GeeTest is a CAPTCHA and bot management provider, protects websites, mobile apps, and APIs from automated bot-driven attacks, like ATO, credential stuffing, web scalping, etc.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.