Introduction to ColdProxy

ColdProxy offers four types of proxies: residential IPv4 (unmetered and GB-based), residential IPv6, and datacenter IPv6. This introduction explains what each product is, where its IPs come from, and how you connect to it, so you can pick the right one before you start integrating. It covers the shared gateway and port range, supported protocols, and authentication options common to all four products. For pricing and plan selection, see /pricing/ and Choosing a product.

#What ColdProxy provides

ColdProxy is a commercial proxy platform for public-data collection, SEO monitoring, ad verification, price and market research, brand protection, localization testing, and analytics QA. You buy proxy capacity (in speed tiers or traffic packs depending on the product) and ColdProxy provisions a gateway, a port range, credentials, and a self-service API so you can connect, rotate IPs, geo-target, and manage your service without contacting support for routine changes.

All four products share the same gateway hostname template and port range:

#The four products at a glance

#Premium Residential Geo Target IPv4 (Unmetered)

Speed-tier (Mbps) residential IPv4 across 195+ countries. Your chosen Mbps tier sets throughput, and traffic is unmetered. Sticky sessions from 5 seconds to 24 hours; rotating per request. Billing: hourly, daily, weekly, monthly.

Choose this when residential IP reputation matters and you prefer throughput-based spending over tracking GB usage: for example, large-scale public web data collection, SERP monitoring, and multi-session residential workflows.

Product page: /proxy/residential-ipv4-unlimited/ · Pricing: /pricing/residential-ipv4-unlimited/

#Premium Residential Geo Target IPv4 (GB Based)

The same 195+ country residential IPv4 coverage with country, state, and city targeting, but billed as monthly traffic packs. Sticky sessions from 5 seconds to 24 hours. Billing: monthly only.

Choose this when you want predictable residential spend on well-scoped workloads: for example, ad verification runs, competitor price checks, and SERP tracking where traffic volume is easy to forecast.

Product page: /proxy/residential-ipv4-gb/ · Pricing: /pricing/residential-ipv4-gb/

#Residential IPv6

Speed-tier (Mbps) residential IPv6, USA only, with an included /32 IPv6 subnet. Sticky sessions from 5 seconds to FOREVER; rotating per request. CDN-aware IPv6 reachability for supported CDN-fronted sites (for example Cloudflare, Akamai, Fastly, and Amazon CloudFront). Billing: hourly, daily, weekly, monthly.

Choose this when your target publishes IPv6 addresses or is served by a supported CDN, you need USA residential IPv6 addresses, and you want long-lived sticky sessions or an included /32 subnet.

Product page: /proxy/residential-ipv6/ · Pricing: /pricing/residential-ipv6/

#Datacenter IPv6

Speed-tier (Mbps) datacenter IPv6 across 47 supported locations in 25 countries, with one private /48 subnet per supported location included in a single order. Sticky sessions from 5 seconds to FOREVER; rotating per request. CDN-aware IPv6 reachability for the same supported CDN-fronted domains. Billing: daily, weekly, monthly.

Choose this when your target publishes IPv6 addresses or is served by a supported CDN and you need multi-region datacenter IPv6 coverage, dedicated /48 subnets per location, or datacenter throughput.

Product page: /proxy/datacenter-ipv6/ · Pricing: /pricing/datacenter-ipv6/

#What you are buying

When you place an order, ColdProxy provisions:

• A dedicated gateway endpoint: gw-{service-id}.coldproxy.com
• A port range within 30000–34999 (the number of ports depends on your plan)
• Credentials: a username and password for user/password auth, or an IP allowlist slot for IP authentication
• Access to the self-service Customer Plan API for credential management, geo lists, usage stats, upgrades, and more

You connect using the standard proxy string format:

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

or in URL form:

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

Replace 2312 with your numeric service ID from the client area, and USERNAME / PASSWORD with your plan credentials.

#Protocols and transport

All four products support HTTP, HTTPS, and SOCKS5. Protocol is auto-detected by the gateway based on the connecting request; you do not set a protocol flag on the server side. Use port 30000 unless you have configured SuperPorts (port-bound geo and session rules) for a different range.

See SOCKS5 vs HTTPS proxies and TCP vs UDP proxies for a deeper comparison.

#Authentication options

ColdProxy supports two authentication methods. Both can be active on the same plan simultaneously.

Username/password authentication: credentials are sent inline with every request using HTTP Basic auth (for HTTP/HTTPS) or SOCKS5 user/pass auth. This is the standard path for most integrations and supports per-request username tags for geo-targeting and session control.

IP authentication: you whitelist up to 50 source IPs in the client area. Requests from those IPs authenticate automatically; proxies are issued in IP:PORT form with no credentials in the request. Geo defaults to Worldwide unless you configure SuperPorts for port-level geo binding.

See IP whitelisting vs username/password authentication for a full comparison.

#Verifying your connection

After connecting, use the free tools to confirm your proxy is working:

• Proxy Checker — verifies IPv4/IPv6 reachability, exit IP, and location
• My IP — shows the IP address your requests appear to come from
• IPv6 Checker — shows whether a target domain publishes IPv6 addresses and whether its DNS points to a recognised CDN

#Next steps