Define service level objectives and configure smart alerts
Common SLOs that growing startups need to track
API Availability
Successful API responses (2xx/3xx)
99.9% target
API Latency P99
P99 response time < 500ms
99% target
Error Rate
Server errors (5xx) below 0.1%
Auth Success Rate
Successful authentication attempts
99.5% target
Token Validation
JWT/Session token validations
Database Availability
Primary database uptime
99.99% target
DB Query Latency P95
Database query time < 100ms
Connection Pool
Available DB connections > 20%
Payment Success
Successful payment processing
Checkout Latency
Checkout flow completion < 3s
95% target
Job Success Rate
Background job completions
Queue Latency
Job queue wait time < 30s
Webhook Delivery
Successful webhook deliveries
External API Calls
Third-party API success rate
98% target
CDN Availability
Static asset delivery success
99.95% target
Cache Hit Rate
Redis/Memcache hit ratio > 80%
