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The Emergency Stop Button Enhanced Script can be programmed to pause an entire Google Ads account if its associated website/domain is down. This script finds the ad groups associated with the domain that is down (which can be defined in the settings), labels them, and pauses them. The labels are used to reactivate the ad groups when the issue is fixed. 

For example, this script can be used to pause an ad group from showing ads when a website's payment processor is down and orders can't be placed. 

The automated procedure of the script helps avoid making any human errors during the stressful minutes between finding an issue and dealing with it. After the script is enabled for an account, it'll find what needs to be stopped, labels it, pauses it, and resumes it back when the domain/URL starts working.

The script should always have two settings created; one to pause ad groups and the other to resume ad groups. This is to ensure that the ad groups can be resumed when the domain is back up. This script also has to be run manually in the Google Ads account, and should not be scheduled because it will pause/resume the ad groups that have that domain.