Sentinel is an uptime and infrastructure monitoring platform designed for software as a service teams and digital agencies. The primary function of the tool is to track the availability and performance of web assets to ensure that technical issues are identified before they impact the end user experience. By centralizing various monitoring tasks into a single interface, the platform aims to reduce the frequency of unexpected downtime and silent technical failures. The application provides a suite of monitoring capabilities including real time uptime and performance tracking, SSL certificate monitoring, and domain expiry alerts. It also includes a DNS configuration audit feature to detect unauthorized or incorrect changes to domain records. To facilitate rapid response, the system features multi channel alerts and third party integrations, allowing notifications to be sent directly to existing team communication tools. The platform also supports team management features for collaborative oversight of multiple projects or client accounts. The typical workflow involves connecting web properties to the Sentinel dashboard, where the system continuously audits the status of servers, security certificates, and domain registrations. When a service interruption or a configuration error is detected, the platform triggers an automated alert to the designated team members. This process is intended to replace manual checks and prevent common issues such as expired security certificates or unannounced site outages. Technical resources provided by the platform include a public roadmap, a help center for troubleshooting, and a blog for technical updates. The service is accessible via a web based account system where users can manage their monitoring parameters and integration settings. By focusing on proactive detection, the tool serves as an automated oversight layer for web infrastructure and digital service providers.