The "DC" tag indicates these servers are physically located in or routed through Washington, D.C. For many users, geographic location is critical for:

A "Non-auth" (non-authenticated) HTTP setup refers to a server or proxy that allows traffic to pass through it without requiring a username or password. When these are bundled into a "100x" list, it typically signifies a collection of open gateways designed for high-volume automated tasks. Why Location Matters: The "DC" Factor

: Because there is no authentication or encryption layer managed by the user, the operator of the "non-auth" server can theoretically "sniff" or capture all unencrypted data passing through it.

: Reaching data that is only visible to IP addresses within the U.S. capital region.

: Introducing unknown IP addresses into your workflow can expose your local network to scanning or exploitation.

While "non-auth" sounds convenient, it carries significant security implications: