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heads-up platform & cms 3 sources 1 min read

Cloudflare HTTP 502 Errors Hit Hong Kong, San Jose, Perth Regions

What happened

Cloudflare experienced a series of HTTP 502 error incidents across multiple regions between May 12-13, 2024. The issues began in Perth on May 12 at 03:40 UTC with both HTTP 4xx and 502 errors, followed by separate incidents in San Jose, CA starting at 14:27 UTC on May 13, and Hong Kong beginning at 14:49 UTC the same day. All three incidents were resolved within hours, with Perth taking the longest at approximately 1 hour 10 minutes. The company implemented fixes and mitigations for each region independently.

Business impact

Enterprise websites using Cloudflare in these regions likely experienced service disruptions, potentially causing revenue loss and user abandonment during the outage windows. For companies in regulated industries, the 502 errors could trigger compliance monitoring alerts and require incident documentation.

Background

HTTP 502 errors indicate that Cloudflare's edge servers received invalid responses from origin servers, typically due to connectivity issues or server overload. As one of the world's largest CDN providers, Cloudflare incidents can affect millions of websites simultaneously. Regional clustering of these errors suggests potential infrastructure or routing issues rather than isolated server problems.

What this means for your team

Review your CDN failover procedures and ensure monitoring systems can detect 502 errors quickly across all regions where you have users. Configure alerts for Cloudflare status updates if you rely heavily on their services. Test your origin server capacity to handle direct traffic in case CDN services become unavailable. Document these incidents for compliance teams who may need to report service disruptions.

What to watch

Monitor whether Cloudflare publishes a post-incident analysis explaining the root cause of these regional failures. Watch for any additional regional incidents that might indicate broader infrastructure issues.

Sources

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