5 ways to change a bad banner ad into a good one

It’s been over 30 years since the first web page banner ads launched, way back in 1994. One of them, on Wired magazine’s then website hotwired.com, featured the copy “Have you ever clicked your mouse right here?”, followed by a vaguely threatening “You will”. The ad linked through to a campaign by American telecoms firm AT&T.

Joe McCambley, co-founder of The Wonderfactory and the man behind the campaign, has said the ad returned a 44% click-through rate while it was running (I’m sure the novelty factor played a big part in drawing in curious clickers).

These days, as marketers we’re over the moon if our display ad conversion rate gets above a couple of percent. Banner ads can be a tough nut to crack. Many factors now play against the format, the biggest being the dwindling trust web users have for this in-your-face, ‘outbound’ style of advertising.

But don’t write them off just yet. Done right, banner ads can still be a valuable lead generation tool. If you master the basics (we’ll cover them below, in case you’re a little rusty!) and optimise, optimise, and optimise again for today’s tech-savvy audiences, you’ll stand a better chance of success.

Brief summary

• First banner ad in 1994 achieved 44% click-through rate, but modern display ads struggle to reach even 2% conversion due to “banner blindness” and diminishing user trust
• Mobile-first design is crucial – 54% of global internet traffic is now mobile, making mobile optimisation essential for capturing conversions on smaller screens
• Five quality banner ad elements – prominent company logo, concise value proposition, clean design with strategic colours, strong specific CTAs, and a clear understanding of goals and audience
• Common banner ad failures include – not going mobile-first, lack of targeting/personalisation, not using rich media, skipping A/B testing, and failing to nail basic copy/imagery/colours
• Google Display Network reaches 90% of internet users worldwide through millions of websites, apps, and YouTube, making strategic campaign setup and targeting crucial for success
• AI-powered bidding strategies optimise for business outcomes – ‘Maximise conversions’ and ‘Maximise conversion value’ use machine learning to determine optimal bids automatically based on historical data
• Performance Max campaigns represent the future – AI combines Display, Search, YouTube, Gmail, and Discover ads into single campaigns that automatically optimise creative assets across placements
• Privacy-centric advertising requires new approaches – first-party data becomes more valuable as third-party cookies disappear, with contextual targeting returning to prominence
• Creative diversity improves AI performance – providing multiple high-quality images, varied headlines, and different calls-to-action gives machine learning algorithms more options to test and optimise
• Attribution tools become essential for measuring the complete customer journey from banner ad impression through phone calls to final conversions, enabling true ROI measurement and budget optimisation
• Rich media and animation significantly impact performance – carousel banners, video content, and live feeds help ads stand out

Challenges of display advertising

Remember the 2016 TV ad for Febreeze, featuring the strapline ‘You’ve gone nose blind’? It’s a genuine phenomenon, describing how people can become accustomed to bad odours and no longer smell them.

A similar term ‘banner blindness’ has emerged to describe web users who are completely unfazed by banner ads, flashing and blinking left, right and centre on a web page. In fact, we’ve all learned to tune out of the irrelevant messages and imagery that bombard us online every day. For this, banner ads get a particularly bad rep.

So how can you overcome banner blindness and get people to click your ad and, even better, actually convert on your campaign goals?

Key elements every quality banner ad needs to maximise conversions

Before diving into what goes wrong, let’s establish the foundational ways to improve your banner ads and get higher conversions:

1. Your company logo should be prominently displayed but not dominate the entire ad space. The logo builds brand recognition and trust, which is particularly important when users are deciding whether to click on an unfamiliar advertisement.
2. Concise, compelling information that communicates your value proposition in just a few words. You have seconds to capture attention, so your message must be immediately clear and relevant to your target audience’s needs.
3. Clean design with strategic use of colours that align with your brand while standing out from the surrounding webpage content. Avoid cluttered layouts that confuse users about where to focus their attention.
4. A strong call-to-action (CTA) that tells users exactly what you want them to do. Generic phrases like ‘Learn more’ perform poorly compared to specific CTAs like ‘Get your free quote’ or ‘Book a demo today’.
5. Understanding your ad goals and target audience before you design anything. Are you driving awareness, generating leads, or promoting a specific product? Your design decisions should support your primary objective while speaking directly to your intended audience’s interests and pain points.

These elements work together to create banner ads that feel professional, trustworthy, and relevant rather than spammy or generic.

Design best practices for 2025

Modern banner ad design requires balancing visuals with performance optimisation across multiple devices and platforms.

