diff --git a/assets/docker-build-image.yml b/assets/docker-build-image.yml
deleted file mode 100644
index 205391e..0000000
--- a/assets/docker-build-image.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: Build docker image
-
-on:
-  push:
-    branches:
-      - develop
-      - 'feature/**'
-      - main
-  release:
-    types: [published]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-
-    - name: Build
-      id: build-action
-      uses: UN-OCHA/actions/drupal-docker-build@main
-      with:
-        aws_access_key_id: ${{ secrets.ECR_AWS_ACCESS_KEY_ID }}
-        aws_secret_access_key: ${{ secrets.ECR_AWS_ACCESS_KEY_ID }}
-        docker_registry_url: public.ecr.aws
-        docker_registry_path: /unocha/
-        docker_image: ai-summarize-site
-        docker_username: ${{ secrets.ECR_AWS_ACCESS_KEY_ID }}
-        docker_password: ${{ secrets.ECR_AWS_SECRET_ACCESS_KEY }}
-        ecr_github_token: ${{ secrets.ECR_GITHUB_TOKEN }}
-        ecr_jenkins_token: ${{ secrets.JENKINS_ECR_TOKEN }}
-        slack_bot_token: ${{ secrets.SLACK_BOT_TOKEN }}
-        slack_channel_name: ${{ secrets.SLACK_CHANNEL }}
diff --git a/assets/robots.txt.append b/assets/robots.txt.append
index e40cd97..02f27d5 100644
--- a/assets/robots.txt.append
+++ b/assets/robots.txt.append
@@ -1 +1,14 @@
 # Sitemap
+
+# Other people's AI.
+User-agent: GPTBot
+Disallow: /
+
+User-agent: ChatGPT-User
+Disallow: /
+
+User-agent: Google-Extended
+Disallow: /
+
+User-agent: CCBot
+Disallow: /