# How to block search engines in the nginx

If you have three layered development structures (*local dev, remote staging, remote production*) like me, you want to search engines index your staging server. It is easy to prevent search engines from indexing your `Nginx` web server.

```nginx
add_header X-Robots-Tag "noindex, nofollow, nosnippet, noarchive";
```

Add the line above in the server block `virtualhost` file and Google forget the way to go to your server.