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

Substantive changes were detected across 5 platforms: Bing and Bing DE restructured support links, AliExpress removed major page sections, and Google Search catalogues (both EN and DE) underwent structural reorganization or link removal.

Temu noise Wikipedia noise Wikipedia Content Library Mediawiki Content History V1 noise Wikipedia Editors Information Geoeditors Daily noise Bing substantive Bing DE substantive Aliexpress noise Google Google Search Data Catalogue substantive Google Youtube Data Catalogue noise Google DE Google Search Data Catalogue DE substantive Google DE Youtube Data Catalogue DE noise

Per-platform breakdown (11 platforms analyzed)

Temu noise high confidence The change consists of four lines of garbled token strings (mmMwWLliI0O&1 repeated) with no semantic content or functional meaning. This appears to be corrupted data, session tokens, or cache artifacts rather than substantive content or structural changes to the researcher instruction page.

Wikipedia noise high confidence The change replaces 'About Wikimedia' with 'Wikimediaapiportal-skin-button-about-wm-label', which appears to be a UI label or CSS class identifier rather than visible content. This is a backend/template change with no functional impact on the actual catalogue information or research data presented.

Wikipedia Content Library Mediawiki Content History V1 noise high confidence No actual content changes detected. The page hash changed but zero lines were added or removed, with no link modifications. This represents a cache refresh or metadata-only update with no research significance.

Wikipedia Editors Information Geoeditors Daily noise high confidence No actual content changes detected. All metrics show zero lines added/removed and no links modified, indicating only metadata or non-substantive page element changes.

Bing substantive high confidence Navigation links were restructured with 7 links added and 10 removed, including a migration from answers.microsoft.com to learn.microsoft.com/answers and consolidation of account/billing pages. While some changes are trailing slashes (noise), the substantive link migrations (Community forums endpoint, Product safety URL rewrite, Account & billing consolidation) represent meaningful outgoing link changes relevant to DSA transparency monitoring.

Bing DE substantive high confidence Multiple outgoing links were replaced with functionally different URLs: Community Forums migrated from answers.microsoft.com to learn.microsoft.com/answers, account support restructured to a unified accounts-billing endpoint, and a Product Safety Guidelines page replaced a direct Surface support link. These represent real changes to researcher access points and support resources.

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 Google Search Data Catalogue substantive high confidence The page structure was reorganized, reducing total items from 23 to 22 entries. One link was removed ('Create & manage portfolios with Google Finance'), one entry was reworded ('Try' → 'Use'), and all sequential numbering was updated. This represents a substantive reorganization of the catalogue page structure.

Google Youtube Data Catalogue noise high confidence The change removes URL parameters (?target=_blank and ?hl=xx language variants) from language selector links while converting them to plain text labels. This is a technical URL normalization that does not affect actual content access or research value—all 38 removed links are parameter variants of the same base documentation page.

Google DE Google Search Data Catalogue DE substantive high confidence One support article was removed from the catalogue page ("Portfolios mit Google Finanzen erstellen und verwalten"), reducing the total number of linked resources from 23 to 22. This constitutes a real removal of an outgoing link from the DSA Article 40(4) transparency catalogue, not a parameter variant or formatting change.

Google DE Youtube Data Catalogue DE noise high confidence The change removes language selector links (with ?hl= query parameters) and replaces them with plain text language names. This is a URL-parameter variant change affecting presentation only, not substantive content or real API/dataset access endpoints. The underlying pages remain accessible; only the navigation UI changed.