diff --git a/.github/workflows/lighthouse.yml b/.github/workflows/lighthouse.yml
new file mode 100644
index 0000000000..80b8ef9f5d
--- /dev/null
+++ b/.github/workflows/lighthouse.yml
@@ -0,0 +1,49 @@
+name: Lighthouse report
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  lighthouse:
+    if: github.actor != 'dependabot[bot]'
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout PR code
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+          repository: ${{ github.event.pull_request.head.repo.full_name }}
+
+      - name: Setup Node.js with npm cache
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22.x'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm install @unlighthouse/cli puppeteer
+
+      - name: Wait for Netlify preview to be live
+        run: |
+          PREVIEW_URL="https://deploy-preview-${{ github.event.pull_request.number }}--expressjscom-preview.netlify.app"
+          echo "PREVIEW_URL=$PREVIEW_URL" >> "$GITHUB_ENV"
+          for i in {1..2}; do
+            if curl -s --head "$PREVIEW_URL" | grep "200 OK" > /dev/null; then
+              echo "Preview is live!"
+              break
+            fi
+            echo "Waiting for Netlify to deploy... ($i/2)"
+            sleep 10
+          done
+
+      - name: Unlighthouse assertions and client
+        run: npx unlighthouse-ci --site "$PREVIEW_URL" --mobile --urls /en/5x/api --samples 1 --disable-dynamic-sampling --disable-sitemap --disable-robots-txt
+
+      - name: 📄 Log results
+        run: cat ./.unlighthouse/ci-result.json