Datacenter IPv6

This guide walks through datacenter IPv6 proxy setup on ColdProxy's speed-tiered datacenter network. You buy a Mbps speed tier, and one order includes all 47 supported locations across 25 countries, each with its own private /48 block; you pick the exit location (a country, or a city within it) per request, or use the All Country random option. Like Residential IPv6, it includes CDN-aware IPv6 reachability for supported CDN-fronted domains. The steps below cover authentication, the gateway endpoint and ports, and a working request example so you can connect over the same per-service gateway as every ColdProxy plan. The full product overview lives at /proxy/datacenter-ipv6/, and current pricing is on the pricing page.

#What you are buying

Datacenter IPv6 is a speed-tiered datacenter proxy product. You choose a throughput tier in Mbps, and a single order includes all supported locations, each with its own private /48 IPv6 block; you select the exit location per request with username tags or SuperPorts, not at purchase time. Sticky sessions can be held from 5 seconds up to FOREVER, and billing starts at the daily level. The full location list is in Choosing a product.

#Check IPv6 reachability first

#CDN-compatible routing

Datacenter IPv6 suits CDN edge testing and dual-stack QA: validating how a site behaves when served to IPv6 clients from a CDN such as Cloudflare, Akamai, Fastly, or CloudFront. For supported CDN targets without a published AAAA record, ColdProxy's included CDN-aware reachability keeps supported requests on IPv6, with no IPv4 fallback. Use the IPv6 Checker to check published IPv6 addresses and CDN signals; a detected CDN alone does not confirm ColdProxy support. Validate your exact target on a daily plan, and see IPv6 Proxies for CDN Testing for the full workflow.

#Connection details: how to configure the datacenter IPv6 proxy

Datacenter IPv6 connects through its own per-service gateway:

gw-2312.coldproxy.com

2312 is the service/package ID of the plan you purchased. Use any port in the 30000–34999 range (30000 in the examples). HTTP, HTTPS, and SOCKS5 run on the same gateway and are auto-detected. The canonical proxy string is:

gw-2312.coldproxy.com:30000:USERNAME:PASSWORD

Most clients also accept USERNAME:PASSWORD@gw-2312.coldproxy.com:30000. See How to Connect and Authentication for the full reference.

#Connect example

Use an IPv6-capable echo endpoint to confirm an IPv6 exit:

curl -x "http://USERNAME:PASSWORD@gw-2312.coldproxy.com:30000" \
  "https://api6.vipv6proxy.com/api/checker/my-ip"

import requests

proxy = "http://USERNAME:PASSWORD@gw-2312.coldproxy.com:30000"
proxies = {"http": proxy, "https": proxy}

resp = requests.get("https://api6.vipv6proxy.com/api/checker/my-ip", proxies=proxies, timeout=30)
print(resp.json())

Verify IPv6 reachability, the exit IP, and location with Proxy Checker and My IP.

#Geo-targeting and sessions

Under User:Pass auth, the username tag scheme controls the exit location (a country, or a city within it, from the 47 supported locations) and the session. Sticky sessions can be held from 5 seconds to FOREVER. A timed sticky session turns on only when both -session- and -time- are present; the FOREVER hold is the -identifier- pin shown below, not a -time- value:

curl -x "http://user-country-de-session-481516-time-4h:PASSWORD@gw-2312.coldproxy.com:30000" \
  "https://api6.vipv6proxy.com/api/checker/my-ip"

To pick a listed city, add a -city- tag inside its country. This request exits from Berlin, one of the listed Datacenter IPv6 locations in Germany:

curl -x "http://user-country-de-city-berlin:PASSWORD@gw-2312.coldproxy.com:30000" \
  "https://api6.vipv6proxy.com/api/checker/my-ip"

For a deterministic, stateless IP pin that needs no session lifetime, use -identifier-. This is the username format the client area generates, where USERNAME is your service username and the identifier value stays as issued; see IP pinning on IPv6 plans:

curl -x "http://USERNAME-identifier-mumcgy8tafa7dj0:PASSWORD@gw-2312.coldproxy.com:30000" \
  "https://api6.vipv6proxy.com/api/checker/my-ip"

#Next steps

• Product overview and pricing for Datacenter IPv6.
• Manage the plan in code (speed upgrades, renewals, proxy lists) with the Customer Plan API.
• IPv6 Proxies for CDN Testing and Residential IPv6 vs Datacenter IPv6.
• Check target reachability with IPv6 Checker before buying.
• Verify any connection with Proxy Checker and My IP.