The Reliability Platform for Modern Engineering Teams
Detect issues before users do, communicate status to stakeholders, and resolve incidents faster with AI-powered analysis.
World-class engineering and SRE teams depend on Checkly
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One platform, complete reliability
From detecting issues to resolving them, Checkly provides everything modern engineering teams need to build reliable applications.
Detect
Monitor endpoints, APIs, and user journeys
Communicate
Alert teams and update status pages
Resolve
AI-powered root cause analysis
Three products, one platform
Each product can be used separately or together for complete reliability coverage.
Checkly Detect
Test and monitor applications, services, and infrastructure
Checkly Communicate
Notify stakeholders about incidents and outages
Checkly Resolve
Investigate and resolve incidents faster
Seven check types for complete coverage
From simple uptime pings to complex browser-based user journeys, monitor everything that matters.
URL Checks
Basic uptime & edge issues
Monitor the availability of your HTTP/HTTPS endpoints. Verify status codes, SSL validity, and response times from multiple global locations.
Why it matters
Fastest "is it up?" signal - catch outages before customers notice
Use cases: Health endpoints, SSL certificates, CDN availability
TCP Checks
Databases & internal services
Low-level connectivity tests ensuring ports are open and accepting connections. Monitor databases, caches, and internal microservices.
Why it matters
Detects silent network failures that cloud providers miss
Use cases: MySQL, Postgres, Redis, internal microservices
DNS Checks
Domain health & migrations
Verify hostname resolution for A, AAAA, CNAME, and MX records. Ensure your domains resolve correctly across the globe.
Why it matters
DNS failures cause total outages - catch issues during migrations
Use cases: Domain migrations, DNS propagation, nameserver health
Heartbeat Checks
Jobs & pipelines
Your system pings Checkly within a defined time window. If it doesn't, you get alerted immediately.
Why it matters
Only way to catch silent job failures in cron jobs and pipelines
Use cases: Billing jobs, ETL pipelines, background workers
API Checks
Endpoint correctness
Programmable tests validating payloads, schema, status codes, headers, and performance for REST and GraphQL APIs.
Why it matters
Guarantees contract stability for your frontend teams
Use cases: Auth endpoints, payment APIs, third-party integrations
Multistep API Checks
Complex workflows
Chain multiple API requests where each step can extract and reuse data from previous calls. Test complete user flows.
Why it matters
Ensures multi-step logic works end-to-end across services
Use cases: Signup flows, checkout APIs, token refresh flows
Browser Checks
User journeys
Full user journeys executed in real Chromium browsers using Playwright. Validate UI flows, clicks, navigation, and visual assertions.
Why it matters
Catches issues customers actually feel - not just API health
Use cases: Login flows, checkout paths, A/B test validation
Monitoring as Code
Built for how you actually work
Define monitoring right next to your application code. Version control your monitors. Test locally before deploying. Ship with confidence.
import { ApiCheck, AssertionBuilder } from 'checkly/constructs'
new ApiCheck('user-api-health', {
name: 'User API Health Check',
frequency: 10, // Check every 10 minutes
locations: ['us-east-1', 'eu-west-1', 'ap-southeast-1'],
request: {
url: 'https://api.example.com/v1/users',
method: 'GET',
headers: {
'Authorization': 'Bearer {{API_KEY}}'
}
},
assertions: [
AssertionBuilder.statusCode().equals(200),
AssertionBuilder.responseTime().lessThan(500),
AssertionBuilder.jsonBody('$.status').equals('healthy')
]
})Why teams choose Checkly
Global Coverage
Monitor from 20+ locations across 6 continents. Understand your users' real experience worldwide.
Zero False Positives
Multi-region verification ensures alerts are real. Only notify when 3+ locations confirm an issue.
OpenTelemetry Native
Built-in trace correlation connects synthetic checks to backend services. See the full picture.
AI-Powered Analysis
Rocky AI provides instant root cause analysis with fix suggestions and code examples.
Integrates with your existing stack
Connect Checkly to your alerting, observability, and CI/CD tools.
Ready to build more reliable applications?
Join thousands of engineering teams who trust Checkly to keep their applications running smoothly.