Limits and policies
Restrictions
Some sites and ports are closed on purpose. Knowing them before you buy saves a refund request, and knowing how a closed port behaves saves an hour of debugging.
Updated 16 October 2026
Blocked categories of sites#
These are blocked on residential, ISP and datacenter proxies alike, and should not be expected to work on mobile either:
- Banks.
- Payment systems and money services, such as PayPal and Stripe.
- Cryptocurrency exchanges.
- Government websites.
This is a deliberate anti-fraud rule, not an outage. It cannot be lifted for one account, and no other proxy type gets around it. The proxy usually refuses such a request with 403.
Closed outgoing ports#
Port 25 (SMTP) is closed on every product: the proxies are not sold for sending mail. On ISP and datacenter these outgoing ports are closed as well:
| Port | Used by |
|---|---|
| 21 | FTP |
| 22, 2222 | SSH |
| 23 | Telnet |
| 25, 465, 587 | Sending mail (SMTP) |
| 110, 995 | Receiving mail (POP3) |
| 143, 993 | Receiving mail (IMAP) |
| 3306 | MySQL |
| 3389 | Remote desktop (RDP) |
| 6667 | IRC |
Every other port is open, 80 and 443 included.
What we do not provide#
- Subnet lists and the IP ranges a product sits on.
- Targeting by internet provider (ASN) on residential.
- Sample IPs before a purchase. The cheap way to check is a small order.
- A promise that an IP will pass a particular reputation database or fraud score.
Acceptable use#
What the proxies may and may not be used for is set out in the Acceptable Use Policy.
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