Learn CLOUDFLARE-WORKERS with Real Code Examples
Updated Nov 25, 2025
Performance Notes
Ultra-low latency due to execution at edge nodes
Scales automatically with no limits
Cold-start nearly negligible due to V8 isolates
Execution time constrained by Cloudflare limits
Global availability improves responsiveness for worldwide users
Security Notes
Integrates with Cloudflare WAF and firewall rules
HTTPS enforced by default
Use Durable Objects or KV for secure state
Validate inputs to prevent attacks
Monitor Cloudflare security dashboards
Monitoring Analytics
Cloudflare dashboard logs
Request/response monitoring
Analyze KV/Durable Object usage
Integrate with third-party monitoring
Track edge latency and performance metrics
Code Quality
Follow JavaScript/TypeScript best practices
Keep Workers small and efficient
Unit test functions before deployment
Use KV/Durable Objects appropriately
Monitor and optimize execution time