# Overview

Instructors may use Amazon Web Services, a university domain, or any other domain service to add a custom domain.

{% hint style="info" %}
Adding your JupyterHub to a registered domain is necessary for running it in HTTPS.
{% endhint %}

This demonstration uses [Google Domains](https://domains.google/). If you have an existing custom domain, you may add the lab as a sub-domain as done here. This tutorial assumes an existing domain has been registered with Google Domains. Visit the [Google Domains Learning Center](https://domains.google/learning-center/) for more information on this.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-jupyter.davidjachochavez.org/optional-add-a-custom-domain/overview.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.