How does one actually get good results from Google Display campaigns? Poor results and not understanding all of the possibilities of Google Display campaigns lead many advertisers to neglect them completely. Often only the remarketing part of it is used. But Google Display campaigns can be super valuable if you know how to use them! 

To make your life easier and let you achieve the full potential of your display campaigns, we created this comprehensive guide of Google Display best practices helping you get the results you want!

Fun fact – Google Display ads are seen by more than 90% of internet users across 2 million sites. With constant updates, ever-increasing automation, and the recent rolling out of Discovery campaigns, there’s a lot of things you can do in order to improve your display campaigns.

In this comprehensive post about the best practices for Google Display campaigns you’ll read about:

  1. Picking the perfect bidding strategy 
  2. Choosing the right campaign type (Standard vs Smart display)
  3. The most valuable audiences to use in Display
  4. Best practices for Smart Display 
  5. Best practices for Discovery campaigns 
  6. Evaluating results of Display campaigns

Embrace the automation🤖

The Display Network reaches far and wide and even the biggest advertisers could only control a fraction of it. When and where an ad is best shown or how much to pay for it, are decisions often best left to the machines. 

What you can do, though, is to guide the algorithms with quality data and structure, so that the powerful algorithms can do their job efficiently. Some control will be lost, but automation will guide you towards even more efficient campaigns and bring results from users you wouldn’t even know to target manually.

Automation also means there will be a learning period, during which time you can expect to see a large variance in results. Depending on the conversion volume it might last somewhere between 2-4 weeks. Although sometimes there are good reasons for making big changes quite early, it’s best to wait until evaluating results and only start making changes once the learning period is over. Even then it’s best to not make changes too often so that the campaign wouldn’t start a new learning period. 

Learning period for Smart campaigns

The learning period depends on the volume of data

How to make the algorithms work for you:

  1. Consider that they need time to ramp up
  2. Consolidate ad groups to get more volume
  3. Evaluate success over time – meaning weekly-monthly, not daily
  4. Minimize significant changes to 1x week
  5. Track the right conversions! When redefining, what a conversion is, consider creating a new campaign. 

Choose your bidding strategy

The right bidding strategy is aligned with your goals. Generally, as your campaign targeting is moving further down the sales funnel, you’d expect to pay more for clicks and less for conversions, so keep that in mind when building your campaigns, setting bids, and evaluating results.

  1. Use enhanced CPC if you wish to maintain control over click prices, but also use the power of smart bidding. If you’re using eCPC, then you need to remember to check placements performance reports to exclude irrelevant placements and in general, be more careful with targeting. eCPC is bidding higher for clicks, that are likely to convert, but it is still optimizing for clicks, so you need to be extra careful. We recommend moving away from this strategy as soon as you have enough conversion data. 
  2. Choose maximize conversions if your aim is to get the most conversions at your current campaign’s budget. This strategy is for you if you don’t have a specific CPA or ROAS goal, but aim to spend your budget as efficiently as possible. If the campaign’s budget is less than 10x the target CPA, consider starting with the maximise conversion strategy.
  3. Use target CPA if you already know how much you’re willing to spend per conversion and don’t want to go over that.
  4. Enable target ROAS if you have an overview of your conversion values and want to optimize for a target return on ad spend. You also want to be sure that the conversion value data gets tracked correctly and you are not feeding the algorithm incorrect data.

Google Ads bidding strategies

Use Drafts & Experiments to test a new bidding strategy. Make sure you have a clear goal, so as your experiment runs, you can focus on comparing the right metrics. Our experience has shown though that maximize conversions strategy is best tested outside of the experiments. Since maximise conversions thrives on a limited budget and tCPA and eCPC need to be unlimited, sharing the budget between the campaign and experiment will not give you accurate results of how the strategies compare.  


The default ad type for the Display Network is now a Responsive display ad. To create it, upload your assets – headlines, descriptions, images, and videos and Google will automatically determine optimal combinations for effective ads. 

Responsive display ads allow for large variances in ad sizes and asset combinations. Using all 15 images, 5 descriptions and 5 headlines, already allows for more than 300 asset combinations. Together with all of the sizes it can generate, millions of asset combinations will be A/B tested real-time for you

Videos are quite a recent addition and will be shown instead of images whenever Google determines, they might drive better performance. If you don’t have any currently but are curious to use them, you can create them with Google’s free Video Builder. Currently, in beta, it’ll help you create videos from images, text, and logos that you already have. 

Give RDA-s at least 2 weeks to learn and then check the assets report to evaluate the performance of your assets and check audience insights. Use these insights to replace low performers and tailor creatives to the liking of your main audiences. 

What’s the right campaign type for you?

Start with evaluating your campaign goals and setting priorities. If you’re looking to control targeting, then you should pick Standard Display. When you’re ready to give up more control over targeting then pick Smart Display.

If you have a clear idea of who should see your ad and what you’d wish to tell them, go with Standard Display. Standard Display is a solid choice for separate remarketing, seasonal promotions, and targeted launches. 

