Introduction

After years of postponements, third-party cookies are gone from Chrome, following Safari and Firefox which removed them years earlier. This is the most significant structural change to digital advertising and audience tracking in over a decade, and many UAE businesses have not yet fully accounted for what it means for how they target, retarget, and measure their digital marketing.

Third-party cookies were the invisible infrastructure behind most of what marketers thought of as standard digital advertising capabilities: cross-site remarketing, interest-based targeting, cross-device attribution, and competitive intelligence based on browsing behaviour. Without them, the advertising ecosystem operates differently, and strategies built around the assumption of third-party cookie availability need to be reconsidered.

This article explains what was actually lost, what is replacing it, and what UAE businesses should be doing differently as a result.

What Third-Party Cookies Were and Why They Mattered

A third-party cookie was a small data file placed on a user’s browser by a domain other than the website they were visiting. An advertising network, for example, could place a tracking cookie on a user’s browser when they visited a news site, then read that same cookie when the user later visited a retailer’s website, building a picture of the user’s browsing behaviour across many sites and using it to deliver targeted advertising.

This cross-site tracking capability underpinned several marketing functions that UAE businesses relied on:

Cross-site remarketing: Showing ads to users who visited your website as they browsed other sites across the internet. The classic “you viewed a product on our site and now you see our ad everywhere” experience.

Interest and behaviour targeting: Ad platforms using browsing data collected across many sites to build audience segments (in-market for a car, interested in financial services, recent visitor to competitor websites) that advertisers could purchase.

Cross-site attribution: Understanding which digital touchpoints a customer interacted with before converting, including ads seen on publisher sites, not just clicks directly on your own properties.

Third-party audience data: Buying audience segments from data brokers who had aggregated browsing behaviour at scale.

All of these have been significantly affected by the deprecation of third-party cookies, though the nature and scale of impact varies by channel and approach.

What Actually Changed When They Were Deprecated

Google’s removal of third-party cookie support from Chrome was the last major browser to make this change, following Safari’s Intelligent Tracking Prevention (from 2017) and Firefox’s Enhanced Tracking Protection. This means the full cross-browser effect of cookie deprecation is now in force across the overwhelming majority of web browsing in the UAE and globally.

Practically, this means:

• Cross-site cookie tracking no longer works in Chrome, which accounts for a significant majority of UAE browser usage
• Remarketing audiences built through third-party cookie data are no longer being refreshed with new Chrome user data
• Attribution models relying on third-party cookie trails across sites are no longer accurate
• Interest-based targeting built on cross-site browsing data is diminished, though not entirely eliminated (platform-specific data from within Meta, Google, and similar walled gardens remains)

What UAE Businesses Lose Without Them

Precision cross-site remarketing. The ability to retarget a specific person who visited your website as they browse unrelated content across the web has been significantly reduced. In-platform remarketing (within Meta, Google, TikTok) continues to function through those platforms’ own first-party data, but the broader open web remarketing landscape has contracted.

Behavioural audience targeting based on third-party data. Audience segments built on aggregated cross-site browsing behaviour are less available and less accurate than they were. Some data brokers and demand-side platforms have found partial workarounds, but the precision of these audiences has declined.

Accurate cross-channel attribution for non-click interactions. Understanding the full journey from an ad impression to a conversion is harder without the cookie trail that previously connected those events across sites and devices.

Competitive audience insights based on browsing behaviour. Some tools that allowed advertisers to target users who had recently visited competitor websites relied on third-party cookie data and now have reduced functionality.

What the Advertising Industry Is Using Instead

Platform-native first-party data. Meta, Google, TikTok, and LinkedIn all operate their own data ecosystems using data collected directly from their platforms. Targeting within these platforms, using data gathered from user behaviour inside the platform rather than across the open web, continues to function and in many ways has improved in precision.

Contextual targeting. Serving ads based on the content of the page being viewed rather than the profile of the viewer. A UAE financial services firm running ads on finance news sites is targeting context rather than individual tracking, which is less personalised but GDPR and privacy-compliant without relying on personal data.

Server-side tracking and conversion APIs. Meta’s Conversions API, Google’s Enhanced Conversions, and similar server-side data-sharing tools send conversion data directly from a business’s server to the ad platform rather than relying on a browser-based cookie. This method is more resilient to browser privacy restrictions.

First-party data clean rooms and matching. Large advertisers are using privacy-preserving methods to match their own customer data with platform audience data at an aggregated level, enabling targeting without exposing individual user data.

