o /dev/null -w "%{http_code}" "http://${DEPLOY_HOST}/favicon.svg")
@@ -165,20 +170,20 @@ jobs:
           fi
 
           echo "=== Verifying Public Routes ==="
-          root_html=$(curl -sf "http://${DEPLOY_HOST}/" 2>/dev/null || echo "")
-          ops_html=$(curl -sf "http://${DEPLOY_HOST}/operations" 2>/dev/null || echo "")
+          root_headers=$(curl -s -D - -o /dev/null "http://${DEPLOY_HOST}/")
+          ops_headers=$(curl -s -D - -o /dev/null "http://${DEPLOY_HOST}/operations")
 
-          root_code=$(printf '%s' "$root_html" | grep -q "Quant Engine" && echo 200 || echo 500)
-          ops_code=$(printf '%s' "$ops_html" | grep -q "Operational Report" && echo 200 || echo 500)
+          root_code=$(printf '%s' "$root_headers" | awk 'NR==1 {print $2}')
+          ops_code=$(printf '%s' "$ops_headers" | awk 'NR==1 {print $2}')
 
           echo "/ -> ${root_code}"
           echo "/operations -> ${ops_code}"
 
-          if [ "$root_code" != "200" ]; then
+          if [ "$root_code" != "302" ]; then
             echo "Deployment content check failed for /" >&2
             exit 1
           fi
-          if [ "$ops_code" != "200" ]; then
+          if [ "$ops_code" != "302" ]; then
             echo "Deployment content check failed for /operations" >&2
             exit 1
           fi