Apache is a free and open-source cross-platform web server software.
Drupal is a free and open-source web content management framework.
hCaptcha is an anti-bot solution that protects user privacy and rewards websites.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
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.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.