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

Backfilled classification of 6 changed platform(s) from this run (no live AI analysis at run time).

Amazon noise Google Google Shopping Data Catalogue noise Google Youtube Data Catalogue noise Shein noise Snapchat noise X minor

Per-platform breakdown (6 platforms analyzed)

Amazon noise high confidence No visible change. The page's technical fingerprint changed, but no text or links differ - invisible page machinery, not content. Classified automatically without AI analysis.

Google Google Shopping Data Catalogue noise high confidence The diff shows only truncated text lines (both old and new versions end with 'suggesti' and 'energ') with no visible substantive differences. Combined with the history note indicating this page alternates between render variants, this change represents a reversion to a previously seen state and should be classified as noise rather than a structural or content change.

Google Youtube Data Catalogue noise high confidence The change removes URL query parameters (?target=_blank and ?hl=xx language variants) from language selector links while preserving the underlying language options. This is a rendering variant alternation consistent with the documented history of this page's content-hash reversions, making it noise rather than a structural or meaningful link change.

Shein noise high confidence The change swaps 'Quick Ship' for 'EU Warehouse' in a navigation menu link label, representing a render variant alternation. Given the documented history of 9 reversions in 10 changes on this page, this is part of the known content block oscillation pattern and carries no research significance.

Snapchat noise high confidence No visible change. The page's technical fingerprint changed, but no text or links differ - invisible page machinery, not content. Classified automatically without AI analysis.

X minor high confidence A single-line terminology update replacing 'Tweet object' with 'Post object' and 'Tweet object' with 'Post objects'. This is a minor wording change with no impact on research access, datasets, links, or substantive policy content.

Data Catalogue Monitor

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