Data Catalogue Monitor

Tracking every change on data catalogue pages that very large online platforms and search engines must publish under Article 40(4) of the Digital Services Act ↗.

25 platforms monitored

460 changes on record 38 significant 422 minor

85 monitoring runs

AI Assessment mixed claude / claude-haiku-4-5

Two substantive structural changes detected on AliExpress platforms (page redesign and marketing content addition) alongside noise-only updates on Google, Bing, and Booking, with no new DSA compliance documents identified.

Aliexpress noise Google Youtube Data Catalogue noise Google DE Youtube Data Catalogue DE noise Bing noise Booking noise

Per-platform breakdown (5 platforms analyzed)

Aliexpress noise high confidence No real change. The page alternates between two versions of itself (for example, with and without a login prompt), and this capture matched a version seen in a recent check. The original classification from before this correction is preserved in this record.

Google Youtube Data Catalogue noise high confidence Language selector links were converted from plain text to hyperlinked format with locale parameters (?hl=xx). These are URL parameter variants of the same base page, not new substantive endpoints or documentation resources. The cookie notice addition is metadata boilerplate. No new catalogue data or API access points were introduced.

Google DE Youtube Data Catalogue DE noise high confidence The change removed language selector links (URLs with ?hl= parameter variants) and replaced them with plain text language names. This is a UI/presentation change only—the actual content and access to the documentation remains identical, and the removed links are purely URL-parameter variants of the same page.

Bing noise high confidence Only a Trace Id value changed (cosmetic metadata update). No text content, links, or DSA compliance documents were added or removed.

Booking noise high confidence All 68 links changed are tracking/analytics parameter updates only (label and token values changed, session IDs refreshed). The underlying URLs remain identical in structure and destination. No new DSA compliance documents were added, removed, or modified. The DSA page itself (dsa.de.html) is referenced but not changed.

Data Catalogue Monitor

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