Short answer
Through two things that belong together: a findable place on your site that explains your use of AI, and a dated record of what was actually measured at a given moment. A state without a date proves nothing, because websites change.
Why that is
Article 50 requires no formal record; the duty is to inform, not to document. The question arises anyway, because any dispute turns on what stood on the page at a particular time. Our check P4 therefore measures whether a linked, findable transparency notice exists — and it is deliberately classified as an advisory point, never as a violation, because such a page is good practice and useful evidence but not an express requirement of Article 50. We keep that distinction sharp: nothing gets reported as a violation that the regulation does not demand.
This is measured in check point P4 — Findable AI transparency notice (Art. 50).
What this means in practice
Three steps. One: create a short page explaining your use of AI and link it from the footer of every page. Two: make the link text recognisable — "AI Transparency", "AI Notice", "Use of AI"; a link labelled "More" is found neither by a human reviewer nor by an automated one. Three: capture the state with a date instead of relying on memory, at minimum after every change to the chat or to your image pipeline.
Check it on your own page
The free check gives you a finding per check point on screen, with what was measured and the evidence behind it. If you need it as a document, the paid fix pack includes a timestamped PDF report for that specific scan. Such a document evidences a measurement — it certifies no legal status.
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Legal note
This page provides general information on the EU AI Act — it is not legal advice and not a legal assessment of your individual situation (cf. German Federal Court of Justice, judgment of 9 September 2021, I ZR 113/20). It does not replace review by a lawyer. When in doubt, consult one.