Unlike Temu and AliExpress, Shein's investigation has not yet concluded — which is precisely when an evidentiary architecture has the most to offer, before the record is fixed.

Temu and AliExpress were fined for distinct failures under the DSA, but both rest on the same structural feature — diligence documented solely by the party whose diligence is in question.

Following the AliExpress decision, this blueprint sets out how any very large platform can seal its detection and compliance-check timelines with an independent third party, before the fact.

The Commission sanctions AliExpress for products that remained online despite detection. That diligence timeline remains entirely self-established — SOURCE 0 documents the gap the DSA's periodic audit does not close.