Can anyone do that type of redirect backlink?

[stevencounts]

I found some redirect backlink like that. https://b.hatena.ne.jp/-/redirect?code=77502f725e506b555e436b344d206b3277503f325e504f59&location_id=374814544&signature=6df0865993e791a8510fb5532d5000d365528bc155da793974d1650f9f952280

And they are index it within some minutes. How it's possible and How Can I do that?



If anyone know this tricks please explain me

thanks

 

[jennykumar]

that domain or subfolder/subdomain is hacked and redirected. simple.

 

[stevencounts]

that domain or subfolder/subdomain is hacked and redirected. simple.

Ok, It's fine. But how they are index it instant?