Each site at <name>.vecml.app is a static website that a VecML user published from their own workspace. VecML hosts it; the user owns its content.
VecML is a product of VecML Inc. These sites are not VecML's own pages and share nothing with the VecML product: no account, no sign-in and no data of yours reaches them.
Reports about a site on this domain, such as phishing, malware, scams, impersonation or copyright: write to abuse@vecml.com and name the full address of the site.
Security holes in VecML itself: write to security@vecml.com; see also /.well-known/security.txt.