CellWall

CellWall develops SiteWall, a client-side security and browser security platform that helps organizations discover, monitor, control, and govern everything running on their websites in the customer’s browser. SiteWall provides continuous visibility into first-party and third-party JavaScript, external resources, web sessions, browser APIs, network requests, data access, and website supply-chain behavior. Security, engineering, and compliance teams use SiteWall for third-party JavaScript monitoring, client-side attack-surface management, web supply-chain risk management, script inventory, provider intelligence, resource monitoring, load-flow analysis, anomaly detection, issue investigation, and historical incident context. The platform maps providers and resources, shows how scripts load and interact, identifies the browser capabilities and data they access, and tracks changes in behavior over time. SiteWall also turns observed runtime behavior into enforceable security policies. Teams can apply zero-trust defaults to newly discovered resources, restrict network destinations and geographic regions, block or allow providers and resources, and define granular browser permissions. Permissions can be derived from detected resource usage, helping teams move from visibility to practical client-side control without replacing their existing development, monitoring, or security workflows. For governance and audit readiness, SiteWall organizes technical evidence around PCI DSS, GDPR, and ISO 27001 requirements. Teams can review requirement status, evidence, findings, remediation actions, script authorization, business justification, and monitoring context, then export audit-ready compliance reports. SiteWall is designed for CISOs, CTOs, application-security teams, web engineering teams, and compliance leaders that need a clear, continuously updated answer to what code runs in the browser, what it can access, where it communicates, and whether it complies with policy.