Each request is bucketed by its HTTP response status. A status of error means the request never produced a response (network failure, DNS, TLS, timeout, or aborted).
2xxSuccess
Request completed successfully (200, 201, 204, …).
3xxRedirect
Followed automatically; only the final status is recorded.
400Bad Request
Server rejected the request payload or query.
401Unauthorized
Missing or invalid credentials.
403Forbidden
Authenticated but not allowed (often WAF/bot protection).
404Not Found
The URL does not exist on the target server.
408Request Timeout
Server closed the connection before responding.
429Too Many Requests
Rate limited — lower concurrency or duration.
500Server Error
Target crashed or threw an unhandled exception.
502Bad Gateway
Upstream/proxy returned an invalid response.
503Service Unavailable
Target is overloaded or down — common under load.
504Gateway Timeout
Upstream did not respond in time.
errorNetwork / Aborted
No HTTP response: DNS, TLS, connection reset, or timeout.