Ads.txt

Ads.txt Instructions

The purpose of ads.txt is to prevent internet fraud by allowing buyers to verify that sellers are authorized by the publisher to sell that specific inventory.  Ads.txt implementation is required to link your domain to buyers / demand.

Our ads.txt file MUST be placed and remain on your domain (example: http://domain.com/ads.txt and https://domain.com/ads.txt), for BOTH approvals by exchange partners AND ongoing buying and displaying (filling) of ads on your site.  If our ads.txt file is not implemented, or is removed, ad fill rate will be very low, and most ads will not display on the site.

Additional Information: If you are just learning about Ads.txt, step-by-step instructions for creating a new ads.txt file for your site are available in this informative video and on the IAB TECH LAB Ads.txt page. 

Ads.txt Validator: Use an ads.txt validator to confirm that your file has been formatted properly once live.  We recommend copying your live ads.txt url and pasting it into the “Enter ads.txt URL” section of https://adstxt.guru/validator/.  This tool will highlight any errors so that you can find/fix them quickly and efficiently.

Visit our Ads.txt Troubleshooting Guide for additional information on common reasons your ads.txt file may not be programmatically readable.

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*Replace “​INSERT_UDM_PID_HERE” ​with your four-digit Underdog Media Publisher ID. You can find your publisher ID in the upper left corner of your publisher dashboard.

 

### UDM START ###

udmserve.net, INSERT_UDM_PID_HERE, DIRECT, 0cf60ed62b5f3e40

33across.com, 0015a00002y4bCYAAY, RESELLER, bbea06d9c4d2853c
adyoulike.com, 1f301d3bcd723f5c372070bdfd142940, RESELLER, 4ad745ead2958bf7
amxrtb.com, 105199520, RESELLER
amxrtb.com, dW5kZXJkb2dtZWRpYS5jb20, RESELLER
appnexus.com, 10239, RESELLER, f5ab79cb980f11d1
appnexus.com, 12290, RESELLER, f5ab79cb980f11d1
appnexus.com, 1610, RESELLER, f5ab79cb980f11d1
appnexus.com, 7874, RESELLER, f5ab79cb980f11d1
appnexus.com, 9538, RESELLER, f5ab79cb980f11d1
contextweb.com, 508738, RESELLER, 89ff185a4c4e857c
contextweb.com, 561516, RESELLER, 89ff185a4c4e857c
conversantmedia.com, 100141, RESELLER
google.com, pub-7658516276795928, RESELLER, f08c47fec0942fa0
indexexchange.com, 191503, RESELLER, 50b1c356f2c5c8fc
indexexchange.com, 191730, RESELLER, 50b1c356f2c5c8fc
indexexchange.com, 194564, RESELLER, 50b1c356f2c5c8fc
iqzone.com, IQ272, RESELLER
lijit.com, 253233, RESELLER, fafdf38b16bf6b2b
lijit.com, 260380, RESELLER, fafdf38b16bf6b2b
lijit.com, 397546, RESELLER, fafdf38b16bf6b2b
lijit.com, 456186, RESELLER, fafdf38b16bf6b2b
loopme.com, 11436, RESELLER, 6c8d5f95897a5a3b
loopme.com, 11575, RESELLER, 6c8d5f95897a5a3b
loopme.com, 11712, RESELLER, 6c8d5f95897a5a3b
media.net, 8CUG6HNM2, RESELLER
media.net, 8CUV34PJ4, RESELLER
mediafuse.com, 720, RESELLER
mediafuse.com, 780, RESELLER
onetag.com, 75601b04186d260, RESELLER
onetag.com, 7e9adb1ccca08d0, RESELLER
openx.com, 537100188, RESELLER, 6a698e2ec38604c6
openx.com, 537120563, RESELLER, 6a698e2ec38604c6
openx.com, 537124574, RESELLER, 6a698e2ec38604c6
openx.com, 558758631, RESELLER, 6a698e2ec38604c6
openx.com, 559680764, RESELLER, 6a698e2ec38604c6
pubmatic.com, 156423, RESELLER, 5d62403b186f2ace
pubmatic.com, 156505, RESELLER, 5d62403b186f2ace
pubmatic.com, 157743, RESELLER, 5d62403b186f2ace
pubmatic.com, 158355, RESELLER, 5d62403b186f2ace
pubmatic.com, 159463, RESELLER, 5d62403b186f2ace
pubmatic.com, 159955, RESELLER, 5d62403b186f2ace
rubiconproject.com, 16414, RESELLER, 0bfd66d529a55807
rubiconproject.com, 17280, RESELLER, 0bfd66d529a55807
rubiconproject.com, 19396, RESELLER, 0bfd66d529a55807
rubiconproject.com, 21642, RESELLER, 0bfd66d529a55807
rubiconproject.com, 23844, RESELLER, 0bfd66d529a55807
rubiconproject.com, 24042, RESELLER, 0bfd66d529a55807
rubiconproject.com, 24434, RESELLER, 0bfd66d529a55807
rubiconproject.com, 26184, RESELLER, 0bfd66d529a55807
seedtag.com, 66c36c3b6fea490007754ec5, RESELLER
sharethrough.com, AXS5NfBr, RESELLER, d53b998a7bd4ecd2
sharethrough.com, Z7D3ygNP, RESELLER, d53b998a7bd4ecd2
smartadserver.com, 3050, RESELLER
smartadserver.com, 3056, RESELLER
smartadserver.com, 4575, RESELLER, 060d053dcf45cbf3
sonobi.com, 5fa6044d8d, RESELLER, d1a215d9eb5aee9e
sovrn.com, 253233, RESELLER, fafdf38b16bf6b2b
themediagrid.com, CIQERY, RESELLER, 35d5010d7789b49d
themediagrid.com, SYMTFD, RESELLER, 35d5010d7789b49d
triplelift.com, 12503, RESELLER, 6c33edb13117fd86
video.unrulymedia.com, 2439829435, RESELLER
video.unrulymedia.com, 2997140015, RESELLER
video.unrulymedia.com, 5336134699710583737, RESELLER
xandr.com, 4009, RESELLER, f5ab79cb980f11d1
zetaglobal.net, 998, RESELLER
### UDM END ###

 

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