This is not theoretical — Slack had a domain wide outage recently. https://slack.engineering/what-happened-during-slacks-dnssec-rollout/ https://slack.engineeri

This is not theoretical — Slack had a domain wide outage recently. https://slack.engineering/what-happened-during-slacks-dnssec-rollout/ https://slack.engineering/what-happened-during-slacks-dnssec...