In 2022, Google began changing the availability of the information available in User-Agent strings across their Chromium browsers. The change is to use the set of HTTP request header fields called Client Hints. Through this process, a server can request, and if approved by the client, receive information that would have been previously freely available in the User-Agent string. This change is likely to have an impact on publishers across the open web that may use User-Agent information today.
To explain what this change means, how it will impact the AdTech industry, and what you can do to prepare, we spoke with Nate West, our Director of Product.
What is the difference between User-Agents and Client Hints?
A User-Agent (UA) is a string, or line of text, that identifies information about a web server’s browser and operating system. For example, it can indicate if a device is on Safari on a Mac or Chrome on Windows.
Here is an example UA string from a Mac laptop running Chrome:
To limit the passive fingerprinting of users, Google is reducing components of the UA strings in their Chromium browsers and introducing Client Hints. When there is a trusted relationship between first-party domain owners and third-party servers, Client Hints can be used to share the same data.
This transition began in early 2022 with bigger expected changes beginning in February 2023. You can see in the above example, Chrome/109.0.0.0, where browser version information is already no longer available from the UA string on this desktop Chrome browser.
How can you use User-Agent device attributes today?
UA string information can be used for a variety of reasons. It is a component in web servers that has been available for decades. In the AdTech space, it can be used in various ad targeting use cases. It can be used by publishers to better understand their audience. The shift to limit access and information shared is to prevent nefarious usage of the data.
What are the benefits of Client Hints?
By using Client Hints, a domain owner, or publisher, can manage access to data activity that occurs on their web properties. Having that control may be advantageous. The format of the information shared is also cleaner than parsing a string from User-Agents. Although, given that Client Hints are not the norm across all browsers, a long-term solution may be needed to manage UA strings and Client Hints.
An advantage of capturing and sharing Client Hint information is to be prepared and understand if there is any impact to your systems and processes. This will help with the currently planned transition by Google, but also should the full UA string become further restricted.
Who will be impacted by this change?
Publishers across the open web should lean in to understand this change and any potential impact to them. The programmatic ecosystem supporting real-time bidding (RTB) needs to continue pushing for adoption of OpenRTB 2.6, which supports the passing of client hint information in place of data from UA strings.
What is Google’s timeline for implementing Client Hints?
Do businesses have to implement Client Hints? What happens if they don’t?
Not capturing and sharing with trusted partners can impact capabilities in place today. Given Chromium browsers account for a sizable portion of web traffic, the impact will vary for each publisher and tech company in the ecosystem. I would assess how UA strings are in use today, where you may have security concerns or not, and look to get more information on how to maintain data sharing with trusted partners.
We can help you adopt Client Hints
Reach out to our Customer Success team at tapadcustomersuccess@experian.com to explore the best options to handle the User-Agent changes and implement Client Hints. As leaders in the AdTech space, we’re here to help you successfully make this transition. Together we can review the options available to put you and your team on the best path forward.
About our expert
Nate West, Director of Product
Nate West joined Experian in 2022 as the Director of Product for our identity graph. Nate focuses on making sure our partners maintain and grow identity resolution solutions today in an ever-changing future state. He has over a decade of experience working for media organizations and AdTech platforms.
Latest posts
Experian Marketing Services pinpoints rising social network sites in new study – Instagram and Pinterest lead the pack According to a new study by Experian Marketing Services, niche social networks significantly increased their market share of all visits to social sites, with Instgram and Pinterest leading the pack. The following graph illustrates the global growth between July 2011 and July 2012, based on share of visits to all sites by country: Social site North America Australia Hong Kong New Zealand Singapore UK Instagram 17,319% 362% 132% 843% 8121% 2028% Pinterest 5124% 798% 2373% 643% 623% 1489% Other niche social networks that have experienced significant gain include Stock Twits in the US, Redidt in Australia, and FanPop in the UK. According to Bill Tancer, head of Global Research at Experian Marketing Services, the growth of Instagram and Pinterest over the past year has been successful because they haven’t tried to be ‘another Facebook.’ Both networks are image based – something people love and relate to better than just words. For retail brands, sites like Pinterest present a great opportunity to promote products in a compelling and organized way to a wide group of people, globally. Deeper functionally, combined with a lower technical barrier to entry, will result in new leaders in social media being created, accepted and used within a matter of days – compared to the rate of adoption happening now over the course of weeks and months. Also included in the study for July 2011 to July 2012: Country Social network Description Percentage increase of market share of visits to All Sites between July 2011 to July 2012 North America www.skillwho.com Social networking community which allow users to find people with skills from friends, friends of friends, local area or the community. 7435% increase http://stocktwits.com StockTwits is an open, community-powered investment idea and information service. 943% increase Australia www.reddit.com Site where users vote for what is popular or not. 177% increase Brazil Google+ Google+ integrates social services such as Google Profiles, and introduces new services identified as Circles, Hangouts and Sparks. 5750% increase New Zealand www.reddit.com Site where users vote for what is popular or not. 107% increase Singapore https://steamcommunity.com Community site that assists users in finding games to play, people to play against, and serves as a meeting place for friends and team mates. 124% UK Google+ Google+ integrates social services such as Google Profiles, and introduces new services identified as Circles, Hangouts and Sparks. 476% http://www.fanpop.com Network of fan clubs for fans of television, movies, music and more to discuss and share photos, videos, news and opinions with fellow fans. 178% What social networks do you use most frequently? Do the results of this study surprise you at all? Feel free to share your thoughts with our readers in the comments section below.
