Once upon a time, I had a number of AdWords contextual network campaigns humming along quite nicely. Then along came the Google serpent and offered me a bite of the Display Conversion Optimizer. It did not come with a guarantee of working, but the promise was that many of my competitors in similar verticals had seen large upticks in volume at good CPA’s. So, I said sure, let’s give it a go. I think I wish I hadn’t. The DCO has made a crack addict out of me, and now I can’t quit it. I hope to God Google never stops supporting the Display Conversion Optimizer, or I will surely be SOL. The following are my impressions, backed by both my numbers and my gut.
What Is It?
The Google Display Conversion Optimizer (or DCO for short) is a new option for heavy spending advertisers to start new Contextual Network campaigns. What it does is attempt to automatically find new websites for your placements based off the historical performance of your Display URLs on the Google AdSense network. Your Google Representative can probably provide you with a worksheet of eligible Display URLs and recommended CPA’s to try out with the DCO. Thus, if your Display URL structure is weak, you might have a bad time with the DCO. Note that not any old person can go and set up a DCO campaign in their account; you have to ask your Google Rep to get opted in. If you do not have a Google Rep, you probably have a bad chance of getting opted in to the DCO. However, if you have been opted, in, PPC Hero has a good blog post on what to do for DCO Implementation.
Pros of the DCO
- Gain effective volume from sites you wouldn’t have thought of that have next-to-no content on them, or gibberish content. There are sites that might be a logical fit for you in terms of theme, but Google’s contextual network would never have really picked up on them because of their (lack of) relevant seeming content. This doesn’t mean the sites are a bad fit, though. Likewise, you probably never would have picked up on these sites as managed placements alone, either, because often times that would be too broad a targeting method.
- If you aren’t the brainstormiest of search marketers, the DCO goes out and finds places where your ads would not have otherwise been running. This is not just referring to the aforementioned point. This is to say it will find other contextual themes that you might not have thought of. The double edge of this sword, however, is that if you have already done a fantastic and thorough job, the DCO might have a hard time finding more nuggets that make sense, and cannibalize your existing nuggets
- On the whole, you may be able to get a lot of incremental volume from the DCO. However, this was not exactly my experience. Ultimately the DCO took over from more ROI positive contextual network campaigns. Though conversion volume improved greatly, margins shrunk so much that the net effect was more or less a wash. Google – 1, Advertiser – 0.
Cons of the DCO
- My biggest complaint about the DCO is a lack of control. You are basically at the mercy of the CPA you set, and CPC’s can vary greatly from day to day. This can mean a less than desirable CPA for you.
- Cannibalization is an enormous issue with the DCO. Many of my existing contextual campaigns have been, for all intents and purposes, obliterated. This is why the DCO is like crack. One you start, you can’t stop, because you have nothing left to fall back on. The only control you are left with is negative placement optimization, but no ability to adjust bids at a placement level. In an attempt to promote the best performing campaigns, I have added negatives to the DCO or my original contextual campaigns on a case-by-case basis, letting each placement reside in the campaign where it has performed best.
- DCO is still in beta. This means there can be technical issues sometimes, and because Google has a stronghold (dare I say a monopoly) on this contextually-relevant sort of market, advertisers are basically at Google’s mercy to make it right when these occur
- DCO is probably not going to work well for you if you have a weak Display URL structure, unless all of your ads are extremely relevant to one sort of theme.
The Numbers
While I cannot publish exact numbers or where they are from, I can say that my overall contextual network conversion volume by month has decreased since implementing the DCO. Furthermore, my acquisition cost has increased on a monthly basis. While my numbers contain other hiccups and nuances to be sure, I have no concrete data thus far which indicates that the implementation of the DCO was a winning decision. Any gains in certain pockets or places have been offset by increase in acquisition cost and decrease in control (and thus efficacy)
My Conclusion
I still have mixed emotions about the DCO. It seems plausible to me that my campaigns could one day exceed the gross-profit performance of my “old” campaigns, but that has not happened yet. Furthermore, as a performance marketer, I detest the hands-off approach that has to be taken with regards to the DCO. If you do decide to try the DCO, I would recommend not to be too stingy with your starting CPA bids. Furthermore, when you do make changes to those bids, make them meaningful ones. If you do not give the automated tool enough wiggle room to play with, things may never get off the ground. Watch your placements closely, and add negatives on a daily basis as needed (as soon as data is available for viewing) if you are spending in the thousands a day.









