engine.adzerk.net is an alias for e-prod-alb-s105-us-east-1-01l.adzerk.net.
e-prod-alb-s105-us-east-1-01l.adzerk.net has address 18.207.51.239
e-prod-alb-s105-us-east-1-01l.adzerk.net has address 52.202.190.133
e-prod-alb-s105-us-east-1-01l.adzerk.net has address 98.89.79.148