Go with your gut instinct on this one and just steer clear of it.
Because if they can not prove to you on their own website that they are not a scam
then they probably are.
''If you need to ask if a project is a scam then it probably is.'' Bullshit, people are concerned with scams because, well, many icos are scam. Just because someone might think it's a scam, doesn't mean it is. I mean personally I always treat every ICO like a scam from the beginning. There isn't really ''solid'' proof they can provide to know whether they are for real or not, sometimes the team and pictures are accurate and real people and they still scam in the end.