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

Of 19 platforms monitored, 4 substantive changes were identified: Snapchat (cookie banner removal), AliExpress (authentication flow restructuring), Google Search Data Catalogue (regional link swap), and Google Shopping DE (new return attribute added); the remaining 15 platforms showed only noise or cosmetic updates.

Wikipedia noise Wikipedia Content Library Mediawiki Content History V1 noise Wikipedia Editors Information Geoeditors Daily noise Xnxx minor Tiktok noise Shein minor Linkedin DE noise Snapchat noise Snapchat DE noise Aliexpress noise Xvideos noise Google noise Google Google Search Data Catalogue substantive Google Google Shopping Data Catalogue noise Google Youtube Data Catalogue noise Google DE noise Google DE Google Search Data Catalogue DE noise Google DE Google Shopping Data Catalogue DE substantive Google DE Youtube Data Catalogue DE noise

Per-platform breakdown (19 platforms analyzed)

Wikipedia noise high confidence Eight lines removed consist entirely of MediaWiki interface elements (Print/export menu, book creation, PDF download, and printable version links) and navigation structure. These are sidebar/chrome elements with no bearing on the DSA Article 40(4) compliance data catalogue content itself.

Wikipedia Content Library Mediawiki Content History V1 noise high confidence No line-level text differences detected despite hash change. This indicates a non-substantive modification such as whitespace, metadata, or caching artifact with no functional impact on the catalogue page content or accessibility.

Wikipedia Editors Information Geoeditors Daily noise high confidence No line-level text differences detected despite URL hash change. The page content remains functionally identical, indicating a non-substantive update such as a cache refresh, metadata update, or technical artifact with no research impact.

Xnxx minor high confidence The change reformats the DSA Data Catalogue page with markdown heading syntax (#, ###) and restructures field descriptions into bold key-value pairs, but contains no new datasets, removed access points, or substantive policy changes. The underlying research data offerings and access methods remain functionally identical.

Tiktok noise high confidence No line-level text differences detected despite hash change. This indicates a non-substantive modification such as whitespace, metadata, or invisible formatting that does not affect the actual content or research data catalogue information.

Shein minor high confidence A single line containing a [Sale] link with javascript:; placeholder was removed. This is a minor UI element removal with no impact on DSA Article 40(4) transparency data catalogue content or research access.

Linkedin DE noise high confidence Only the relative timestamp ('Vor 7 Monaten' → 'Vor 8 Monaten') was updated, which is an automatically generated metadata field that increments over time. This reflects passage of time rather than any substantive change to the page content, documentation, or transparency information.

Snapchat noise high confidence No change to the catalogue. Everything that changed on this page was outside the researcher-data section - menus, banners, or promotional elements. The catalogue text itself is identical.

Snapchat DE noise high confidence No line-level text differences detected and zero lines added or removed. The hash change without corresponding content modifications indicates a technical artifact (likely URL parameter, session token, or invisible metadata change) rather than substantive platform transparency data changes.

Aliexpress noise high confidence No change to the catalogue. Everything that changed on this page was outside the researcher-data section - menus, banners, or promotional elements. The catalogue text itself is identical. The original classification from before this correction is preserved in this record.

Xvideos noise high confidence No line-level text differences detected and no links were added or removed. The page hash changed but the content remains functionally identical, consistent with minor parameter variations or invisible metadata updates.

Google noise high confidence The diff shows HTML structure conversion from plain text to markdown/semantic HTML with added anchor links and formatting tags. The substantive content remains identical; only the rendering layer changed. This is a technical markup update with no new information or functionality exposed to researchers.

Google Google Search Data Catalogue substantive high confidence One outgoing link was replaced: the German Google products page (google.de) was swapped for the Austrian Google products page (google.at). This represents a genuine change in catalogue resource linking, not a URL parameter variant or cosmetic edit.

Google Google Shopping Data Catalogue noise high confidence One outgoing link was replaced with a functionally identical alternative (google.de → google.at), both pointing to Google's products page with identical parameters (?intl/en/about/products?tab=uh). This is a regional URL variant with no change to content, access conditions, or research-relevant information.

Google Youtube Data Catalogue noise high confidence Language selector links were converted from plain text to clickable links with ?hl= locale parameters. These are URL parameter variants of the same base page, not new substantive endpoints or real functional changes to the catalogue. The cookie notice addition is metadata and does not affect research-relevant content.

Google DE noise high confidence A single UI button label changed from 'Ausblenden' (Hide) to 'Ok' (Ok) in German interface. This is a trivial interactive element text change with no impact on researcher-relevant content, data access, or substantive information on the DSA transparency page.

Google DE Google Search Data Catalogue DE noise high confidence A link was replaced with a functionally equivalent variant: the domain changed from google.de to google.at while the path and parameters remain identical (?intl/en/about/products?tab=uh). This is a geographic domain variant of the same resource, not a substantive change to catalogue access or documentation.

Google DE Google Shopping Data Catalogue DE substantive high confidence A new product attribute 'Rückgabe [return]' was inserted into the Google Shopping data catalogue with an associated support link (https://support.google.com/merchants/answer/17081382), and a regional URL variant was updated (google.at instead of google.de). This represents a substantive addition to the documented product feed schema with meaningful new content, not merely a link parameter variant.

Google DE Youtube Data Catalogue DE noise high confidence Language selector navigation was converted from plain text to hyperlinks with ?hl= locale parameters. All 24 links point to the same page with different language query parameters, which is a URL-parameter variant rather than new substantive content or access points. Additionally, some existing documentation links were updated to include ?hl=de parameter normalization across the page.