Google’s Privacy Sandbox. Google’s set of privacy-preserving APIs, including the Protected Audience API and Attribution Reporting API, provide limited but functional alternatives to some third-party cookie use cases, operating within Chrome’s browser without exposing individual data to publishers or advertisers.

How First-Party Data Strategy Changes Everything

The deprecation of third-party cookies has fundamentally shifted the competitive advantage in digital marketing from who can buy the best audience data to who has built the best first-party data asset. First-party data, collected directly from interactions with your own customers and prospects through your website, app, email list, CRM, and in-store systems, is now the primary foundation of effective digital advertising.

UAE businesses that have consistently collected and maintained high-quality first-party data (email lists, customer phone numbers for WhatsApp, website visitor data through server-side tracking, and purchase or enquiry history in a CRM) are in a structurally better position than businesses that relied on third-party data for targeting.

For UAE service businesses that have not yet built a deliberate first-party data strategy, the practical starting point is straightforward. Ensure that your website has Meta Pixel and Google Tag implemented server-side via their respective Conversions APIs. Build your email and WhatsApp subscriber list through genuine value exchange. Maintain accurate customer records in a CRM that can be used as a source audience for ad platform matching.

A digital marketing agency in UAE that offers first-party data strategy as part of its digital marketing scope, rather than just campaign management, is positioned to help businesses build the asset that now underpins effective paid advertising rather than simply spending what the client has on a diminished targeting infrastructure.

What UAE Businesses Should Do Now

Audit your current attribution and tracking setup. If your Google Analytics or Meta Ads attribution is relying heavily on cookie-based tracking, your reported performance numbers may be significantly understating actual results. Implementing server-side tracking via Meta CAPI and Google Enhanced Conversions should be a priority.

Invest in email and WhatsApp list building. Your own contact list is a first-party data asset that is immune to cookie deprecation. A strong email or WhatsApp subscriber base can be used as a Custom Audience in Meta, a Customer Match list in Google, and a seed for lookalike targeting that performs as well or better than cookie-based interest audiences.

Shift remarketing budgets toward in-platform retargeting. Meta, Google, and TikTok all offer in-platform remarketing using their own first-party data. Audiences built from people who have engaged with your content on those platforms continue to function and in some cases outperform historical cookie-based remarketing. A digital marketing agencies in Dubai managing paid media will already have migrated client campaigns away from cookie-dependent audiences and toward these platform-native retargeting pools.

Review your attribution model expectations. With cross-site cookie tracking gone, your attribution reports will not credit all the impressions and touchpoints that influenced a conversion. Expect under-reported cross-channel impact and build in assumptions about dark traffic when assessing channel performance.

For UAE businesses whose digital marketing strategy also encompasses organic search and AI visibility alongside paid channels, the article on how to measure social media ROI for UAE businesses covers the measurement framework that makes sense of performance signals across both paid and organic channels in the post-cookie environment.

FAQ

Does cookie deprecation affect ads running within Meta, Google, or TikTok specifically? No. These platforms use their own first-party data collected from user behaviour within their platforms. Cookie deprecation primarily affects cross-site tracking on the open web, not the in-platform data that powers advertising within the major platforms themselves.

Is my Google Analytics data still accurate after cookie deprecation? Google Analytics 4 uses a combination of first-party cookies, server-side signals, and modelling to estimate behaviour that was previously tracked through third-party cookies. Data quality varies by implementation, but a correctly set up GA4 with Consent Mode and enhanced measurement provides a reasonable picture, with some gaps in cross-site journey attribution.

Do UAE businesses have specific legal requirements around cookie consent? The UAE’s data protection regulations have been evolving, and businesses serving users in jurisdictions like the EU are also subject to GDPR requirements around cookie consent. Consulting a legal advisor on the specific obligations applicable to your business and audience is recommended.

Will third-party cookies ever come back? Google abandoned its previous timeline approach and has confirmed that third-party cookies are deprecated from Chrome permanently. While Privacy Sandbox APIs provide some limited alternatives, the era of cross-site cookie-based tracking is over.

Conclusion

Third-party cookie deprecation is not a problem that fixes itself or goes away. It is a permanent structural change to the digital advertising infrastructure that UAE businesses have been operating within for a decade.

The businesses that adapt fastest are the ones that treat it as an opportunity rather than just a loss. Building first-party data assets is now a genuine competitive advantage. Implementing server-side tracking correctly is now a performance differentiator, not a technical nicety. And building audiences from genuine engagement with your brand rather than purchasing behavioural data from brokers is increasingly both the more privacy-compliant and the more effective approach. A social media agency in Dubai that understands first-party data strategy, not just creative and posting, will be the more valuable partner in this new environment.