Digital marketing in 2024 is no longer just about posting on social media and optimizing a few SEO tags. The rules of the game have changed in areas that most guides do not cover: measuring conversions, user consent, and the reliability of advertising targeting. These three topics now determine the profitability of any digital strategy.
Consent Mode v2 and server-side measurement: the technical foundation to master
Google has made Consent Mode v2 mandatory since March 2024 for any campaign targeting the European Economic Area. Without this update, Google Ads remarketing and conversion tracking tags stop collecting actionable data. Advertisers who have not adapted their implementation see their conversion signal diminish.
The consequences for management are direct. Automatic bidding (Smart Bidding) relies on the quality of the signal received. Poorly configured consent skews optimization and drives up acquisition costs.
Server-side tracking provides a concrete solution to this problem. It involves transmitting conversion events from an intermediary server rather than from the browser. The site leblogdumarketing.com regularly addresses these attribution topics for advertisers. Safari and Firefox have been blocking third-party cookies for several years now, making browser measurement even less reliable in these environments.
Third-party cookies in Chrome: what really happened in 2024
Many strategies published in early 2024 recommended preparing for the end of third-party cookies in Chrome. Events took a different direction. In July 2024, Google abandoned its plan for a complete removal of third-party cookies, replacing it with a model based on user choice.
Google subsequently removed most of the replacement technologies from Privacy Sandbox. The conclusion for marketing teams is clear: betting everything on a single technical substitute solution was not the right gamble.
Field feedback varies on this point. Some advertisers had heavily invested in Privacy Sandbox APIs. Others had chosen to strengthen their first-party data. The latter find themselves in a more stable position, as their architecture does not depend on a timeline dictated by a browser publisher.
What this changes for advertising targeting
Targeting via third-party cookies remains technically functional in Chrome, but its effectiveness now depends on the active consent of each user. In practice, first-party data becomes the most reliable targeting lever: email addresses from forms, purchase histories, CRM interactions.
Lookalike audiences built on this first-party data offer more consistent targeting than third-party segments, whose coverage fluctuates based on the browser and consent level.
Content strategy and SEO in the face of the Search Generative Experience
SEO remains a pillar of digital marketing. The way Google presents results is evolving with the Search Generative Experience (SGE), which produces synthetic answers directly on the results page. The click-through rate on organic links is affected for certain informational queries.
Several adjustments deserve consideration for a content strategy adapted to 2024:
- Produce content that answers specific questions with original data, as SGE relies on sources it can cite and summarize
- Structure articles with clear semantic tags (H2, H3, lists, tables) to facilitate extraction by generative engines
- Favor long and in-depth formats on topics where field expertise makes a difference, rather than generic content easily synthesized by AI
Content that provides an analysis absent from competing results retains its value, even when generative answers capture part of the traffic.
Social media and influencer marketing: signals to watch
Social media remains a channel for acquisition and engagement. However, the rules of organic visibility continue to tighten. TikTok imposes a short and native format, Instagram pushes Reels, LinkedIn favors personal posts. Each platform prioritizes native content published without outgoing links.
On the influencer marketing side, the available data does not allow for a universal ROI conclusion. Results vary significantly by sector, the creator’s audience size, and the type of product promoted. A few trends emerge from observed practices:
- Micro-influencers (under 50,000 followers) often generate a higher engagement rate than larger accounts, at a much lower cost
- Long-term collaborations with a small number of creators produce more stable results than scattered one-off campaigns
- Transparency about the sponsored nature of the content, required by regulation, does not significantly affect performance when the creator is perceived as legitimate in their subject
DMA and DSA: a European regulatory framework that weighs on platforms
The Digital Markets Act (DMA) and the Digital Services Act (DSA) redefine the conditions for accessing data from major platforms. These European regulations impose new transparency obligations on recommendation algorithms and targeted advertising. For advertisers, this translates into less granularity in targeting on certain platforms and an increased need to diversify channels.
Building a proprietary audience (newsletter, CRM database, community) remains the best protection against algorithm and regulatory changes. Companies dependent on a single acquisition channel expose themselves to sharp performance declines with each platform or legal framework update.
