HTTP/3 issue affecting R2 custom domains
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HTTP/3 issue affecting R2 custom domains Cloudflare operates global DNS, CDN, WAF, and edge network services. Outages here often affect many sites and APIs that sit behind their network.
resolved · 3 Sep 2026, 19:32 UTC
This incident has been resolved.
monitoring · 3 Sep 2026, 15:14 UTC
A fix has been implemented and we are monitoring the results.
identified · 1 Sep 2026, 14:46 UTC
The issue has been identified and a fix is being implemented.
investigating · 31 Aug 2026, 18:47 UTC
Some Firefox users may see delayed or failed asset loads on R2 custom domains due to an incorrect HTTP/3 advertisement. We are working on a fix.
5
Related incidents
72h 45m
This incident
3h 34m
Avg. resolution time
Slower
vs. average
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