# Additional online advertising transparency 39(1) — DSA — provision context

> Focused context for a single provision (39(1)), curated from overview.legal on 2026-10-06. Canonical: https://overview.legal/laws/dsa/art-39#par-1
> Verify against the official text (EUR-Lex / wetten.overheid.nl) before relying on it.

Part of **Additional online advertising transparency** (DSA, full article: https://overview.legal/laws/dsa/art-39).

## Provision text

### 39(1)

Providers of very large online platforms or of very large online search engines that present advertisements on their online interfaces shall compile and make publicly available in a specific section of their online interface, through a searchable and reliable tool that allows multicriteria queries and through application programming interfaces, a repository containing the information referred to in paragraph 2, for the entire period during which they present an advertisement and until one year after the advertisement was presented for the last time on their online interfaces. They shall ensure that the repository does not contain any personal data of the recipients of the service to whom the advertisement was or could have been presented, and shall make reasonable efforts to ensure that the information is accurate and complete.


## Topics on this provision

- **Online Interface Design and Organization** — https://overview.legal/topics/online-interface-design-organization-dsa
  This topic is needed to specifically address DSA requirements regarding how online service providers must design and organize their interfaces to ensure transpa
- **VLOP/VLSE Framework** — https://overview.legal/topics/vlop-vlse-regulatory-framework-overview
  The content title specifically focuses on 'Very large online platforms and very large online search engines' as a distinct regulatory category under the DSA. A 
- **Personal Data** — https://overview.legal/topics/persoonsgegevens
  Information relating to identified or identifiable natural persons

## Cited by (exact-provision citations)

- **WebGroup Czech Republic a.s. v European Commission** (case-law) — https://overview.legal/posts/132148
- **WebGroup Czech Republic a.s. v European Commission** ¶9 (case-law, Court of Justice of the European Union) — https://overview.legal/posts/132148
- **WebGroup Czech Republic a.s. v European Commission** ¶6 (case-law, Court of Justice of the European Union) — https://overview.legal/posts/132148
- **Aylo Freesites LTD v European Commission** ¶34 (case-law, General Court) — https://overview.legal/posts/132252
- **Aylo Freesites LTD v European Commission** ¶4 (case-law, General Court) — https://overview.legal/posts/132252
- **WebGroup Czech Republic, a.s. v European Commission** ¶114 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶102 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶83 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶67 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶65 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶41 (case-law, General Court) — https://overview.legal/posts/132249
- **WebGroup Czech Republic, a.s. v European Commission** ¶24 (case-law, General Court) — https://overview.legal/posts/132249

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Generated by overview.legal · https://overview.legal/laws/dsa/art-39#par-1 · 2026-10-06