Two networks, two jobs, and the reason people get this wrong:
| ISP proxies | Residential | |
|---|---|---|
| Gateway | isp.quanticdata.io:8000 |
resi.quanticdata.io:8080 |
| Hosted in | a datacenter, on an ISP-registered range | real consumer connections |
| Latency | low and stable | higher and variable |
| IP looks like | a residential ISP customer | a residential ISP customer |
| Billing | per IP | per GB |
| Use it for | checkout speed, monitoring | the queue, account pages, anything patient |
Speed matters at exactly one moment. Everything before that moment is patience, and paying ISP prices for patience is how people burn a budget before the drop.
See also sneaker proxies.
export QD_PROXY_USER=your_user QD_PROXY_PASS=your_pass
python3 latency_bench.py --country us --n 20 # measure before you commit
python3 stock_monitor.py products.json # residential, patient, cheap
bash preflight.sh # the 60-second sanity check| File | What it does |
|---|---|
gateways.py |
both networks, the username modifiers, one helper |
latency_bench.py |
p50/p95 latency and success rate, ISP vs residential |
stock_monitor.py |
jittered availability polling on residential exits |
preflight.sh |
credentials, geo, rotation and sticky, checked in one pass |
Any flow with a cart, a login or a queue position must stay on one exit. Change IP mid-flow and you look like a hijacked session, which is the fastest way to lose the position you waited for.
# one exit for 30 minutes
curl -x isp.quanticdata.io:8000 \
-U "USER-country-us-session-drop01-sessTime-30:PASS" https://ipinfo.io/jsonPick the session token per task, not per request: one token per checkout attempt, held for the
whole attempt. stock_monitor.py shows the opposite pattern — no session at all, because
monitoring wants a fresh IP every poll.
stock_monitor.py jitters its interval and backs off on 429 and 403. That is not decoration:
- A fixed interval is a signature. Twelve requests exactly 30 seconds apart is not a shopper.
- Hammering a product page gets the IP range flagged, which costs you the drop you were waiting for.
- Backing off on a 429 preserves the exit; ignoring it burns it.
There is no queue-jumping, no CAPTCHA solving, no automated purchasing, and no advice on evading a retailer's per-customer limits here. This is proxy configuration and availability monitoring. Read the terms of the site you are targeting, and check robots.txt before you point anything at it.
- Sneaker proxies · ISP proxies · Cheap residential proxies
- Proxy quickstart · How to use rotating proxies
- How to detect residential proxies
MIT licensed.