Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Forms is a free online form builder that allows you to create and publish online forms, surveys, quizzes, order forms, and more.
Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.