Scaleway is a brand of Online.net (in fact while it was in beta it was called Online Labs). They have DDoS protection on their network: https://www.online.net/en/dedicated-server/ddos-arbor

For the best protection you need to pay more - in the case of Scaleway, their pricing page (https://www.scaleway.com/pricing) says it's available with the "premium" bandwidth option - but anecdotally I've heard even the basic protection is pretty good.