Because this file dates back to July 2023 , most (if not all) of the proxies listed are likely "dead" or inactive. Public proxy IPs rarely last more than a few days.
If you are looking for functional proxies, a file from mid-2023 will not be useful today. You would be better off searching for a proxy list or using a reputable paid service if you require stability and security. -SOCKS4-07-01-23-.txt
SOCKS4 is an older routing protocol. It is less secure than SOCKS5 because it does not support authentication or UDP traffic. Because this file dates back to July 2023
These files are generally found on repository sites (like GitHub), forum threads (such as Bitcointalk or BlackHatWorld), or automated proxy scraping services. What is in this file? -SOCKS4-07-01-23-.txt