Experian received top ranks for hashed emails (HEMs) and demographic data from Truthset Data Collective

Advertisers, technology partners, and agencies are all chasing accurate data to power their marketing strategies. Turns out, not all data is created equal and unless you’re working with the right partner, high-quality data can be hard to find. That’s because accuracy can vary widely across the industry and the partner you choose is important. A recent study conducted by data validation company Truthset showed that 51% of the data used for ad targeting and audience measurement is wrong, with average accuracy rates ranging between 32%-69% across data providers.
The data quality challenge
The lack of high-quality data poses multiple challenges in the advertising world:
- Wasted ad spend: without accurate data at the start, marketers can’t reach the right audiences, resulting in wasted impressions.
- Privacy and compliance: in an increasingly privacy-centric world, advertisers need to be especially mindful of accurate targeting to avoid putting their brand reputation at risk.
- Poor campaign performance: low-quality data skews metrics and attribution models, making it difficult to measure campaign success and optimize spend.
Low-quality data can come in different forms like inconsistent or outdated information – think demographics (age, gender) and interests (dog versus cat lover) or simply the wrong relationship can be made between datasets. Data records can be incomplete or duplicative and data segments could be misclassified or inaccurate. For example, a kids snack food company may think they’re targeting a 35-year old man, who lives in the suburbs with his young family when in fact it’s a 65-year-old woman who moved to the city after her kids went to college. It’s wasted dollars!
Build the data foundation
Data quality needs to be addressed if advertisers and advertising technology partners want to fulfill consumers’ demand for personalized marketing. Per eMarketer, more than 75% of internet users worldwide said they were willing to share their email address, brand interest, and name in exchange for personalized experiences. Without accurate data, marketers won’t be able to provide the level of personalization that consumers desire.
Validation can help advertisers evaluate third party data and help build trust across the ecosystem. Companies like Truthset review and provide an unbiased evaluation of data fidelity and quality on a regular basis.
“As cookies and mobile ad identifiers continue to phase out, consented, durable identifiers (hashed email, postal addresses) are going to serve as the foundation for identity solutions of the future,” said Chip Russo, President at Truthset. “And the only way to ensure you are transacting on the highest quality identity and demography data is to actively validate the data you rely on with a third party.”
Not all data is created equal: Experian leads the way
In Q3 2023 Truthset reviewed Experian’s marketing data – as well as several other large data providers – and found:
- Experian is the #1 data provider in terms of largest volume of high-accuracy hashed e-mails (HEMs) with demographic data
- Experian ranks #1 in accuracy for 15 marketing data attributes, including but not limited to Age, Gender, Home Owner/Renter, Geography, Education, Presence of Children, and Pet Owner
- Experian consistently has the largest number of HEMs with demographic data that are 90% or more likely to be accurate
“As a member of the Truthset Data Collective, Experian received top ranks across a variety of categories for its data,” continued Russo. “The entire digital advertising world runs on data, but focusing on data accuracy is going to drive the next phase of innovation for the industry, enhancing ROI for advertisers, CPMs for publishers, and relevant experiences for consumers.”
As Truthset’s recent study highlights, the data matched between hashed e-mails and postal addresses is crucial, underpinning everything from targeted ads to TV audience measurement. Highly accurate HEMs linked to high-quality demographic data should be the foundation of any marketing plan. Advertisers are able to overcome the complexities of identity resolution by tying online and offline touchpoints together to deliver a consistent message across channels.
Companies are striving to eliminate marketing waste and provide consumers with personalized marketing and the advertising industry can have confidence that Experian’s marketing data has been externally validated as being highly accurate. The accuracy of our data will power smarter marketing initiatives, like insights, targeting, identity, and measurement.
Let’s start a conversation about how we can fully realize the potential of data-driven advertising together.
