Maintenance for the week of March 9:
• NA megaservers for patch maintenance – March 9, 4:00AM EDT (8:00 UTC) - 12:00PM EDT (16:00 UTC)
• EU megaservers for patch maintenance – March 9, 8:00 UTC (4:00AM EDT) - 16:00 UTC (12:00PM EDT)
• ESO Store and Account System for maintenance – March 11, 9:00AM EDT (13:00 UTC) - 1:00PM EDT (17:00 UTC)
The maximum critical resistance is 7518 or 110% from gear, trait, and CP. This is not a hard cap; it is the maximum that can presently be stacked in the game.
The maximum critical damage modifier is 115%, like wise from gear, passives, and CP.
Therefore 100% mitigation of critical damage is presently not possible.
Stacking for maximum critical resistance isn't recommended since the gear and CP trade-offs are so great that such a build would be severely restricted in damage output and sustain. That's why many players are satisfied with 2k to 3k critical damage resistance.