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"2026-10-12T08:06:50.144119+00:00", "finished_utc": "2026-10-12T08:06:51.145126+00:00", "http_code": 200, "http_connect": 200, "exitcode": 0, "success": true, "category": "http-success", "ssl_verify_result": 0, "time_connect_ms": 46.007, "time_appconnect_ms": 529.919, "time_starttransfer_ms": 928.948, "time_total_ms": 929.007, "size_download": 0, "num_connects": 1, "observed_round_peak_established_proxy_tcp_connections": 4 }, { "proxy_alias": "T03", "target_id": "D05", "concurrency_limit": 4, "round": 2, "started_utc": "2026-10-12T08:06:51.145126+00:00", "finished_utc": "2026-10-12T08:06:51.434211+00:00", "http_code": 200, "http_connect": 200, "exitcode": 0, "success": true, "category": "http-success", "ssl_verify_result": 0, "time_connect_ms": 36.339, "time_appconnect_ms": 129.856, "time_starttransfer_ms": 239.656, "time_total_ms": 239.723, "size_download": 0, "num_connects": 1, "observed_round_peak_established_proxy_tcp_connections": 4 } ], "cells": [ { "proxy_alias": "T01", "concurrency_limit": 1, "started_utc": "2026-10-12T08:03:59.202991+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 222, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 172, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:04:13.050718+00:00" }, { "proxy_alias": "T01", "concurrency_limit": 2, "started_utc": "2026-10-12T08:04:23.053229+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 93, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 123, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:04:31.474246+00:00" }, { "proxy_alias": "T01", "concurrency_limit": 4, "started_utc": "2026-10-12T08:04:41.477914+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 48, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 111, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:04:48.337101+00:00" }, { "proxy_alias": "T02", "concurrency_limit": 1, "started_utc": "2026-10-12T08:04:58.341141+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 274, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 229, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:05:16.020873+00:00" }, { "proxy_alias": "T02", "concurrency_limit": 2, "started_utc": "2026-10-12T08:05:26.028902+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 120, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 117, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:05:35.407689+00:00" }, { "proxy_alias": "T02", "concurrency_limit": 4, "started_utc": "2026-10-12T08:05:45.415844+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 117, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 115, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:05:54.627752+00:00" }, { "proxy_alias": "T03", "concurrency_limit": 1, "started_utc": "2026-10-12T08:06:04.633533+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 169, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 1, "observed_peak_established_proxy_tcp_connections": 1, "tcp_observer_samples": 200, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:06:17.937575+00:00" }, { "proxy_alias": "T03", "concurrency_limit": 2, "started_utc": "2026-10-12T08:06:27.940868+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 106, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 2, "observed_peak_established_proxy_tcp_connections": 2, "tcp_observer_samples": 112, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:06:36.628000+00:00" }, { "proxy_alias": "T03", "concurrency_limit": 4, "started_utc": "2026-10-12T08:06:46.637828+00:00", "rounds": [ { "round": 1, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 48, "tcp_observer_errors": 0 }, { "round": 2, "peak_active_curl_processes": 4, "observed_peak_established_proxy_tcp_connections": 4, "tcp_observer_samples": 112, "tcp_observer_errors": 0 } ], "finished_utc": "2026-10-12T08:06:53.623149+00:00" } ], "summary": [ { "concurrency_limit_global": 1, "attempts": 30, "http_successes": 30, "transport_errors": 0, "http_non2xx_responses": 0, "categories": { "http-success": 30 }, "observed_tcp_peak_min": 1, "observed_tcp_peak_max": 1, "successful_timing_denominator": 30, "time_connect_ms": { "median": 43.5945, "min": 35.25, "max": 118.629 }, "time_starttransfer_ms": { "median": 1185.705, "min": 234.193, "max": 3690.314 }, "time_total_ms": { "median": 1185.7735, "min": 234.245, "max": 3690.366 } }, { "concurrency_limit_global": 2, "attempts": 30, "http_successes": 30, "transport_errors": 0, "http_non2xx_responses": 0, "categories": { "http-success": 30 }, "observed_tcp_peak_min": 2, "observed_tcp_peak_max": 2, "successful_timing_denominator": 30, "time_connect_ms": { "median": 40.953, "min": 34.546, "max": 92.825 }, "time_starttransfer_ms": { "median": 1143.959, "min": 236.088, "max": 3380.399 }, "time_total_ms": { "median": 1144.0265, "min": 236.161, "max": 3380.452 } }, { "concurrency_limit_global": 4, "attempts": 30, "http_successes": 30, "transport_errors": 0, "http_non2xx_responses": 0, "categories": { "http-success": 30 }, "observed_tcp_peak_min": 4, "observed_tcp_peak_max": 4, "successful_timing_denominator": 30, "time_connect_ms": { "median": 43.102999999999994, "min": 34.845, "max": 108.931 }, "time_starttransfer_ms": { "median": 1176.1525000000001, "min": 225.097, "max": 3568.242 }, "time_total_ms": { "median": 1176.2185, "min": 225.161, "max": 3568.304 } } ], "tcp_method": "Windows IP Helper GetExtendedTcpTable IPv4 table, about20ms sampling; curl PID and proxy endpoint match in memory", "limits": [ "three reserved Dedicated proxies", "one Windows origin, single session", "HEAD headers only, no browser/application proof", "no throughput or uptime measurement", "not randomized; concurrency levels executed1,2,4 per proxy", "destination/server/cache/network variation included", "TCP peak is sampled lower bound, not contractual connection limit", "no whole-pool, product-comparison or geographic claims" ] }