The Upstream Outage Tax: Why Vendor Health Visibility Is Now an Agency Margin Line

Every retainer an agency signs carries an uninsured exposure: the third-party vendors its client deliverables depend on. When those vendors degrade, the agency absorbs the blame, the firefight, and sometimes the SLA penalty, even though it controlled none of the failing infrastructure. Monitoring and incident ops converts that exposure into a priced, client-facing layer, and the agencies that sell it first stop paying the outage tax out of their own margin.