Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
GetResponse is an email marketing app that allows you to create a mailing list and capture data onto it.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
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.
ProcessWire is an open source content management system (CMS) and framework (CMF).
UIKit is the framework used for developing iOS applications.