Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
ECharts is an open-source JavaScript visualisation library.
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.
TYPO3 is a free and open-source Web content management system written in PHP.