Freqency-based anti-spider model

OpenResty

If pass Captcha = Delete #6

Filter

If hit _3 =302

_1. In white_list?_2. In black_list?_3. Exists #6?

Lua

If hit _2 = 403

IP

Nginx

Redis#1.white_list#2.black_list#3.ip_ban_time(convex_func)#4.time_127.0.0.1#5.count_127.0.0.1#6.ban_127.0.0.1#7.statistic_total_ip#8.statistic_ban_ip

WebApp

Designed by S.Mona

CaptchaWebApi

If hit _1 or no #6 = Pass