Real-World Case Studies and Customer Success Stories with ZEFR

Zefr helped Telefónica (Movistar Mexico) improve their YouTube ad campaigns. Telefónica wanted better brand suitability and lower CPMs. Zefr measured... campaign results and set a baseline. After using Zefr’s exclusions, Telefónica saw a 22% drop in CPMs and a 6.73% increase in brand suitability. Zefr also removed over 184,900 risky channels and videos from their campaigns.
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Zefr helped a major telecom brand improve ad recall on YouTube. The brand used Zefr’s AI-powered brand suitability tools to... filter for low-risk content and exclude children’s entertainment, mature music, and gaming. Zefr delivered a 42% higher lift in ad recall than a traditional third party provider and 78% higher than platform-provided suitability. Only 5% of impressions with the third party provider and 40% with platform tools ran against unsuitable content, while Zefr enabled full spend on suitable reach.
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Zefr Max helped Telefónica's Tuenti Ecuador run a YouTube campaign for a new mobile brand. The challenge was to improve... media quality and efficiency using Zefr Max Exclusions and Bid Optimizer. The solution delivered 15% more efficient CPMs, a 13% increase in media quality ROI, 10% more impressions, a 9.58% higher view-through rate, and 8% higher brand suitability. Telefónica reinvested cost savings into better media placements, boosting overall campaign performance.
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Zefr's brand safety and suitability measurement solution helped Marks & Spencer run a holiday charity campaign on TikTok. The campaign delivered... over 17 million impressions, exceeding reach and view goals by 120%. M&S saw zero brand safety or suitability violations. Real-time dashboard updates gave full transparency. The solution ensured safe, effective video ad targeting for a major retail brand.
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Waitrose used Zefr's brand suitability data with Meta's Advantage+ Shopping Campaign to get new shoppers and keep their brand safe. They wanted better... ad performance and brand safety. Zefr's Allow Lists helped Waitrose lower their cost per purchase by 35%. They also saw a 53% higher return on ad spend. Waitrose was able to get better results without giving up brand safety.
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Zefr Managed Media helped MAGNA study the impact of ads placed next to misinformation. 61% of people remembered brands near... misleading content, but not always in a good way. 47% said a brand's integrity drops when ads appear by misinformation. The same ad looked less trustworthy next to false content. This shows how ad placement affects brand reputation and trust.
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Zefr partnered with MAGNA to study misinformation and its impact on consumers and brands. The research explored how people identify... misinformation and what they expect from brands. The study highlights the importance of brand safety and responsible advertising. Zefr's solutions help advertisers address misinformation concerns.
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Zefr Max helped a leading global CPG brand improve brand suitability and reach on Meta. The brand wanted to avoid... misinformation and hate speech without losing scale. They used Zefr’s suitability measurement and custom blocklists in two campaigns. The solution blocked high and medium risk categories. As a result, the brand achieved 99.9% category suitability, even during a rise in unsuitable impressions.
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Zefr's Cognition AI helped Rexona ensure 99. 9% brand safety and suitability for their TikTok campaign. The campaign, "Rexona Dance...Sem Parar," reached 19.7 million people and delivered 118.9 million views. Rexona saw a 14.9% lift in ad recall, 7.6% increase in awareness, and 3.9% boost in brand association. Zefr's measurement tools verified that ads ran in brand-safe environments. The partnership enabled Rexona to align campaign results with core brand values.
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Zefr's brand suitability verification product for Meta helped a major pharmaceutical brand and CMI Media Group improve their Facebook Feed campaign. The challenge was... to ensure brand safety and suitability in a sensitive industry. Zefr's solution measured content-level suitability and guided real-time optimizations. The campaign achieved a 6.7% improvement in brand suitability. Suitability rates increased by 7% by the end of the campaign, and polarizing publishers were removed from delivery.
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Zefr Max helped a major pharmaceutical brand improve YouTube ad performance for their opioid use disorder medication. The brand used... Zefr's bid optimizer and self-service tools to increase reach and ensure brand safety. The campaign achieved 15.1% more efficient CPMs, saving $131,000 in total and $1,300 per day. Reach grew by 7.9% with 655 million total impressions. Suitability improved by 6.4% compared to YouTube benchmarks, with 97 million optimizations applied.
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Sony Pictures Entertainment used Zefr and TikTok’s Inventory Filter Solution to promote their Uncharted film in Spain. The goal was... to build mass awareness and ensure brand safety for their ads. They ran In-Feed Ads with official trailers and used Zefr to measure campaign safety. The campaign got over 35 million impressions, 118,000 clicks, and a 99% verified brand safe delivery rate.
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Zefr helped McCain Foods boost brand awareness and sales in the US market. The campaign used contextual targeting to reach... family lifestyle and cooking audiences. McCain Foods saw a 9% lift in incremental sales and $800K in additional retail sales. The campaign reached new, lapsed, and never buyers. Zefr and McCain Foods were finalists for the 2024 ThinkLA Idea Awards.
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Zefr Measurement helped Adidas verify 99. 9% brand safety and suitability for a TikTok campaign. Adidas used Zefr’s post-bid measurement...tool and TikTok’s Inventory Filter to target 18–34 year-old sports fans. The campaign delivered over 57 million impressions. Zefr’s dashboard gave Adidas daily insights on content adjacencies. This ensured brand safe, suitable environments without losing scale or performance.
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Zefr helped a design and creative software brand grow product awareness using brand suitability targeting. The brand ran a Q4... campaign to reintroduce a less-adopted product, showing its features to spark interest. Zefr’s contextual approach reached the right audience and improved brand perceptions. The campaign achieved a 97.2% lift in product awareness, 16.6% lift in consideration, 31.5% lift in agreement that the brand helps users realize their vision, and 16.7% lift in search activity. Zefr’s targeting also drove an 87.6% lift in recall.
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Zefr's brand suitability targeting helped a nationwide fast casual QSR chain launch a new menu item as a digital exclusive. The QSR chain... used Zefr's YouTube targeting to reach new audiences and increase online awareness. The campaign achieved a 79% incremental, unduplicated reach compared to TV, with 80% of impressions on target for ages 18-34. Ad recall lifted by 23.6%, and consideration increased by 2%. Zefr's solution helped the QSR chain reach its target audience and drive results for the new product launch.
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Zefr helped Mazda launch the Mazda CX-50 with a YouTube video campaign. Mazda used Zefr's Cognition AI for contextual targeting... and managed media services. The campaign focused on outdoor adventure content to reach the right audience. Results included an 18% incremental search lift for the new model and a 75% awareness rate for the Mazda brand. The campaign won Campaign of the Year at the ThinkLA 2022 Idea Awards.
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