There are a significant number of missing tracking domains, identified by their presence in the DAA's YourAdChoices tool.
Some also serve non-tracking related content; I've flagged the obvious ones.
Domain
Company
Serves Content?
tynt.com
33Across
No
alphonso.tv
LG Ads
No
apolloprogram.io
Apollo Program
No
artsai.com
artsai
No
audrte.com
AudienceRate
No
ad.gt
Audigent
No
app.link
Branch
No* (Deep Links)
britepool.com
Britepool
No
ccgateway.net
Carbon DMP
No
chicoryapp.com
Chicory
No
clickagy.com
Clickagy
No
cognitivlabs.com
Cognitiv
No
fwmrm.net
Comcast
No
havasedge.com
Havas
No
wsod.com
IHS Markit
No
innovid.com
Innovid
No
iqm.com
IQM
No
brand-display.com
Knorex
No
knorex.com
Knorex
No
marchex.io
Marchex
No
4cinsights.com
MediaOcean
No
api.choice.microsoft.com
Microsoft
Yes
mediaiqdigital.com
MiQ
No
ncaudienceexchange.com
NC Audience Exchange
No
mmtro.com
Numberly
No
parrable.com
Parrable
No
ct.pinterest.com
Pinterest
Yes
www.tentaculos.net
Retargetly
No
retargetly.com
Retargetly
No
samba.tv
Samba.tv
No
www.swpsvc.com
Swoop
No
optout.go.com
Disney
Yes
thrtle.com
Throtle
No
adap.tv
Verizon Media
No
guce.yahoo.com
Verizon Media
Yes
vindicosuite.com
Amazon?
No
cdnwidget.com
Wunderkind/BounceX
No
disqus.com
Zeta Interactive
Yes
optout.pcmag.com
Ziff Davis
Yes
optout.extremetech.com
Ziff Davis
Yes
optout.ign.com
Ziff Davis
Yes
optout.askmen.com
Ziff Davis
Yes
optout.1up.com
Ziff Davis
Yes
optout.toolbox.com
Ziff Davis
Yes
optout.ugo.com
Ziff Davis
Yes
optout.techbargains.com
Ziff Davis
Yes
optout.ziffdavis.com
Ziff Davis
Yes
optout.zdbb.net
Ziff Davis
No
Steps to reproduce:
Open https://optout.aboutads.info in a Firefox Private Window (applies Disconnect rules for Enhanced Tracking Protection)
Perform the "Third Party Cookie Check"
Filter network traffic for transferred-larger-than:0 -domain:aboutads.info -domain:aboutads.net -domain:gstatic.com Explanation: excludes domains already blocked by Firefox ETP, the host domain and Google Fonts embeds.
Download/copy the .har file of network requests and run cat har.json | jq ".log .entries [] | .request .headers [] | select(.name==\"Host\") | .value" -r
There are a significant number of missing tracking domains, identified by their presence in the DAA's YourAdChoices tool.
Some also serve non-tracking related content; I've flagged the obvious ones.
Steps to reproduce:
transferred-larger-than:0 -domain:aboutads.info -domain:aboutads.net -domain:gstatic.comExplanation: excludes domains already blocked by Firefox ETP, the host domain and Google Fonts embeds.cat har.json | jq ".log .entries [] | .request .headers [] | select(.name==\"Host\") | .value" -r