1. Prioritise visuals that tell your story instantly. High-quality images or graphics should support your message rather than distract from it. Product shots, lifestyle imagery, or simple illustrations often outperform stock photos that feel generic or disconnected from your offering.
2. Use colour to guide user attention toward your most important elements. Your CTA button should stand out through contrasting colours, while your overall palette should remain consistent with your brand identity.
3. Research competitor designs for inspiration without copying them directly, of course. Understanding what others in your industry are doing helps identify opportunities to stand out while meeting user expectations for your sector.
4. Choose readable fonts that work across all device sizes. What looks great on a desktop might be illegible on mobile screens. Stick to web-safe fonts and ensure your text remains clear even when ads are displayed at smaller sizes.
5. Always keep your target market in mind throughout the design process. B2B audiences might respond to more professional, data-driven designs, while consumers might prefer emotional, lifestyle-focused visuals.
6. Test multiple design variations to understand what resonates with your specific audience. Small changes in colour, layout, or messaging can significantly impact performance.

What makes a poor-performing banner ad?

Let’s look at where it can all go wrong – and what you should do instead. If you’ve had a display ad campaign die a death, it’s more than likely that one of these culprits was to blame:

1. You overlooked mobile-first design. Mobile now accounts for well over 62% of global internet traffic is mobile traffic, and in many sectors it’s closer to three quarters. If your ads aren’t built for the small screen first, you’re handing leads to competitors. Make sure every creative element – copy length, image size, call-to-action – looks sharp and loads fast on mobile. Test across devices and networks so your ads grab attention whether someone’s on 5G or dodgy café Wi-Fi.
2. You skipped targeting and real-time personalisation. Reaching people online is tough; reaching them with a one-size-fits-all ad is tougher. In 2025, precision targeting and dynamic creative are table stakes. Go beyond basic demographics: segment by behaviour, interests, and intent signals. Use real-time triggers – think weather shifts, trending topics, or live sports scores – to serve ads that feel timely and relevant. A convertible ad during a sudden heatwave or a late-night food promo when the big match goes to extra time can turn a passing glance into a click.
3. You didn’t use interactive formats. We’ve come a long way since those heady days of the first banner ads in 1994. To grab attention in 2025, ads need movement or a way for people to interact. Think short-form video, swipeable carousels, dynamic creative that personalises on the spot, or shoppable display ads. Even a simple animated element or a quick product clip can lift engagement and conversions without a big spend.
4. You didn’t test and optimise
   Skipping A/B testing is like setting fire to budget. Every element – headline, image, CTA, audience targeting – affects performance. Marketing analytics platforms like Mediahawk make it easy to run experiments and trace each lead back to the exact ad or keyword. Test, learn, and tweak fast so you know what really drives results.
5. You didn’t get the fundamentals right
   Great creative still wins. Your copy, visuals and colour palette need to reflect your brand and stop the scroll. High-quality images and concise, benefit-led copy are non-negotiable. Placement matters too: choose sites and formats your audience actually uses and track which ones convert. In 2025’s crowded ad space, nailing these basics is what separates campaigns that convert from those that just burn budget.

Understanding Google Display Network and campaign setup

The Google Display Network (GDN) is one of the largest advertising platforms available, reaching over 90% of internet users worldwide through millions of websites, mobile apps, and YouTube.

Your ads will appear across a vast network of partner websites, from major news sites to niche blogs, ensuring your message reaches potential customers wherever they browse online. This extensive reach makes GDN particularly valuable for brand awareness campaigns and retargeting efforts.

However, setting up Display campaigns requires strategic planning around your creative assets, targeting options, and budget allocation. You’ll need to upload various image sizes, write compelling headlines, and choose audience targeting criteria that align with your campaign objectives.

Responsive Display Ads leverage Google’s AI to automatically generate optimal ad combinations from your uploaded assets. You provide headlines, descriptions, images, and logos, then Google’s machine learning creates thousands of ad variations to test which combinations perform best for different audiences and placements.

Practical campaign setup steps include:

• Defining your campaign objective (sales, leads, website traffic, brand awareness)
• Setting your target audience using demographics, interests, and behaviours
• Choosing placement targeting (specific websites, apps, or letting Google optimise automatically)
• Uploading high-quality creative assets in multiple sizes
• Setting appropriate budgets and bidding strategies

Targeting options range from broad demographic targeting to precise remarketing lists based on previous website visitors or customer data. The key is starting with focused targeting and expanding based on performance data.

Google Ads bidding strategies for maximum conversions

Google’s automated bidding strategies can be one of the ways to improve your banner ads and get higher conversions by leveraging machine learning to optimise for your specific goals.

