> ## Documentation Index
> Fetch the complete documentation index at: https://docs.joinmassive.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Usage restrictions

> Some restrictions apply to the use of both the HTTP(S) and SOCKS5 endpoints.

# General Restrictions

* UDP communication isn’t allowed.
* Ports other than the standard `80` and `443` are blocked; `http://example.com/` and `https://example.com/` are acceptable targets, for example, but `http://example.com:8080` would be rejected.
* The Massive Network is intended to optimize delivery of content that could be reasonably considered “family friendly” to a (currently) worldwide userbase (in the future, regional distinctions are planned), so potentially dangerous or offensive content isn’t allowed.

A request that’s blocked due to any of these protocol, port, or content restrictions will fail with a `452` Disallowed Content error message.

# Restricted Domains

* We restrict access to content that is generally used to evade the law or site TOS policies. If you are getting blocked from accessing certain content that you have a legitimate reason to access, then contact support to complete our KYC process to gain access.

# Port 25

* `Port 25` cannot be opened on our residential proxy network. If you want to use residential proxies to test email sending, you can request access for `Port 587` or `Port 465`.

# Request access

[Contact support](https://joinmassive.atlassian.net/servicedesk/customer/portal/2/group/2/create/13) if you have questions about our policies or want to complete KYC to gain access to content that is restricted by default.