Last month, Google added the Display Network tab to AdWords and announced the biggest-ever upgrade to its contextual engine, which enables it to optimize Google Display Network campaigns down to the keyworld level.

Now, Google has announced that its Display Campaign Optimizer is out of beta and available to all through AdWords. It was previously only available to big advertisers with high conversion volumes, but now anyone can use it.

“The new and improved Display Campaign Optimizer now has the same low conversion requirement (15/month) as Conversion Optimizer,” Google says. “This means you can simply opt-into DCO on any campaign running on Conversion Optimizer and take advantage of the added benefit of more conversions!”

Google, as it makes a name for itself in the self-driving car space, considers the Display Campaign Optimizer the “GDN’s Self-Driving Car”. The company says that since launching the beta in 2010, it has become one of its most popular automation tools for those who had access to it.

“In addition to fully automating your targeting and bidding, it uses a variety of signals like context, demographics and interest categories to find additional conversions across our vast AdSense publisher network – all at your desired CPA,” Google explains.

Google points to a mini-case study of Dale Carnegie, which was able to increase conversions by 308% in six months, using the tool.

On a semi-related note, Google has been talking about the ingredients of AdWords quality score.