Synthetic monitoring tools should never cry wolf

AlertSite is the 'Early Warning System' you can trust to monitor your websites, web apps, and APIs from all over the world and within your private networks.
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SmartBear Named a Visionary by Gartner® in the 2023 Magic Quadrant™ for API Management

Rely On AlertSite For API, Application, and Website Monitoring

Unified view of UI and API Performance
350+ global nodes & private network coverage
Integrates with Ops and DevOps tools

Never Waste Time Triaging False Alerts Again

You shouldn't be burdened by the fear and the consequence of whether an alert is real or false. AlertSite monitors your UI and API layer for availability, performance, and functionality without the alert fatigue of other monitoring tools.

Create Monitors Without Jumping Through Hoops

Creating Web and API monitors in AlertSite is intuitive and effortless. Codelessly add new web monitors with DejaClick, our point-and-click web recorder, and API Monitors in just a few clicks using an API Endpoint URL or OpenAPI Specification file. Or, reuse test cases like Selenium Scripts or SoapUI tests to create new monitors.

Get To The Root-Cause of Performance Deviation

Don't let false alerts and erroneous data cloud your visibility into application health. AlertSite surfaces availability and performance metrics that help identify the root-cause of the performance issue.

Tracking Application Performance 24x7

"We can conduct tests before applications go live to ensure they are ready to transact business and then monitor them continuously in case any future conditions impact their performance. With AlertSite tracking application performance 24x7, we are able to resolve issues well before they impact our business partners and customers."

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Use Cases

Web Monitoring
Whether it's web applications or websites, AlertSite monitors beyond availability to detect performance anomalies and engage the right people when deviations occur.

Cloud Monitoring
Enhance mobility by monitoring your cloud-based applications. AlertSite monitors across public and private clouds, so you can have full visibility into the health of your applications.
SLA Monitoring
Make sure you're meeting or receiving the standards in your Service-Level Agreements. AlertSite monitors and reports on SLA requirements.

API Monitoring
Monitor multi-step API transactions, verify payloads, and reduce your MTTR, all without writing a single line of code.
Mobile Monitoring
Monitor mobile web apps and API performance to make sure your end users receive a stellar experience.

Application Monitoring
Resolve application performance issues fast by monitoring proactively for availability, speed, and functionality.

Take it From Our Customers' Experience

  • Reduce Support Tickets
  • Improve Performance and User Experience
  • Decrease MTTR Rapidly Realize ROI
  • Empower DevOps teams with instant feedback

Monitoring with AlertSite empowers you Ops teams to move quickly, know immediately when something is actually wrong in production, send targeted alerts, and ultimately transform the digital experience you're able to deliver. AlertSite seamlessly integrates with OpenAPI/Swagger definitions, SoapUI, and Ready API so that you take your functional testing efforts to the next level - monitoring functionality globally or from within your network.

Thousands of companies have made AlertSite their monitoring partner

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Learn more about AlertSite

Monitor all your digital assets and be the first to know when performance degrades.


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  • Intuitive SaaS tool for seamless, easy deployment
  • Monitor Private and Public assets
  • Access to 350+ global network of nodes
  • Test-On-Demand for immediate observability