My friend told me that XTBCO is unregulated, would you help me to verify XTBCO's license?

https://xtbco.com/    

Yes, XTBCO is unregulated. 

Our investigation revealed that XTBCO has been misusing the information of a licensed forex brand to appear legitimate, which seems to be a case of identity theft. Furthermore, the Commissione Nazionale per le Società e la Borsa (CONSOB) has ordered the blackout of XTBCO's website because it is offering financial services without the proper authorization. More information can be found in the CONSOB press release.

Therefore, trading with XTBCO is not safe. Investors engaging with this fraudulent platform may expose themselves to fraud and identity theft, with their interests not protected by rules and laws. We strongly suggest traders steer clear of XTBCO and other unlicensed platforms, and instead choose fully regulated ones with established reputations.