> For the complete documentation index, see [llms.txt](https://blog.ak1103dev.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://blog.ak1103dev.com/master.md).

# Introduction GitBook

first page of gitbook

This is a my first page of GitBook. GitBook is a modern documentation platform. There are many document of library or framework that use GitBook.

## GitBook Structure

one **account** has many **spaces**

one **space** has many **pages**

one **space** has many **groups**

one **group** has many **pages**

## **How to write blog with GitBook**

I select GitBook because GitBook has rich text editor that modern and useful. In additional, I prefer write code block in my blog. I almost write about software development, it must to write some code in a page.

I want to custom domain name. Now I have Medium account, but I cannot custom domain name in Medium.

You can custom domain name in 5 step following:

![1. click Advanced](https://1868523952-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2wvxA6iM7seQpwUhgc%2F-M2xL1GbHOQn8HiY3auk%2F-M2xVK7uQ58qpXRD3L1M%2FScreen%20Shot%202563-03-21%20at%2021.28.45.png?alt=media\&token=902ad063-6b3c-40c4-b246-7db626ceff0b)

![2. click Custom Domain and click Configure button](https://1868523952-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2wvxA6iM7seQpwUhgc%2F-M2xL1GbHOQn8HiY3auk%2F-M2xVQh6QEtue_eSQw0K%2FScreen%20Shot%202563-03-21%20at%2021.28.56.png?alt=media\&token=973cce10-c283-41d3-8d21-eb7ce08c77fe)

![3. type your domain and click Next button](https://1868523952-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2wvxA6iM7seQpwUhgc%2F-M2xL1GbHOQn8HiY3auk%2F-M2xVmiXajJ4vpoZwNHs%2FScreen%20Shot%202563-03-21%20at%2021.29.12.png?alt=media\&token=97d751e1-35eb-482e-a9b3-3e15cb6ccd5e)

![4. set CNAME hosting.gitbook.com in your DNS management and click Next button](https://1868523952-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2wvxA6iM7seQpwUhgc%2F-M2xL1GbHOQn8HiY3auk%2F-M2xVw0GOEPv_Wdwgcw1%2FScreen%20Shot%202563-03-21%20at%2021.29.24.png?alt=media\&token=c0eff92c-5bb0-4d9a-ba72-3f5c5112865d)

![5. when DNS server config is success, it's show the status follow the image](https://1868523952-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-M2wvxA6iM7seQpwUhgc%2F-M2xL1GbHOQn8HiY3auk%2F-M2xWLMu4xw-itJYTZhZ%2FScreen%20Shot%202563-03-21%20at%2021.29.31.png?alt=media\&token=04874c9b-ae56-4b2c-a2f2-8af7732e8a24)

It's easy to setup your blog with GitBook

I wish the page is helpful