# URL of your site

We provide you with a subdomain for your homepage. And you can customise this simply by changing your username.

### Change your username

Your username is represented in the URL of your blog - `https://{username}.letterpad.app`. If you register with Google or Github, the username is your Google ID or Github ID.

We cannot use the username from Google or Github because it can create duplicates. For eg. if your email in gmail is `foo@gmail.com` and a different user used `foo@hotmail.com` in Github, although the username `foo` is common but they are two different users.

So you should change the username by yourself. However, if you register using an email and password, you can setup your username from the registration form itself.

To change the username, go to Profile => Basic Information => Username

![](/files/OmrCpfpTZ7Fx25THhZmR)

The validate button is to check if this username exists and if so, it's already saved. And now you can visit `https://username.letterpad.app` to see your blog.


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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.letterpad.app/setup/url-of-your-site.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.