1. ‘Maximise conversions’ bidding automatically sets bids to get the most conversions possible within your daily budget. This strategy uses historical conversion data and real-time signals to determine the optimal bid for each auction, removing the guesswork from manual bidding.
2. ‘Maximise conversion value’ focuses on the total value of conversions rather than just the number. If you’ve set up conversion values (like purchase amounts or lead quality scores), this strategy prioritises higher-value conversions even if it means fewer total conversions.
3. ‘Target CPA’ (cost per acquisition) settings can be added to maximise conversion campaigns to maintain cost efficiency while scaling volume. Without target CPA, Google will spend your entire daily budget to maximise conversions regardless of cost.
4. ‘Target ROAS’ (return on ad spend) works to maximise conversion value and ensure your campaigns remain profitable while scaling. Set a target ROAS based on your business margins and desired profit levels.
5. Bid adjustments interact differently with automated bidding strategies. Device bid adjustments, for example, provide signals to the algorithm about where you want to focus spend, but the actual bid amounts are still determined automatically.
6. Budget considerations are crucial because maximise conversions aims to spend your full daily budget. If your budget is too low, the algorithm may struggle to gather sufficient data for optimisation. Conversely, unlimited budgets without target CPA constraints can lead to unprofitable spending.

Performance monitoring should focus on conversion volume and quality rather than traditional metrics like CTR or CPC. These automated strategies optimise for your business outcomes rather than engagement metrics.

AI-powered creative optimisation and Performance Max integration

Artificial intelligence is changing how banner ads are created, optimised, and integrated within comprehensive campaign strategies.

Google’s AI automatically scales your creative assets to thousands of different shapes and sizes, ensuring your ads look professional across every placement on the Display Network, eliminating the need to create dozens of banner variations for different ad slots manually.

Asset testing happens continuously as AI identifies which combinations of headlines, descriptions, and images perform best for different audiences and contexts. This real-time optimisation improves performance over time without manual intervention.

Performance Max campaigns are the future of Google advertising. They combine Display, Search, YouTube, Gmail, and Discover ads into single AI-powered campaigns.

Demand Gen campaigns target audiences in discovery moments across YouTube, Gmail, and Discover feeds. Your display creative assets are automatically optimised for these high-engagement placements where users are actively exploring new content.

Creative best practices for AI optimisation:

• Providing multiple high-quality images with different compositions and focal points
• Writing varied headlines that emphasise different value propositions
• Including both lifestyle and product-focused imagery
• Testing different calls-to-action to identify what motivates your audience

Asset diversity improves AI performance because machine learning algorithms need multiple options to test and optimise. The more quality assets you provide, the better the AI can match creative elements to audience preferences and placement contexts.

Plus, integration with call tracking and attribution tools ensures you can measure the impact of AI-optimised campaigns, including phone conversions that might not be captured through standard pixel tracking.

Privacy-centric display advertising in 2025

The shift toward cookieless advertising is fundamentally changing how display campaigns target audiences and measure success.

First-party data becomes increasingly valuable as third-party cookies disappear. Your email lists, website visitor data, and customer information provide the foundation for effective audience targeting without privacy concerns.

Contextual targeting returns to prominence as advertisers focus on webpage content rather than user behaviour tracking. AI-powered contextual advertising can identify relevant placement opportunities based on page content, ensuring your ads appear alongside related topics.

Google’s Privacy Sandbox initiatives, such as Topics API and Protected Audience, provide privacy-preserving alternatives to traditional cookie-based targeting. These technologies maintain advertising effectiveness while protecting user privacy.

Measurement challenges require new approaches to attribution and conversion tracking. Powerful attribution tools become essential for understanding the customer journey without relying on third-party cookies.

Consent management affects campaign reach as more users opt out of tracking. First-party data collection and email marketing integration are more important for maintaining campaign effectiveness. Creative quality also becomes more important when precise targeting options diminish. Compelling, relevant ads that appeal to broader audiences will help maintain performance even with less granular targeting capabilities.

Focus on customer lifetime value rather than just initial conversion metrics, as privacy changes make it harder to track individual user journeys across multiple touchpoints and campaigns.

Digital marketing and the technology we use to do it have changed significantly since the early days of banner ads. Now, there are many challenges to overcome and a growing number of tech-savvy users to impress.

You need to evolve, combining compelling creative design with AI-powered optimisation and privacy-compliant targeting strategies. Success comes from understanding your audience deeply, providing genuine value, and leveraging technology to deliver the right message at the right moment.

Integration with comprehensive measurement tools ensures you can track performance across the entire customer journey, from initial banner ad impression to phone calls and final conversions. This complete attribution picture enables continuous optimisation and budget allocation based on true business impact.

But with the right approach, you can still get good results from your banner advertising campaigns. Follow these steps and you’ll be on the right track to see positive results and higher conversion rates.

This blog was originally published in May 2021, and was revised and update in August 2025.