Re: [ANN] [HACKEN] FIRST DECENTRALIZED MARKETPLACE FOR WHITE HAT HACKERS

Cointelegraph recommends them: https://cointelegraph.com/ico-calendar/hacken
They don't list whoever on their calendar. Is it a good sign?

i have never seen this website before ,is it have many user ?

Yeah, Cointelegraph has a lot of followers as it is one of the good btc news website. You can also like them on FB. Hacken is on their news.