Table 2.

Rating of web-based interventions according to the European Monitoring Centre for Drugs and Drug Addiction criteria.

Intervention	Criteria							Ratingg
	1a	2b	3c	4d	5e	6f			Online since		URL
DrogArt	A	A	A	A	A		AAAAA		2006 (Reduser app, 2013)		https://www.drogart.org/
Med.over.net	A	A	A				AAA		2000		https://med.over.net/
This is me	A	A	A				AAA		2001		http://www.tosemjaz.net/

^aInterventions should be web-based (eg, websites, apps, or social media apps).

^bInterventions should include interactive elements that require the user to do something actively to receive individual feedback.

^cInterventions should be professional services (ie, not simple chats between consumers).

^dThe target group should be young drug consumers.

^eThe focus should be on illicit drugs, ideally new psychoactive substances.

^fThe effectiveness of the intervention should have been evaluated scientifically.

^gA indicates it met one criterion, while AAAAAA means it met 6 criteria.