Proxy speed test: latency & throughput through a proxy vs direct, in pure curl — https://quantumproxies.io/residential-proxies

proxy-speed-test.sh

#!/usr/bin/env bash
# Proxy speed test: latency + download throughput through a proxy vs direct.
# Works with any HTTP proxy; example endpoint is QuantumProxies residential
# (rotating :9000) -> https://quantumproxies.io/residential-proxies
#
#   export QP_USER=your_username QP_PASS=your_password
#   ./proxy-speed-test.sh https://speed.cloudflare.com/__down?bytes=10000000

URL="${1:-https://speed.cloudflare.com/__down?bytes=10000000}"
PROXY="http://${QP_USER}:${QP_PASS}@residentialboson.quantumproxies.io:9000"

fmt="   connect: %{time_connect}s  ttfb: %{time_starttransfer}s  total: %{time_total}s  speed: %{speed_download} B/s\n"

echo "== direct =="
curl -s -o /dev/null -w "$fmt" "$URL"

echo "== through proxy =="
curl -s -o /dev/null -x "$PROXY" -w "$fmt" "$URL"

# Tip: run 3-5 times and average — residential exits vary per rotation.
# Sticky sessions (port 10000, flag -session-x1-lifetime-10) give repeatable
# numbers because you measure the same exit every run.
# Credentials: https://app.quantumproxies.io/register