If you’re looking for volume and plan on having display campaigns always active, Smart Display was made for you. Smart Display is great for engaging new people, generating sales or leads, and a high volume of impressions. It’s also useful if you are looking to gather data and get an estimate of averages. It’s also worth noting that Smart Display campaigns will get better over time, as the algorithms are constantly learning and improving themselves.

Structure standard display by intent💡

Compared to the Search Network, advertising on the Display Network creates a more disruptive experience. A person casually reading the news or scrolling through their email, will not care for your ad the same way they would, were they actively using Search to find your product or service. 

But a person’s purchasing intent will vary greatly across the Display Network as well. This is why it’s useful to start thinking in audiences. 

One of the main target audiences should be people who have visited your website or purchased from you before and are therefore already familiar with your brand – these are called remarketing audiences. You might want to change your messaging or landing page when communicating with them. 

For general awareness campaigns, you still want your ads to be seen by people who are most likely to care about them. Here the current options include content targeting (placements, topics) and audience targeting (demographics, affinity audiences, and in-market audiences). Audiences are real-time. For example, when someone is showing intent to buy baby products, they are moved into the respective in-market audience. When the person has made a purchase or otherwise stops showing intent, they are removed from the audience list. 

If you’re looking to understand the difference between affinity and in-market, I’ll share a quick example. Someone regularly browsing parenting blogs is a fan of family-related content and belongs to the Family-Focused affinity audience. But when the person is also looking around for baby shower gifts or comparing stroller models, they’re showing signals that could be aligned with purchase intent and belong to the Baby & Children’s Products in-market audience. This is why audiences have much more potential for your ad to be shown to the right person compared to any demographic targeting. Targeting say 65+ males might not be a marketers’ first guess when selling child safety seats, but should the signals for the purchasing intent be there, they get moved to the right audience. 

Your options also include custom-intent and custom affinity, which you define yourself. With custom-intent, you can target people that are actively searching certain URL-s or keywords. With custom affinity, you define an audience by adding relevant interests, places, web-pages, or apps. Life events audiences allow you to reach people that have recently gone through specific life events, such as starting a business or purchasing a home.

DIfferent types of targeting in Google Display campaigns

Keep remarketing separate

You definitely want to separate remarketing campaigns on Standard Display. You can do so by using audience exclusions. First, this is helpful in preventing audience overlap. Secondly, as your budgets and goals are different from your awareness campaigns, you might want to use different bidding strategies as well. 

If you have a product or a service feed, you can also use dynamic remarketing. Dynamic remarketing will take your remarketing game one step further and show the people in your remarketing lists ads that contain products they interacted with on your site. Clicking the ad will take them straight to the product page. Pro tip – Google doesn’t offer reporting for this on item level, so use Analytics for that. 

On that note, you can also use your feed to find new customers with dynamic prospecting. Dynamic prospecting uses machine learning to match people’s possible buying intent with the optimal products in the feed. 

Excluding apps📱

Mobile searches are growing, but there are mobile placements that often just don’t work, namely apps. Apps and mobile games can bring you a lot of clicks at zero conversions. That’s because these clicks are mostly accidental and often made by kids. To check if this is happening, check the “Where ads showed“ tab. Filter for placements that contain “app” and exclude the ones not working for you. If you are not interested in testing placements in Apps at all, then you could even exclude all mobile apps from the beginning. This is done quickest using Google Ads Editor. In the browser, you can use placement exclusions. We are not saying that App placements never work, because sometimes they do bring conversions as well. It’s best not to make any conclusions until you run tests and investigate your own results. 

Best practices for display audiences:

  1. Customize messaging for different audiences, including when targeting affinity vs in-market audiences.
  2. Check where your ads were shown and exclude apps. 
  3. Test 5-10 audiences in ad groups. 
  4. Include 5-20 keywords or URL-s per custom intent ad group.
  5. Don’t forget about audience exclusions! 


Gmail ads are interactive ads that will show in the Promotions and Social tabs of a Gmail inbox. They can be expandable and include images or video and be saved. 

Your customers are probably already receiving email messages from you. Don’t rule out remarketing completely, but in general, this campaign type is more useful for finding new leads. Do this with:

  1. Keyword targeting – are people searching for your competitors? Maybe they should see your great offer as well. With keyword targeting, you could create a list of your competitors’ domains and show your ad to people interested in them. 
  2. Using audiences. All audience and demographic targeting options are available. You can also upload your email list and use similar audiences to expand them and reach new users. As they are less likely to convert right away, consider also having a remarketing campaign ready and running before using them. 

Good copy is very important as Gmail ads have a kind of a quality score of their own. To pay less for clicks, you should aim to increase your CTR or open rates. Don’t just use your regular search headlines, but think of your titles as email subject lines and text. 

Tips for successful Gmail campaigns

  1. Your headlines should feel natural in the mailbox.
  2. Consider using promotion codes and offers in the title to boost open rates and lower CPCs.

