What alerts you when your application becomes inaccessible?

The option that alerts you when your application becomes inaccessible is the Single-URL browser monitor. This type of monitoring solution simulates a user accessing a specific URL of your application in order to check its availability and performance. If the browser monitor detects that the application is down or not responding as expected, it generates an alert, allowing you to take immediate action to diagnose and resolve the issue.

The primary function of the Single-URL browser monitor is to proactively test the accessibility of your web application from various geographic locations. By doing so, it ensures that you are notified of outages or performance degradations before users experience issues. This monitoring tool is critical for maintaining application uptime and ensuring a smooth user experience.

User feedback, on the other hand, relies on real user input, which may come too late in alerting the team of access issues since users will typically report problems after they experience them. Maintenance notifications relate more to scheduled downtime or activities that are intentionally planned, not unexpected outages. System updates are generally related to software upgrades or patches and do not directly monitor application accessibility. Thus, while other options provide some level of feedback regarding application health, the Single-URL browser monitor is specifically designed to notify you of accessibility issues in a timely manner.