Synthetic Monitoring
Synthetic Monitoring Tools Should Never Cry Wolf
AlertSite is the early warning system you can trust. Monitor your websites, web apps, and APIs from 350+ global nodes and inside your private networks — and get alerted only when it matters.
Trusted by teams around the world
Alerting you can trust
Never waste time triaging false alerts again
AlertSite's retry-on-failure logic and multi-location validation mean you only get paged when something is genuinely wrong. No noise. No alert fatigue. Just clear, actionable notifications the moment a real problem is detected.
Hybrid deployment
Monitor from everywhere — cloud and inside your firewall
Deploy private monitoring nodes inside your network with no firewall changes required. Combine internal monitoring with 350+ global public nodes for complete visibility into performance anywhere in the world.
API monitoring
Catch API failures before your customers do
Monitor REST, SOAP, and GraphQL endpoints continuously. Set response time thresholds, validate payloads, and chain multi-step API workflows — all with zero code required. Alerts integrate with PagerDuty, Slack, OpsGenie, and more.
Monitor every layer of your digital experience
From web UX to backend APIs, AlertSite covers everything your customers depend on.
Web Monitoring
Catch UX degradation before users do. Simulate real browser transactions across 350+ global locations.
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Cloud Monitoring
Monitor cloud-hosted apps and services with zero infrastructure — spin up monitors in minutes.
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SLA Monitoring
Prove you're meeting SLAs with accurate, third-party performance data your customers trust.
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API Monitoring
Monitor REST, SOAP, and GraphQL APIs continuously. Detect failures before they cascade.
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Mobile Monitoring
Measure real-user mobile performance — page load times, API response, and rendering across devices.
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Application Monitoring
Get end-to-end visibility into app performance with transaction-level insight from any network.
Learn more →"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."
Jeff Palmiero, Manager of Application Performance Monitoring, Raymond James
Start monitoring in minutes
Monitor all your digital assets and be the first to know when performance degrades.