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.
Get in touch
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
Dextro clients to achieve increased accuracy in cross-device consumer measurement and engagement NEW YORK, Feb. 6, 2017 /PRNewswire/ — Dextro Analytics, a pure play analytics company that harnesses the power of human learning and artificial reasoning to drive more informed and effective consumer marketing, is partnering with Tapad, the leading provider of unified, cross-screen marketing technology solutions and now a part of Experian. The deal is effective immediately and the scope of the partnership covers North America. Additional terms were not disclosed. Leveraging Tapad's privacy-safe Device Graph™, Dextro Analytics will be able to significantly bolster its insight engine to decode complex customer journeys. Armed with more relevant, actionable insights, marketers can use Dextro's cross-screen, closed-loop measurement systems to reach and engage the right customer at the right time through the right channel. "Being able to accurately map consumer preferences, behaviors and journeys in a privacy-safe and unified way across devices is still one of the biggest pain points for marketers," said Ajith Govind, co-founder of Dextro Analytics. "At the same time, this partnership engages customers with the right message at the right time." "Detecting latent patterns and signals, and tracing backward- and forward-looking behavioral characteristics, are keys to sustaining a competitive advantage in a crowded space," said Manmit Shrimali, co-founder of Dextro Analytics. "With the proliferation of data and devices, connecting the dots is of paramount importance." "Dextro is solving some of the biggest challenges in analytics today," said Pierre Martensson, GM of Tapad's data division. "Our partners consistently see notable improvements in both budget allocation and device optimizations after integrating with the Tapad Device Graph, and I have every confidence that Dextro will be among them." For more information about Dextro Analytics' revolutionary approach to using human learning and artificial intelligence algorithms to solve business and analytical problems, please visit http://dextroanalytics.com/. For more information about Tapad's cross-platform advertising solutions, please visit https://www.experian.com/marketing/consumer-sync. Contact us today
NEW YORK & LOS ANGELES / BUSINESS WIRE / Jan. 30, 2017– Tapad, part of Experian, and Rubicon Project (NYSE: RUBI) announced today a new global partnership offering a unified, cross-device campaign delivery solution within an automated advertising marketplace. Tapad is the leading provider of unified, cross-screen marketing technology solutions and Rubicon Projectoperates one of the largest advertising marketplaces in the world. The Tapad Device Graph™, which enables buyers to expand their high-value display data signals to associated mobile devices, will be integrated across Rubicon Project’s leading advertising exchange and Orders platform, significantly improving consumer mobile reach. The new global partnership will empower Buyers within Rubicon Project’s exchange to find and engage audiences across their entire digital experience. Rubicon Project operates one of the world’s largest mobile exchanges connecting to approximately 1 billion unique mobile devices globally. “We’re excited to partner with Tapad to continue to provide our customers the very best data for managing their advertising businesses,” said Harry Patz, Chief Revenue Officer, Rubicon Project. “Cross-device delivery is crucial for buyers today with more than 81% of internet users currently relying on more than one device for digital access[1]. Through our partnership, buyers will be able to extend their desktop private marketplace campaigns to mobile, allowing them to find and engage their audience across devices, anywhere in the world. The net result will also benefit sellers; the increase in mobile reach will better position publishers and app developers to strategically capitalize on their inventory, ultimately increasing bid rates and mobile revenue across the board.” “Our partnership with Rubicon Project marks the first time advertisers and publishers alike are able to use cross-device solutions at significant scale outside of Google and Facebook,” said Pierre Martensson, GM of Tapad’s Data Division and APAC. “Our Device Graph will help Rubicon Project’s advertisers make more informed buying decisions and find the audiences who matter most.” Barry Adams, VP of Commercial Development at Bidswitch, said, “As digital advertising moves away from desktop and increasingly toward a mobile-first model, cross device data becomes critical to finding consumers. The rich data buyers will now be able to leverage at scale through the Tapad and Rubicon Project integration will enable us to provide a state-of-the-art cross-screen solution for the 150+ buying platforms that use our service, and the tens of thousands of advertisers they represent.” For more information about Rubicon Project’s inventory, please visit www.rubiconproject.com. For more information about Tapad’s cross-platform advertising solutions, please visit https://www.experian.com/marketing/consumer-sync. Contact us today
Tapad expands linear TV analytics solution, enabling optimal reach and frequency across TV and digital platforms NEW YORK, Jan. 24, 2017 /PRNewswire/ – Tapad, now a part of Experian, has partnered with WideOrbit, the leading provider of advertising management software for media companies, to develop the industry's first programmatic TV-buying platform powered by a device graph. Tapad is the leading provider of unified, cross-screen marketing technology solutions and was first to market with a device graph, the Tapad Device Graph™. WideOrbit's robust supply platform and industry-leading footprint offers access to premium TV inventory on top networks, reaching more than 99 million households across local affiliates. The partnership pairs Tapad's demand-side technology with WideOrbit's supply-side inventory. As a result, marketers can leverage cross-device audiences in their TV buys for the first time. Additionally, integrating the Tapad Device Graph™ with digital feedback loops and audiences both accelerates optimization and enables precise audience discovery for TV marketers. "The integration of WideOrbit's quality TV supply takes orchestrated cross-screen media buys to the next level," said Marshall Wong, Tapad's SVP of TV market development. "Marketers can now optimize TV campaigns within days instead of weeks. This also untethers them from buying against generic demographics like age and gender. By allowing brands to employ their own CRM or third-party data, we can move them much closer to audiences who will take action." "Integrating Tapad's device graph with WideOrbit's programmatic marketplace delivers enormous value to marketers looking to add TV to cross-device campaigns," said Ian Ferreira, EVP of programmatic at WideOrbit. "Television still delivers the most efficient reach of any medium, and Tapad's platform now allows marketers to purchase premium broadcast inventory that extends the power of cross-screen campaigns to TV with a single, unified solution." "Our clients build lasting relationships with consumers through thoughtful and pioneering marketing," said Jeff Giacchetti, VP of digital at Mediavest Spark. "The strategic partnership of demand-side technology and supply-side inventory makes it easier for brands to find efficient, incremental reach and are critical in this endeavor." For more information about Tapad's cross-platform advertising solutions, please visit https://www.experian.com/marketing/consumer-sync. Contact us today