Banner ads get a bad rap, according to Google Media Lab's Bob Arnold. To help dispel the myths, she shares a few insights on how smart creative strategies can improve banner efficiency and performance, using recent creative work from Google for examples.

September 2015

Banner ads have been around since 1994, almost as long as the consumer internet. But let's face it — we've been there and done that. So marketers today often brush them aside in favour of formats like native and in-app mobile ads.

However at Google Media Lab (the in-house team responsible for planning, buying and placing media for Google), we've found that cross-screen banner ads can drive brand lift. When we looked at the results of our U.S. campaigns for 2014, we saw that banners - not video or more complex display formats - accounted for 82% of the unique reach of our tier one campaigns (those with large investments).

As with any marketing campaign, the success of a banner campaign comes down to creative quality. The best banner ads are eye-catching, timely and personalised. And the key to improving our own banner success rate is the often overlooked art of creative testing. This article looks at what we've learned about banner campaigns at Google, including the key creative principles behind our successful display campaigns and the benefits of dynamic creative.

Three principles for creating successful banner ads

I've got some empathy for those who think banner ads are boring. If you're looking to tell a complicated story full of emotion and to elicit a reaction, pulling that off with a banner can be difficult. And consumers don't go online to watch banner ads; they go online to chat with friends, read the news, watch videos and play games. Unlike TV advertising, digital display advertising isn't generally interruptive, so digital marketers might feel like they have the deck stacked against them when it comes to attracting people's attention.

As with any marketing campaign, the success of a banner campaign comes down to creative quality.

Does this mean banner ads can't drive brand objectives or, for that matter, sales? Quite the opposite. In fact, we've found they can lift awareness and rev up intention. In the second half of 2014, for example, the banner creative for our Android Wear campaign increased brand recall and intent by 15.8% and 9.4%, respectively.1 We also see display as a great means to build "frequency", or how much the consumer sees the ad. Banner ads are relatively cheap to produce and highly targetable. They can be effective when you have the proper objective and utilise the format in the right way.

Here are three principles that guide the Media Lab team when we create banner ads, along with examples for each:

1. Be compelling. Banner ads have to be eye-catching enough to attract attention. Only then does your marketing message have the opportunity to break through. Things like animation, the use of faces, brand colours and clear text help banner ads stand out.

2. Be concise. Someone might see a banner ad and only pay attention to it for a moment. Use that moment to be concise to make sure your message sticks.

3. Be clear. Banner ads tend to be relatively small, so you don't always have a lot of space to work with. Don't try to say too much, or else the ad will just end up looking cluttered. Instead, clearly communicate a single marketing message about a single product. The need for clarity goes for calls to action, too.

Compelling, Concise and Clear: The Principles at Work


Media channels aren't one-size-fits-all. Video is great for telling complex or emotional stories, making it perfect for certain types of brand building, while display is more of a workhorse. Our goal is to create clear, concise messaging for each channel we use. Take mobile: Here it's about building ads for contextual moments that are often driven by location. Don't try to do too much; capitalise on the strengths of each channel to tell a comprehensive story.

The benefits of dynamic creative

Technology helps us deliver unique ad experiences to our audiences. By using dynamic creative, we're able to create more intelligent and compelling work. The result? Banner campaigns that not only generate excitement and passion among creative folk, but consumers as well.

A primary benefit of digital — and programmatic specifically — is the ability to do one-to-one marketing. You've already reached a highly specific audience through your programmatic buy; dynamic creative allows you to pull the audience insights from your media buy into your creative strategy, so your message is just as targeted as your placements. Compelling creative combined with good programmatic practice helps campaigns be more relevant and successful.

Efficiency is another benefit. Creative agencies that use dynamic creative to populate their ad units can rapidly swap in new assets without having to re-traffic entire campaigns. We do this with our Google Play campaign to quickly promote key content on the platform, such as weekly movie or music releases. By reducing the creative workload as well as the heavy lifting from trafficking, we expect to see significant gains in efficiency for our future campaign setup process.

Dynamic creative can also play a crucial role in a mobile strategy. Last year we launched a dynamic mobile ad unit dubbed the Magic Banner. The ad contained 23 pieces of dynamic content drawn from five different APIs, so over 95% of the ad was dynamic. We're taking things a step further in version 2.0. We want to convey the power of Search in a way that's interesting, relevant and, hopefully, a value-add to mobile users. To do that, we're using search insights and leveraging contextual signals (time of day, weather and location, for example) to give the audience the right information at the right time.

Magic Banner 2.0's Dynamic Creative


Use creative testing to optimise banner effectiveness

The three principles mentioned earlier are great in theory, but they can be interpreted and applied in any number of ways. So how do you know if you're getting the most from your banner campaign? When you see your digital campaign results, how do you know whether it's your creative or the media that's driving performance? The answer is to systemise the process with creative testing. Then, you can develop creative best practices using the results.

Unlike in-market testing, where both creative and placement are variables, creative testing only analyses the creative, keeping placements constant. We look for lifts in both brand recall and intent to measure the impact of the creative. If the ad creative fails, we go back to the drawing board. Consumers are spending more time online, and digital budgets are growing, so be sure to analyse as much data as you can before spending significant resources on online media.


Smart creative testing helps legitimise digital as a marketing vehicle. And marketers will gravitate to channels and tactics that deliver measurable results. Creative testing also provides them with a benchmark for success.

Without testing, creative quality turns into a subjective — or even philosophical — debate. Data helps streamline the dialogue. Since creative testing isolates creative quality, it's possible to extrapolate which tactics work to formulate a set of best practices. These tests are also relatively cheap (usually less than $15K). That's just a tiny portion of a media spend that can add up to hundreds of thousands, if not millions, of dollars.

Given the insights above, the importance of banners shouldn't be underestimated. Strengthening the creative quality of digital display campaigns requires some work and investment, but good creative and proper testing can yield dramatic results.

  • 1. Google Data, Q3 and Q4 2014, United States and United Kingdom.