Secrets of online marketing: cookie syncing, the real world

This is a continuation of my previous blog post on cookie syncing, this time a real world example of cookie syncing as promised.

The actors:

Bluekai is a real world data collector. Very basically stated, MediaMath collects "users" who are planning to travel soon.

Mediamath is a (real time) trading platform, which allows advertisers to bid and buy advertisement space (banners) in real time.

Kayak is a travel site, where you can for example search for a flight from Amsterdam to London.

Now Bluekai and Mediamath have partnered to enable advertisers to target people about to travel. So, for example, if I were an advertiser for car rentals in Berlin, then I could use the services of MediaMath to show a banner to anybody that was interested in flying to Berlinin the coming two weeks.

And of course, Kayak.com has partnered with Bluekai to allow Bluekai to collect users who are about to travel and sell them off to advertisers.

And so the scene is set.

Under the hood:

Let's take a look at Kayak.com and what happens when you search for a flight from Londong to Berlin in the coming week. The goings on are a bit murky and mixed up but basically, a cookie sync is occuring. By the way, you can check all of what I list below for yourself using only your browser (for example Firefox with the firebug extension).

First of all when viewing the page with results for flights to Berlin, underwater the following pixel is making a call (unbeknownst to you):

http://pixel.mathtag.com/event/js?mt_id=10355&v1=28501&v2=9109&v3=&s1=XtDALg-AAABLlPip5c-45-fR5SVw&s2=6-Z3qLeFEKCCRzisN3PWrE&s3=London,%20United%20Kingdom&s4=Berlin,%20Germany&s5=20110309&s6=20110312&s7=,United%20Kingdom&s8=,Germany&s9=LON&s10=BER

Mathtag.com belongs to MediaMath and this pixel is actually a pixel "container" in that this one call triggers a whole lot of otheer pixels to be dynamically loaded onto the page:

http://ad.yieldmanager.com/pixel?id=729659&id=729660&
id=729661&id=268681&id=86164&t=&id=791551&id=791552&
id=791555&id=791556&id=791557&id=791558&id=791559&
id=1072039&id=1072040&t=2

http://pixel.mathtag.com/event/img?mt_id=101067&mt_adid=100224&v1=28501&v2=9109=&v3=&s1=XtDALg-AAABLlPip5c-45-fR5SVw&s2=6-Z3qLeFEKCCRzisN3PWrE&s3=London,%20United%20Kingdom&s4=Berlin,%20Germany&s5=20110309&s6=20110312&s7=,United%20Kingdom&s8=,Germany&s9=LON&s10=BER

http://designbloxlive.com/retargetTracking2.php?cid=125_378&passcode=LON::BER

http://pixel.mathtag.com/event/img?mt_id=101261&mt_adid=100224&v1=28501&v2=9109=&v3=&s1=XtDALg-AAABLlPip5c-45-fR5SVw&s2=6-Z3qLeFEKCCRzisN3PWrE&s3=London,%20United%20Kingdom&s4=Berlin,%20Germany&s5=20110309&s6=20110312&s7=,United%20Kingdom&s8=,Germany&s9=LON&s10=BER

http://action.mathtag.com/mm//KAYA//mrt?nm=FliSerR&v1=28501&v2=9109=&v3=&s1=XtDALg-AAABLlPip5c-45-fR5SVw&s2=6-Z3qLeFEKCCRzisN3PWrE&s3=London,%20United%20Kingdom&s4=Berlin,%20Germany&s5=20110309&s6=20110312&s7=,United%20Kingdom&s8=,Germany&s9=LON

http://bs.serving-sys.com/BurstingPipe/ActivityServer.bs?cn=as&ActivityID=90459&Value=&OrderID=&ProductID=6-Z3qLeFEKCCRzisN3PWrE&ProductInfo=XtDALg-AAABLlPip5c-45-fR5SVw&ns=1

http://px.admonkey.dapper.net/PixelMonkey?adId=kayakhotels&format=image&useReferrer=1&origin_city=London,%20United%20Kingdom&origin_state=,United%20Kingdom&dest_city=Berlin,%20Germany&dest_state=,Germany

http://tags.bluekai.com/site/1675

Ok, so one pixel triggers an avalanche of other pixels! But for the course of this blog, we'll focus on only the last pixel namely:

http://tags.bluekai.com/site/1675

This is a cookie sync call! Here we have MediaMath passing along the id it has stored in a cookie on your pc (1675) along to Bluekai so that Bluekai can now store the MediaMath id alongs with it's own id. This allows BlueKai to sell all of it's profile data (you are planning to fly to Berlin) to any advertiser (in this case via MediaMath).

Note that BlueKai has it's own pixel call (multiple actually) to place cookies on your browser with Bluekai ids. This allows BlueKai to sell your profile data to other parties besides only MediaMath of course. An example of such a pixel call is:

http://tags.bluekai.com/site/83?ret=html&phint=Product%3Dflight&phint=Class%3De&phint=DepartDate%3DMon%20Mar%2021%2000%3A00%3A00%20EDT%202011&phint=DepartureCity%3DLHR&phint=Destination%3DBER&phint=__bk_t%3DKAYAK%20Search%20Results&limit=10&r=301914

It should also be noted that although these parties are building up a profile about "you", they are not storing any information of direct personal information. Basically they are lumping you together into a category (with an id) that indicates you are interested in flying to Berlin. So in a sense it is "anonymous" although the cookie with the id is still on your pc (not so anonymous).