You can manually check individual proxies using curl with the --socks5 flag to verify connectivity. Protocol Summary: SOCKS5 curl man page
Categorizes proxies as transparent, anonymous, or elite (high anonymity). SOCKS 5 1K.txt
Tools like ProxyScrape allow you to upload .txt files to receive a live status report. You can manually check individual proxies using curl
To generate a real-time report from your SOCKS 5 1K.txt file, you can use these resources: SOCKS 5 1K.txt
For large lists (1k+), multi-threaded scripts are preferred. Proxyrack provides Python-based solutions for this purpose.