Compliance guidance
PCI DSS 11.6.1 change detection
Review evidence for payment-page and security-impacting HTTP-header changes, alert handling, scope, and retained decisions.
Last reviewed September 12, 2026
PCI DSS v4.0.1 Requirement 11.6.1 addresses change and tamper detection for payment pages and security-impacting HTTP headers as received by the consumer browser. Use SiteWall records to review observed change, alert context, affected scope, follow-up actions, and retained evidence. SiteWall does not determine whether a specific implementation satisfies the requirement.
For PCI DSS requirement 11.6.1, SiteWall can support review of security-relevant HTTP header and payment-page content changes, integrity observations, scheduled-audit context, and response records. The organization defines expected values, review cadence, escalation, and response procedures.
What to review
Use the following table to understand how each area supports the task.
| Area | How to use it |
|---|---|
| Change observations | Review change observations in the active project, follow the linked source record, and preserve its observation, interpretation, and owner decision context. |
| Review process | Review the documented process in the active project, follow the linked source record, and preserve its observation, interpretation, and owner decision context. |
| Response boundaries | Compare the same resource across representative sessions, pages, and time windows. Treat load and execution timing as investigation context; correlate it with deployments and browser conditions before assigning cause. |