National authorities regularly perform online checks to try to identify whether products notified via RAPEX are available on online markets. Online check techniques may include web-crawling, data mining, data scraping, etc.

National authorities apply various follow-up techniques in parallel and ideally do not limit their activities to only one of them.

The Member State in which a manufacturer, a representative or an importer of the notified product is established (‘Main Member State’) ensures appropriate follow-up to notifications distributed through the RAPEX application. The ‘Main Member State’ often has better legal and technical means of obtaining information on the notified case, which will help other Member States to undertake effective follow-up activities.