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Outage in Cloudflare

HTTP 520 Errors Affecting HEAD Requests

Resolved Minor
March 18, 2026 - Started about 1 month ago - Lasted about 4 hours
Official incident page

Incident Report

Summary AI Generated

Cloudflare experienced increased HTTP 520 errors specifically affecting HEAD requests for 4.2 hours. The issue was identified and a fix was implemented to resolve the problem.

Cloudflare is investigating an increased level of HTTP 520 errors, specifically affecting HEAD requests. We are working to analyse and mitigate this problem. More updates to follow shortly.

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Latest Updates ( sorted recent to last )
IDENTIFIED about 1 month ago - at 03/18/2026 09:53AM

The issue has been identified and a fix is being implemented.

INVESTIGATING about 1 month ago - at 03/18/2026 09:17AM

Cloudflare is investigating an increased level of HTTP 520 errors, specifically affecting HEAD requests. We are working to analyse and mitigate this problem. More updates to follow shortly.

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