优选IP 如何判断

本质上我的实现思路就是用前端网络访问 然后减去握手计算延迟顺便获取机场吗 IP/cdn-cgi/trace http://172.64.228.137/cdn-cgi/trace 返回 fl=410f408 h=172.64.228.137 ip=132.147.97.12 ts=1764917536.26 visit_scheme=http uag=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 colo=SIN sliver=none http=http/1.1 loc=SG tls=off sni=off warp=off gateway=off rbi=off kex=none http://172.67.220.133/cdn-cgi/trace 返回 fl=961f19 h=172.67.220.133 ip=132.147.97.12 ts=1764917569.947 visit_scheme=http uag=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 colo=SIN sliver=none http=http/1.1 loc=SG tls=off sni=off warp=off gateway=off rbi=off kex=none https://joeyblog.net/cdn-cgi/trace 返回 fl=412f679 h=joeyblog.net ip=132.147.97.12 ts=1764917612.000 visit_scheme=https uag=Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36 colo=SIN sliver=none http=http/2 loc=SG tls=TLSv1.3 sni=plaintext warp=off gateway=off rbi=off kex=X25519MLKEM768