Bootstrap

UI frameworks

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.

Elasticsearch

Search engines

Elasticsearch is a search engine based on the Lucene library. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents.

GitHub

The website mentions github.com in some form.

HSTS

Security

Forces browsers to only communicate with the site using HTTPS.

Kibana

Search enginesJavaScript graphics

Kibana is an open-source data visualisation dashboard for Elasticsearch. It provides visualisation capabilities on top of the content indexed on an Elasticsearch cluster. Users can create bar, line and scatter plots, or pie charts and maps on top of large volumes of data.

Lambda Theme

WordPress themes

Multi Purpose Responsive Bootstrap Theme.

Node.js

Programming languages

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.