Yes. MetaTrader must allow WebRequest to api.mqlshield.com. You can set an offline grace period for short outages.
MT4 and MT5 Expert Advisors, indicators and scripts.
Existing licences keep working. New activations are paused until you upgrade.
Yes — you decide how many rebinds are allowed, or let buyers do it from the customer portal.
Every plan includes a 14-day trial with no card required.