Limitations
This page lists all current restrictions on our products.
Blocking individual sites
Applies to all products, except Mobile proxy.
The following are unavailable through the proxy:
Banking sites (online banking, banks' personal accounts)
Government portals (public services, tax services, etc.)
Payment processors: Stripe, PayPal
This is a regulatory requirement aimed at limiting fraudulent activity. The block does not apply to crypto services and payment systems such as exchanges.
UDP on residential proxies (US)
UDP does not work on Residential proxies in the US 🇺🇸
This is not our restriction. At the beginning of 2026, providers in the US banned incoming UDP connections without prior initiation from inside the network. Because of this, UDP Associate on proxies stopped working in this region.
In all other locations, UDP works without issues.
Changing p0f on mobile proxies
Device fingerprint spoofing (p0f) is unavailable in some countries and with some operators:
Germany 🇩🇪
All operators
France 🇫🇷
All operators
Indonesia 🇮🇩
All operators
Poland 🇵🇱
Orange
Ukraine 🇺🇦
Lifecell
United Kingdom 🇬🇧
All operators
In all other locations and with all other operators, p0f spoofing works as usual.
Closed ports
Applies to all products.
Through the proxy, connections to service ports that are often used for attacks on third-party services are blocked:
21
FTP
22
SSH
23
Telnet
25
SMTP
The list may be expanded. If you need access to a specific port for legitimate tasks, contact support.
Last updated
Was this helpful?