---
title: "Why am I unable to introspect with Apollo Router?"
canonical: "https://support.apollographql.com/space/ETKB/646676483/Why%20am%20I%20unable%20to%20introspect%20with%20Apollo%20Router%3F"
format: markdown
---
By default, the Apollo Router does *not* resolve [introspection](https://www.apollographql.com/docs/router/configuration/overview#introspection) queries. This default also applies to [Apollo Router images](https://www.apollographql.com/docs/router/containerization/overview) in our [repository](https://github.com/apollographql/router/blob/main/dockerfiles/router.yaml). As described in our [dev docs](https://www.apollographql.com/docs/router/configuration/overview/#introspection), you enable introspection in your router's `router.yaml` file:

```
# Do not enable introspection in production!
supergraph:
  introspection: true
```

If you're configuring an image, override the base image's configuration file with the `--mount` command. You can find more information about overriding the Router's configuration with Docker [in our dev docs](https://www.apollographql.com/docs/router/containerization/docker#override-the-configuration).