HONEST

Unofficial and Honest Cloudflare System Status

HTTP/3 performance regression
Starting as early as at least 2022-10-26, users may experience a significant performance degradation when enabling HTTP/3 on their sites. Users are advised to disable HTTP/3 for better performance.

Update: Improvements have been made to HTTP/3 performance recently that greatly reduce the impact of this regression.

Sources:
Issues with Dynamic Steering Load Balancers
Incident Report for Cloudflare
Resolved
Cloudflare is aware of a limited number of cases where dynamic steering Load Balancers incorrectly routed traffic to a single pool. The root cause of the issue was identified and a fix was applied. The unexpected behaviour was noted between January 13th 23:00 UTC and January 14th 15:45 UTC.
Posted Jan 14, 2025 - 16:13 UTC
This incident affected: Cloudflare Sites and Services (Load Balancing and Monitoring).
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