How to Read Traffic and Network Logs in a CDN Console: From Dashboard Anomalies to Individual Requests

The CDN console has two layers: dashboards answer 'when and how much', logs answer 'who and what'. This article provides a three-minute inspection sequence, essential log fields, and troubleshooting paths for four types of anomalies: traffic spikes, cache hit rate drops, 403 surges, and 502/504 errors.