How can I change www.website.com to http://bit.ly/2RGpaaE root url in laravel 5.7?

How can I change www.website.com to http://bit.ly/2RGpaaE root path? So anytime I redirect to any URL I want my root path http://bit.ly/2RGpaaE to stay unchanged in Laravel 5.7

via Chebli Mohamed