Smart Display🧠  

Smart Display is Google’s highly automated full-funnel solution for advertising across the Display Network (Including Youtube and Gmail). Within the limits of the goal you have set (be it budget, CPA or ROAS), it will aim to maximize volume

Smart Display will optimize targeting as the campaign runs. Your ads will be increasingly shown where Google sees them getting the most action. Targeting also automatically includes remarketing

Do you have a product feed? If yes, you can use it with Smart Display as well. In fact, if you have it in your account, Smart Display will automatically link your feed when you start the campaign. 

On a side note – another way to take advantage of the Display Network, if you are an e-commerce site, is to use Smart Shopping. As of yet only available in certain countries, Smart Shopping will show your product ads across Google networks, including Search, Display, Youtube, and Gmail.

Smart display and smart shopping will get you lots of traffic for low CPCs. If you’re looking to maximize volume at your target ROAS or CPA, it’s great. But it’s a black box and as the low CPCs suggest, you’re probably mixing in low intent audiences as well.

So what can you even do?

You can’t exactly target where your ads will be shown, but you can guide it somewhat by using exclusions. Should your message not be relevant for your existing customers, you can exclude them. You can’t exclude apps from the start, but you could use topic exclusions for games or exclude them manually from the “Where ads showed” tab. You can also add negative keywords, demographics, and use account-level placement exclusions for specific sites. Keep in mind that more volume means more data, though, and smart campaigns thrive on data

When optimizing a Smart Display campaign, the same guidelines as for smart bidding apply. Keep your changes small and rare – around 10% every other week or so. Also, make sure to check asset performance and swap out assets that are not performing well compared to others. By clicking “View asset details”, you can check the score of every single asset (headline, description, image) – low, good, best. You can also see the winning combinations in the Combinations tab.

Some good ideas for Smart Display include:

  1. Having a specific landing page (ideally not just the homepage), relevant to the ad text messaging. Smart Display is great for promotions and campaigns. 
  2. Structuring ad groups per product type.
  3. Using tCPA that is 1,5-2x higher than your average non-generic search CPA.
  4. Ideally, setting the budget to >5x your tCPA.

Pro Tip: If you can’t set a budget of 5x your tCPA, consider creating a new conversion event. For example instead of purchases you could use “add to cart” conversions.

Discovery campaigns🔭 

Discovery campaigns are a whole new type of automated campaigns recently available for all. Discovery ads will show ads on Gmail, Youtube, and Google Discover feeds. What you would assume about people scrolling through these feeds (mostly on mobile), is them being engaged and looking for something new and interesting. 

This is why Discovery campaigns will work best for seasonal or promotional events, new product launches, and getting your ads to specific audiences. If you want to test it, you might want to do so with remarketing audiences.

Compared to Standard Display, you can expect more clicks and a higher CTR. As with Smart Display, you can also expect to give most of the control to the machines. You won’t be able to target or exclude devices or placements, nor set a frequency gap. The ads will be automatically combined from the assets you provide. It will also perform better with more data. Before making any changes, it is recommended to wait for at least 40 conversions. 

Discovery campaign

Setting up effective Discovery campaigns

  1. Google recommends your images to be inspiring and high quality.
  2. Focus on audiences that have been working well for you before. 
  3. Your average daily budget should be at least 10 times your target CPA bid.

Evaluating results

Before evaluating if your display campaign is working for you, have patience and wait until the learning period is over. Also, do consider time lag for conversions. You can check for both of these from the Bid strategy report.

Generally, when thinking of a conversion from an ad, it will be connected to a click. With display ads, you can also evaluate view-through conversions. A view-through conversion will be recorded, when a person has seen the ad, has not interacted with the ad, and has later completed a conversion on your site. 

The last viewable impression will get the credit and an ad is considered viewable when at least 50% of it is onscreen for at least 1 second. View-through conversions will only be tracked if you use Google Ads conversion tracking. If you are using imported goals from Google Analytics then you won’t see them. An added benefit of Google Ads conversions is that you also see cross-device conversions if somebody clicks on the ad on mobile and then converts on desktop.

View-through conversions won’t be included in the conversions but will be included in All conversions. To see them, add the View-through column separately. You can also add Cost/ all conversions column, to enjoy a lower CPA. 🙂 

Use display to drive results🚀

I hope that after reading this you have a better idea on how to make the Display Network work for you. For a tl;dr, here are the main ideas summarised:

  1. Guide the algorithms with quality data and structure.
  2. Choose a bidding strategy that’s aligned with your budget and goals. 
  3. Separate remarketing on Standard Display.
  4. Customize your messaging and creatives to your audience. 
  5. Exclude irrelevant placements, apps. 
  6. Evaluate success over time – meaning weekly-monthly, not daily

There are many great ways to use display ads effectively. Brand lift is cool, but optimizing and planning for conversions will not only get you the results but will also mean that your ads will be seen by more people who actually find them relevant, conserving everyone’s mental energy and attention!