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IP查询的接口收集
https://www.cloudflare.com/cdn-cgi/trace
https://fbi.gov/cdn-cgi/trace
https://ipinfo.io/json
其实没那么麻烦，谷歌语法搜索inurl:"/cdn-cgi/trace"就可以找到一堆这样类似的接口
@袁了凡 666
@袁了凡 牛逼啊
@malaohu 忘记补充原理了，能够访问到这个目录的前提是网站使用了cloudflare的cdn。倒着推，只要能确定网站用了cloudflare的cdn，就能够通过这个目录获取到ip
