How To Rank YouTube Video by Pingback links.

[anhtt265]

Hi. All

I'm trying to rank some Youtube video for new keywords.
I used Ahrefs to analyze my competitor backlinks and I saw that he used a lot of pingback links.
His YouTube videos almost is on the top first page of Google (not only YouTube).

You can have a look the below image for reference of my competitor pingback link.



or http://i.imgur.com/41lGO1O.png

I'm wondering that How can he do like this? How can he send pingback to hundred of sites.
I  purchased GSA Ser software but pingback function of GSA doesn't support pingback with anchor texts. My competitor pingback used diversity anchor texts for his anchor texts.

Are anyone familiar to building backlink by pingback? I need a help analyze and follow my competitor strategies.

Thanks

@PS: I also attached a backlink file of my competitors from Ahrefs.com