Website rtkmail.ru

DoubleClick is a provider of digital marketing technology and services. Companies come to DoubleClick for expertise in ad serving, media, video, search and affiliate marketing to help them make the most of the digital medium.

Anti-bot CAPTCHA widget that helps digitize books by providing snippets of books for people to enter the text for. Owned by Google.

FancyBox is a tool for displaying images, html content and multi-media in a Mac-style "lightbox" that floats overtop of web page.

Google Tag Manager makes it easy for marketers to add and update website tags including analytics, remarketing, and more.

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

Ruby on Rails is an open-source web framework that is optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.

Ubuntu Linux operating system

Previously Google Apps for Business. G Suite is a cloud-based productivity suite that helps you and your team connect and get work done from anywhere on any device. It's simple to setup, use and manage, allowing you to work smarter and focus on what really matters.

websites using the $ symbol on their website - meaning it may accept payment in this currency used in Israel.

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.

A scheme.org entity that represents an organization such as a school, NGO, corporation, club, etc.