Website astronomy.net.ua

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

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

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.

Simple Machines Forum is a free, professional grade software package that allows you to set up your own online community within minutes.

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

This page contains a meta robots tag which tells search engines and robots to index or not index the page.

Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.

Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is.

The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.

Indicates that the site provides an interface specifically for searching the document and its related resources.

Windows-1251 (a.k.a. code page CP1251) is a popular 8-bit character encoding, designed to cover languages that use the Cyrillic script such as Russian, Bulgarian, Serbian Cyrillic and other languages.