The Republican and Democratic parties are gathering in the coming days to officially launch the Presidential campaigns of Mitt Romney and Barack Obama. In doing so, the candidates, the parties and their support groups will unleash unprecedented amounts of cash in an effort to influence American voters through advertising, much of it on TV. As such, Experian Simmons has released a new list of the top 20 television programs for reaching party loyals as well as three key swing voter segments. The segments come from the PoliticalPersonas consumer segmentation system, which classifies U.S. adults into one of 10 unique segments based on the individual’s political outlook and party ID as well as their attitudes and opinions towards key topics. The segments we will focus on in this post include the Super Democrats and Ultra Conservatives segments, which represent the most party loyal voters for Democrats and Republicans, respectively. We will also profile the TV preferences of three important swing voter segments during this election cycle, including: Mild Republicans, On the Fence Liberals and Green Traditionalists. For more information about the PoliticalPersonas segments, download the PoliticalPersonas Report. The shows in each list include those cable and broadcast TV shows with the highest concentration of viewers from each segment. For example, The Daily Show with Jon Stewart on Comedy Central has the highest concentration of Super Democrats of any non-news cable or broadcast show on TV. Likewise, Rules of Engagement on CBS has the highest concentration of Mild Republicans. Candidates, political organizations, and even traditional advertisers trying to connect with any of these voting segments would be wise to consider advertising on the programs listed below. For more information on PoliticalPersonas, watch our Webcast.
Marketers have always struggled to target the right consumer with the right offer. And with more than 313 million people live in the United States according to the U.S. Census, the challenge is more difficult than ever. With the proliferation of the Internet and mobile technology, today’s consumer operates differently and expects more from their favorite brands. To adapt to that new American consumer, marketers are using highly targeted strategies to drive interest. These can be messages that are relevant to a few hundred consumers or detailed one-on-one communications that target individuals at the point of sale or online. But some marketers struggle to execute these tactics effectively. Most segmentation is currently done prior to a campaign, meaning that marketers determine which message a consumer will receive before ever interacting with that individual. Unfortunately, with the rapid nature of purchasing decisions and buying transactions, businesses often miss opportunities because it takes too long to get the right message to the right consumer. To keep up, marketers need to collect intelligence at the point of contact so they can understand each individual consumer’s habits and preferences during that connection. This intelligence can then feed modeling algorithms that enable automatic offers based on an individual’s preferences. To develop a strategy around real-time marketing intelligence, marketers should take the following steps: Clean existing data – at the root of any intelligence strategy is data. Information determines a company’s ability to reach target individuals – and understand who they are and what they’re interested in. Unfortunately, if the data that feeds intelligence efforts is inaccurate, marketers are simply unable to communicate with or understand consumers. Ensuring the validity of contact information, internal records and third-party data elements helps organizations target consumers and ensures that sophisticated analysis is as precise as possible. Identify strategies – organizations should analyze their target markets and determine which communication channels could benefit from a more personalized customer experience. Marketers should decide how they want to change each communication to help drive the desired action from each consumer. Consider personalizing website displays based on geographic regions, customizing an introductory message or revamping loyalty campaigns based on purchase history and consumer interests. Real-time intelligence – marketers should build models to help predict the best offers for each target audience. These models can be designed to take into account demographic and behavioral information, as well as purchase history and internal data. Marketers can feed these models with intelligence gained at the point of contact to prompt consumers in real time with specific, relevant offers. As marketers continue to enhance and refine targeting efforts, it’s important to gain customer insight. Those who leverage these advanced technologies and strategies will create stronger customer engagement. Segmenting customers and taking measurable action in real time are advanced techniques that appeal to many marketers today. Achieving this level of interaction allows organizations to optimize marketing efforts and provide the right offer at the right time to the right consumer.