TIP: Do not submit redirect URL - example of redirect URL:
https://bit.ly/35RGhKs
https://wpthemeplugin.com/wpmm-bestbonus/
URL that redirects to another page URL often gets banned by Wiki sites, if your domain is banned by Wiki sites then future submission of that domain will be failed.

TIP: To submit Youtube video, use the whole link instead of shortlink.
Correct link: https://www.youtube.com/watch?v=ST6vs4JXGV4
Incorrect link: https://youtu.be/ST6vs4JXGV4 and any other type or Youtube URL aside of the correct one above