Error 1102
Error 1102 Worker CPU Time Limit Exceeded Error
What This Error Means
Error 1102 indicates that a Cloudflare Worker script exceeded the CPU time limit allocated to it. Cloudflare imposes strict limits on how much actual processing time a worker can use (e.g., 10ms on the free plan, 50ms on paid) to ensure performance at the edge.
Common Causes
- Inefficient code performing heavy calculations.
- Infinite loops or complex recursion in the worker script.
- Processing large amounts of data synchronously.
- Using expensive cryptographic functions unnecessarily.
How to Fix It (For Users)
- 1 Notify the site owner.
- 2 There is no workaround for users.
For Site Owners / Developers
- Optimize your Worker code to be more efficient.
- Offload heavy processing to your origin server or a background task.
- Upgrade to the Cloudflare Workers Unbound plan for higher limits.
- Profile your worker to identify CPU bottlenecks.
When It Is NOT Your Fault
If the site's code is poorly optimized.
Check if this outage affects everyone globally
This error often indicates a wider problem. Use our tool to verify if the site is down for everyone.
Check Website Status →Recommended Tool to Prevent This Error
Fix DNS resolution issues and protect your site from DDoS attacks with Cloudflare.