Website sterrenkunde.nl

bol.com is a ecommerce website based in Utrecht and active on the Dutch and Belgian markets.

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

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

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

Website using the € symbol on their website - meaning it may accept payment in Euros.

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.

Wesites using favicon rel tag

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.

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.

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.

A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".

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