Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Eggplant is a software testing and monitoring company.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
ipify is a service which provide public IP address API, IP geolocation API, VPN and Proxy detection API products.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Salesforce Desk(Desk.com) is software as a service (SaaS) tool on the help desk.