How can I set a redirect from *.github.io to *.github.io/Jalpc?

[y0ny0ns0n]

I saw that entering to https://jarrekk.github.io prints "This page has moved to Jalpc" and redirect to https://jarrekk.github.io/Jalpc. Is that a feature of Jekyll plugin or any other functionality? How can I using that?

[y0ny0ns0n]

Temporarily I'm using Jekyll's redirect plugin at my *.github.io repository. add below code to index.html

---
permalink: /
redirect_to: "https://*.github.io/Jalpc"
---

But I think jarrekk using other method.

[Skyflash]

https://guides.github.com/features/pages/

Your forked repository already works on https://y0ny0ns0n.github.io/Jalpc/
If you want a custom domain, you have to set a CNAME record in the repository and set the custom domain in repository Settings