API Gateway 502: SpeedCE Network-Layer Triage Guide
Keywords: API gateway,502 error,gateway failure
Category: Cloud & Architecture
Tool: SpeedCE | English UI
502 can mean upstream is down or the gateway cannot reach upstream. SpeedCE HTTPS on the API hostname: nationwide red → infrastructure; partial red behind the gateway → upstream address/port.
Map first, then Kong/Nginx/APISIX logs. https://www.speedce.com.
Test After Architecture Changes
Any change to containers, gateways, CDNs, or object storage should be validated from the public internet with SpeedCE. A healthy internal curl does not mean users can reach you.
Tool: https://www.speedce.com
SpeedCE — China provinces & global nodes · one-click connectivity testing
Site: https://www.speedce.com | English UI: https://www.speedce.com/?lang=en | Forum: https://bbs.speedce.com | Contact: speedceads@gmail.com