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Marketers: personalization is our duty Customers willingly give brands a lot of information. Some brands collect names, birthdays, message preferences and location in addition to contact information like email address, phone number and physical address. Brands that connect through Facebook and other social media accounts gain access to even more information – a person’s likes, friends/followers, age, demographics and more. Why are so many consumers willing to share this information? In a recent webinar, Ed Kowalski, Senior Director of Strategic Services at Experian Marketing Services refers to this phenomenon as the equitable exchange – customers provide companies with personal information because they believe it will enhance their brand experience. In return, marketers have a duty to responsibly use that data to benefit the customer. Personalization is an oft-discussed strategy in marketing, but many marketers struggle to make it a reality. In fact, a recent study found that 94 percent of companies have challenges relating to personalization. Yet marketers continue to collect more customer data – without a clear plan to utilize any of the data in a personalized context. Consider a brand that collects birthdate as part of its subscription process. As a consumer, I will only provide my birthdate if I can imagine a benefit to doing so. And I can – the brand may send me personalized well-wishes or even a special offer on my birthday each year. Because I’m willing to share my birthdate, I expect that the brand will use that data to engage me on a personal level. If they don’t, I’m likely to feel that the data I shared was not used productively, which will damage my perception of the brand and make me more reluctant to share information with them in the future. This concept extends to behavioral data too. Consumers often realize that companies may have data on their past purchases, browsing behavior and more. With this assumption in mind, they expect this data to be used to create more relevant brand experiences as well. Remarketing campaigns like abandoned cart emails and display ads targeted by browse behavior are increasing in popularity, as 69 percent of marketers in our most recent survey run these types of campaigns. This means customers are coming to expect them. So what does this mean for marketers? Not only is it a best-practice to personalize messaging based on customer data, but it’s often a requirement. Consumers are saying, “Show me that you know me.” As marketers, we need to make good on the unspoken promise of this equitable exchange. It doesn’t need to be hard. Check out the slides below or watch the webcast to learn how brands can begin to implement more personalized, relevant messages today.

John Fetto, our Senior Research and Marketing Analyst, explored the top five lessons from the 2014 holiday season and provided tips to help marketers revamp their 2015 holiday campaigns. 1. Move over desktops, consumers are using mobile to search for deals Deal seeking is moving to mobile where consumers have access to pricing and coupons while they are on-the-go and closer to making a purchase decision. In fact, searches for “mobile coupons” are up 14 percent since July when mobile search data was incorporated. As for timing, peak deal-seeking searches typically occur during the holiday shopping season, but the past two years, holiday and back-to-school were nearly equal. For marketers to not leave money on the table, it is critical to target deals and discounts strategically to consumers who need and want them most. 2. The must-have gifts of 2014 2014 was the year of the "Internet of Things," the rapidly growing trend in devices — beyond smartphones, tablets and computers — that connect to the Internet. In particular there was a big leap this season in searches for portable fitness devices and smart watches were up 235 percent year-over-year. Additionally, searches for smart televisions were up 30 percent and searches for smart home automation devices were up 67 percent year-over-year. Savvy marketers will use these insights to reach customers in a myriad of new channels in 2015. 3. Reach consumers later in the week It’s no surprise that the three busiest shopping days this past holiday season were Cyber Monday, Thanksgiving and Black Friday, each capturing more than 225 million online visits to the Hitwise Retail 500. Diving deeper into significant peak days in December, we found that Tuesday and Wednesday earned top spots as key online shopping days. This gives marketers the ability to reach consumers with more relevant messages later in the week and drive in-store sales for the weekend ahead. 4. Email is the second biggest driver of traffic Email continues to be a strong driver of online traffic. In 2014, search engines drove 41 percent of the traffic to the Hitwise Retail 500, followed by email with 8.15 percent. Looking at the performances by key peak days, email was a strong driver of traffic on Thanksgiving and Black Friday, and social media drove the most traffic on Cyber Tuesday, the Tuesday after Thanksgiving. 5. Mobile is a strong driver of traffic to retail sites Much of the mobile activity on retail sites comes from browsing while shopping, whether it’s for price comparison, inventory analysis or to find store hours or locations. In fact, a new study from Experian Marketing Services found that 83 percent of cell phone owners now engage in shopping activities on their phone immediately before, during or after visiting a store. In addition, 53 percent of smartphone owners visit shopping websites from their phone during a given month versus 41 percent who use shopping apps during the same time frame. While mobile apps are great ways for marketers to interact with existing customers, mobile web is critical for reaching potential new customers. Marketers who focus their mobile efforts on developing mobile apps at the expense of mobile optimized sites are likely missing the opportunity to attract new shoppers. Learn more about the 2014 holiday season to prepare for next year Watch the Five things we learned this holiday season webcast for deeper insights into these trends: What branded products and product categories were hot this season Mobile shopping trends, including how much consumers are shopping and buying online Consumers’ deal-seeking tendencies and the trend of omnipresent sales, discounts and coupons Analysis of the peak online shopping days and seasonal traffic trends Which retailers were successful this season and the digital channels that were effective in driving traffic