Unlike SOCKS5, SOCKS4 only supports TCP traffic. It cannot handle UDP (used for many streaming and gaming applications) or IPv6. Expert Perspectives
“Learn how a Socks4 proxy list in TXT format can be a critical tool... granting you access to a wealth of IP addresses.” 911Proxy socks4 (13594).txt
“SOCKS4 has its limits... there's no login or user verification. That makes it less than ideal for situations where security matters.” Proxy-Cheap · 1 month ago Comparison Table SOCKS4 (Typical for this file) SOCKS5 (Recommended) None (Security risk) Supported (User/Pass) Traffic Support TCP, UDP, & IPv6 Speed Highly variable/Often slow Usually more stable Ideal For Basic web scraping Secure browsing & gaming Unlike SOCKS5, SOCKS4 only supports TCP traffic
Large lists of "free" SOCKS4 proxies are notorious for high failure rates. In a file of over 13,000 entries, you can expect a significant percentage (often 70% or more) to be offline, slow, or "dead" within hours of the list being scraped. granting you access to a wealth of IP addresses
SOCKS4 is an older protocol that does not support authentication . This means anyone with the IP and port can access the proxy. Because these proxies are often misconfigured servers or infected machines, using them can expose your traffic to logging or "man-in-the-middle" attacks by the proxy provider.
Community consensus generally advises against using large, unverified free proxy lists for sensitive tasks.
If you are using this for automation, it is highly recommended to use a to filter the active IPs from the 13,594 entries before deployment.