Technologies/NGINX/nginx_server_zone_responses_4xx
NGINXNGINXMetric

nginx_server_zone_responses_4xx

The number of responses with 4xx status code.
Dimensions:None
Available on:DatadogDatadog (1)
Interface Metrics (1)
DatadogDatadog
The number of responses with 4xx status code.
Dimensions:None
Related Insights (1)
HTTP Error Rate Spikes Require Multi-Layer Analysiscritical

Increases in nginx_server_zone_responses_4xx or nginx_server_zone_responses_5xx require differentiation between client errors (4xx), NGINX configuration issues (502/503), and upstream failures (504, backend 5xx). The same metric can indicate completely different root causes depending on code distribution.