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.
An effective fix for this issue was implemented and this issue is now resolved.
Posted Jan 20, 2025 - 20:24 UTC
Identified
The cause of this issue has been identified and a fix is being implemented.
Posted Jan 20, 2025 - 19:48 UTC
Investigating
Cloudflare is investigating issues with Device Posture checks within the HTTP proxy component within Gateway. Performance and connectivity through Gateway may be impacted. We are working to understand the full impact and mitigate this problem. More updates to follow shortly.
Posted Jan 20, 2025 - 17:32 UTC
This incident affected: Cloudflare Sites and Services (Gateway, Zero Trust).