Alert

The alert is a banner of red words that pulses across the top of the screen while you are in danger. It names the two most urgent warnings. When nothing is wrong, it is not there.

The warnings, from the most urgent, are low health with your health as a number out of your most, POISONED or CURSED, the debuffs that stop you from acting, and your pets in trouble. Low health means 35 percent or less of your health. The debuffs are disarmed, webbed, frozen in place, panic and the slowing ones, each shown by the name the server sends in capitals. For hurt pets, the banner says PET HURT for one and a count with PETS HURT for several.

Alert, poisoned — The banner for a poisoned player who is low on health. It reads LOW HEALTH, 38 out of 135, and then POISONED.

Opening it

The alert is on when you enter the game, and it shows itself whenever there is something to warn about.
The Alert action, in the Menu Actions group of the Actions window, turns the banner off and on again. You can put the action on a hotbar.

Using it

The banner takes no clicks. A click goes to the world under it.