Site Info - Sp.nl

WordPress is an open source blog publishing and content management system, based on PHP and MySQL.

WooCommerce is an open source e-commerce platform based on WordPress.

Drupal is an open source content management system written in PHP, originally developed by Dries Buytaert.

Procurios is a hosted community management platform, including a content management system.

JavaScript is a lightweight, object-oriented, cross-platform scripting language.

PHP is a scripting language for creating websites.

JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages.

Next.js is an open source JavaScript framework based on React and Node.js.

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the visitors browser.

React is an open source JavaScript library for building user interfaces, developed by Facebook.

Moment.js is a library to manipulate dates in JavaScript.

Cloudflare Server is a web server developed by Cloudflare.

Node.js is a server-side JavaScript environment for writing network programs such as web servers, originally developed by Ryan Dahl.

Nginx (pronounced as "engine X") is a lightweight open source web server developed by Igor Sysoev.

The Apache HTTP Server is an open source web server by the Apache Software Foundation.

Unix is a range of operating systems originally developed at Bell Labs. This includes Unix and Unix-like systems, such as Linux.

Previder is a Dutch web hosting provider owned by Odin Group.

TransIP is a Dutch web hosting provider owned by team.blue.

TrueFullstaq is a Dutch web hosting provider, created by merging True and Fullstaq.

Vimexx is a Dutch web hosting provider owned by team.blue.

Previder is a Dutch web hosting provider owned by Odin Group.

Signet is a Dutch web hosting provider owned by team.blue.

TrueFullstaq is a Dutch web hosting provider, created by merging True and Fullstaq.

Vimexx is a Dutch web hosting provider owned by team.blue.

Cloudflare provides a content delivery network.

Cloudflare provides DNS servers and other web services.

GlobalSign is an IT security service provider, also operating as SSL certificate authority.

Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group.

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google. This includes the Ads conversion tracking and the Floodlight services.

The Google Advertising network consists of AdSense, DoubleClick and other services.

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

The WhatsApp share button allows users to share content with their WhatsApp contacts.

Facebook Social Plugins provide a way for Facebook users to share web pages with their friends.

A Twitter/X Button allows a Twitter user to post a tweet from the visited site.

External Cascading Style Sheets define style rules in a separate CSS file.

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Session cookies are temporary cookies, which are deleted when the user closes the browser.

Non-HttpOnly cookies are used in the HTTP protocol and also in client side scripts, which may be a security threat.

Secure cookies are used only via an encrypted connections, which may increase security.

Brotli is a lossless compression algorithm developed by Google.

Gzip (GNU zip) is a file compression algorithm.

A strong ETag is an HTTP header field for validation of cached web pages, that indicates a byte-for-byte identical page in the cache.

The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.

HTTP/2 is the second major version of the HTTP network protocol.

HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol.

HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Persistent cookies with an expiration time between 1 day and 1 month.

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

The Open Graph protocol, originally developed by Facebook, is an RDFa-based format that enables any web page to become a rich object in a social graph.

Twitter/X Cards enable automatic attachment of photos, videos and media elements to tweets.

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

HTML5 is the fifth revision of the HTML standard.

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

Scalable Vector Graphics (SVG) is an XML-based vector image format.

GIF (Graphics Interchange Format) is a lossless compression image format, originally introduced by CompuServe and suitable to store graphics, logos and simple animations.

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