diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 000000000..69271d15a
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,32 @@
+name: CodeQL
+
+on:
+  push:
+    branches: [gh-pages]
+  pull_request:
+    branches: [gh-pages]
+
+permissions:
+  contents: read
+  security-events: write
+
+jobs:
+  analyze:
+    name: Analyze ${{ matrix.language }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [actions, javascript-typescript, ruby]
+
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
+        with:
+          persist-credentials: false
+
+      - uses: github/codeql-action/init@8aad20d150bbac5944a9f9d289da16a4b0d87c1e
+        with:
+          languages: ${{ matrix.language }}
+
+      - uses: github/codeql-action/analyze@8aad20d150bbac5944a9f9d289da16a4b0d87c1e