#busuu.com/ads.txt 

OWNERDOMAIN=chegg.com 

#CONTACT=sbm@chegg.com 

#Chegg TAG Certification ID: b09c3d4e687968fe 

#A9 

aps.amazon.com, 3094, DIRECT #video, banner 

#AppNexus 

appnexus.com, 3492, DIRECT, f5ab79cb980f11d1 

#Google 

google.com, pub-2633225525924568, DIRECT, f08c47fec0942fa0
google.com, pub-4524831071718588, DIRECT, f08c47fec0942fa0

#Index 

indexexchange.com, 183916, DIRECT 

#MediaGrid 

themediagrid.com, 9JRWF7, DIRECT, 35d5010d7789b49d 

#OpenX 

openx.com, 540324764, DIRECT, 6a698e2ec38604c6 

#Pubmatic

pubmatic.com, 156821, DIRECT, 5d62403b186f2ace 

#Rubicon 

rubiconproject.com, 13342, DIRECT, 0bfd66d529a55807 

#TripleLift 

triplelift.com, 4295, DIRECT, 6c33edb13117fd86 

#YahooSSP 

yahoo.com, 55996, DIRECT, e1a5b5b6e3255540