The quality of proxies can be assessed based on their performance, anonymity level, and longevity (how long they remain functional). While Reflect4 claims to offer extra quality proxies, real-world performance can vary:
| Feature | Standard Free Proxy | Extra Quality Proxy | |---------|---------------------|---------------------| | Uptime | 40-60% | 85-99% | | Speed | >5 seconds response | <1 second | | Anonymity | Transparent or anonymous | Elite (no X-Forwarded-For ) | | Protocol Support | HTTP only | HTTPS/SOCKS5/Reflect4 | | Source Reputation | Public scrapers | Private forums, validated lists | reflect4 proxy list free extra quality