--- title: Digital Services Act DSA — definition | RGM® Glossary url: https://realgrowthmatters.com/glossary/digital-services-act/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/digital-services-act/ --- # Digital Services Act (DSA) D·S·Anoun (law) The rules of the feed — Europe's platform law, with hard lines through ad targeting and a public ledger for every ad. Term : Digital Services Act (DSA) Applies : All platforms in the EU (Feb 17, 2024) Ad rules : No minors targeting, no sensitive profiling Transparency : Labeled ads + public repositories (VLOPs) ## Forms & parts of speech DSA · noun The EU's content-and-ads law. "The **DSA** ended targeted ads to EU minors outright - and put every big platform's ads in a public library." ## Definition in plain terms The Digital Services Act (DSA) is the EU's regulation of online platforms' responsibilities — illegal-content handling, recommender transparency, systemic-risk duties — with a set of advertising rules that landed directly on marketers: targeted advertising to minors is banned outright, profiling-based ads using sensitive data categories (religion, ethnicity, health, sexual orientation) are prohibited, every ad must be labeled with who paid and why the user sees it, and very large platforms must maintain public ad repositories. It entered into force in November 2022, bound very large platforms from August 2023, and has applied to all platforms since February 17, 2024. ## The mechanics The DSA splits duties by size: all intermediaries owe baseline transparency, while VLOPs and VLOSEs — platforms over 45 million EU users, designated by the Commission — carry the heavy obligations (risk assessments, audits, researcher data access, the ad libraries). The advertising provisions translate into marketer-visible mechanics. The minors ban is absolute for targeting: platforms responded by disabling targeted advertising to known under-18s in the EU, which reshapes youth-adjacent media plans toward contextual buys (the COPPA entry's contextual-is-the-business-model logic, now continental and to 18). The sensitive-category prohibition finished what platform policy started — the DETAILED-TARGETING catalog's pruning of health, belief, and orientation proxies has DSA force behind it in the EU, and 'clever' proxy targeting of protected traits is now a legal exposure, not a hack. Ad labeling standardizes the 'why am I seeing this' disclosure, and the VLOP ad repositories make every campaign publicly auditable — competitors, researchers, and regulators can browse creatives, targeting parameters, and reach, which quietly ends the era of unobservable dark campaigns on major platforms. Alongside its sibling DMA (market conduct) and GDPR (data processing), the DSA completes the EU triptych: what may be processed, how gatekeepers must behave, and what platforms — and the ads on them — must disclose. ## When it matters The DSA matters to anyone advertising into the EU: youth-market plans rebuilt around contextual, sensitive-adjacent verticals (health, faith, dating) re-checked against the profiling ban, and the awareness that every major-platform campaign now sits in a public library. It matters strategically as precedent — the ad-repository and minors rules are templates other jurisdictions copy. The discipline is map-and-verify: know which audiences and proxies the law forecloses, design EU youth and sensitive-vertical campaigns contextually from the start, and treat the public repositories as both compliance exposure and free competitive intelligence. **Worked example.** A gaming brand's EU plan leans on its global playbook - teen-skewing interest audiences, retargeting pools, lookalikes from young players - until the February 2024 applicability date forecloses it: targeted ads to minors are banned, and the platforms' enforcement removes the audiences outright. The rebuild is contextual by design: placements bought against gaming content and creators rather than user profiles, age-appropriate creative cleared per market, and measurement reset to aggregate brand-lift since user-level youth tracking is off the table. The compliance review also catches a sensitive-category proxy in an adjacent campaign - a 'wellness interest' stack functioning as a health profile - and retires it before a regulator reads the public ad repository the same way the brand's competitors already do. Two quarters in, the contextual youth plan delivers comparable reach at 9% higher CPMs and zero legal surface - and the team now mines the DSA ad libraries monthly, because everyone's EU campaigns became everyone else's case studies. **Failure modes to watch.** Youth plans assuming targeted reach the law forecloses; sensitive-category profiling surviving as 'interest' proxies until the repository makes it public; ad labeling treated as platform plumbing while the disclosures misdescribe the advertiser; ignoring the free competitive intelligence in the VLOP ad libraries; and reading the DSA as content moderation law while its ad articles rewrite the EU media plan. ## Synonyms & antonyms ### Synonyms Digital Services ActDSAEU platform regulation ### Antonyms Digital Markets Act (sibling)self-regulation era ## Origin & history The DSA entered into force in November 2022 as the content-and-conduct half of the EU's platform package — very large platforms bound from August 2023, all platforms from February 17, 2024 — and its advertising articles (minors, sensitive categories, labeling, repositories) made it the first law to regulate ad targeting's substance, not just its data. Etymology: [source](https://digital-strategy.ec.europa.eu/en/policies/digital-services-act). ## Usage trends Search interest for this term over the last five years: [View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=digital%20services%20act&date=today%205-y) ## Common questions What is the Digital Services Act? : The EU's platform-responsibility regulation — illegal-content duties, transparency, systemic-risk rules for very large platforms — applying to all platforms since February 17, 2024, with hard advertising provisions. What does the DSA change for advertisers? : Targeted ads to minors are banned in the EU, sensitive-category profiling ads are prohibited, every ad carries paid-by and why-you-see-this labeling, and very large platforms publish public ad repositories. How do the DSA, DMA, and GDPR fit together? : GDPR governs data processing, the DMA governs gatekeepers' market conduct, and the DSA governs platforms' content and advertising duties — the EU triptych advertisers now operate inside. ## Related tools & calculators - tool[CAC calculator](/tools/cac-calculator/) - tool[LTV:CAC calculator](/tools/ltv-to-cac-ratio-calculator/) ## Resources & people to follow - reference[European Commission — the Digital Services Act](https://digital-strategy.ec.europa.eu/en/policies/digital-services-act) - reference[DSA Observatory — the DSA and online advertising](https://dsa-observatory.eu/2025/08/01/what-does-the-dsa-mean-for-online-advertising-and-adtech/) - referenceRGM analysis — design EU youth and sensitive-vertical plans contextually from the start; the ad libraries are everyone's case studies Curated, non-competitor resources verified per term. ## Related training - module[Performance marketing](/training/performance-marketing-foundations/) ## Disciplines Areas of marketing where digital services act (dsa) is a core concern: [Performance marketing](/training/performance-marketing-foundations/)[Growth strategy](/training/growth-marketing-foundations/) ## Read next ## Related terms [Digital Markets Act (DMA)](/glossary/digital-markets-act/)[GDPR](/glossary/gdpr/)[COPPA](/glossary/coppa/)[Behavioral targeting](/glossary/behavioral-targeting/)[Detailed targeting](/glossary/detailed-targeting/) ## Sources 1. trends[Google Trends — "digital services act"](https://trends.google.com/trends/explore?q=digital%20services%20act&date=today%205-y)