Change the PHP version on a Plesk server
  • Web development

Learn how to change the PHP version for a server with Plesk. This tutorial includes instructions on how to find the PHP version your Plesk server is using, change to a different PHP version, and install a different PHP version if necessary.

CMYK colours
  • Web design

What is special about CMYK colours and what distinguishes them from RGB colours? CMYK uses four colours: C for cyan, M for magenta, Y for yellow and K for black, the first letters of which make up the abbreviation. The physical principle of subtractive colour mixing in CMYK is fundamentally different from RGB and enables high colour fidelity on printed media. Read on to find out more.

Trello alternatives
  • Web development

Trello is one of the most popular project management tools and offers a clear overview of projects and tasks in a Kanban board. But the software’s simple design and features easily reach their limits when it comes to more complex projects. That’s why it’s well worth looking into the Trello alternatives out there and how they differentiate from the original. Here, we’ll introduce you to six...

Create a coaching website
  • Website creation

In the digital age, lifelong learning is one of the most important skills. Employees and the self-employed enlist the services of coaches to further their education and develop new skills. If you are a coach, you should create your own coaching website. Our article explains how to build a coaching website and what best practices you should consider.

RGB colour
  • Web design

RGB, which stands for red, green, and blue, is a system used to create all the possible colours that can be displayed on a screen. The physical principle at work here is called additive colour mixing and involves mixing the different components of the visible light spectrum. Different colour spaces reflect human perception of colour to varying degrees.

Use PHP to insert information into a MySQL/MariaDB database from a HTML form
  • Web development

A PHP script is a convenient way to accept information submitted from a website's HTML form and insert it into a MySQL/MariaDB database. This tutorial will cover how to create a basic PHP script for inserting data, and an HTML form to take user input from a webpage and pass it to the PHP script.

Use mod_wsgi to Run Python as a Web Application on CentOS 7
  • Web development

Learn how to install and use Apache's `mod_wsgi` module to run Python scripts in a web page. This Apache module can be used to serve web pages written in Python, or to render web pages with embedded Python scripts.

What is a TIFF file?
  • Web design

There are several image formats to choose from when saving images. Which format is best depends on the intended use. While JPG files require little storage space and are therefore ideal for the web, a TIFF file is best suited for printing high-resolution images thanks to lossless compression. What other features characterise the TIFF format?

What is a pixel?
  • Web design

What are pixels? With the widespread use of high-resolution screens and digital cameras, the pixel became the buzzword on everyone’s lips. Behind this tiny, physical point in a raster image you’ll find a sophisticated technology that allows images to be reproduced on displays and printers in detail, in the correct colour, and without so-called artefacts.

Upgrade PHP on a CentOS 7 Cloud Server
  • Web development

The default version of PHP available on a new Cloud Server running CentOS 7 is version 5.4. Learn how to upgrade this to PHP 7.0. You will need to perform the upgrade by hand, since PHP 7 is not available in the standard CentOS 7 `yum` repository, because it is not considered stable.

Websites

IONOS Website Guide: website advice for all

A website isn’t just a website – these days, there are countless ways to create an online presence in a way that matches your expectations. The ‘Websites’ section of the IONOS Digital Guide offers detailed information about creating, managing, and optimising websites as well as facts and general background information on the World Wide Web. For a closer look, you can also explore one of several subcategories about different topics. Here, we present website advice for everyone, from mere enthusiasts to qualified professionals.

What’s in the IONOS Website Guide?

The ‘Websites’ section is one of six main categories in the IONOS Digital Guide. ‘Websites’ is then broken down into four further subcategories: ‘Website creation, ‘Web design’, ‘Web development’, and ‘Digital law’. While ‘Website creation’ focuses primarily on the technical aspects of internet sites, ‘Web design’ articles look at the optical makeup of content, in particular the use of text, images, and responsive displays through HTML or CSS. ‘Web development’ covers the use of scripting languages, like PHP or JavaScript, as well as specific tools for the development of internet services. But basic information about the standards and trends of website development can also be found here. The subcategory ‘Digital law’ presents online laws and practices, like image usage rights and privacy policies.

Website advice for beginners, advanced users, and professionals

The Website Guide serves as an information portal for small and medium-sized companies, along with developers, web designers, technology lovers, and general internet enthusiasts. Many articles on the IONOS Digital Guide require little background knowledge, though some are also aimed at more experienced users. Beginners can enjoy posts on topics like ‘What exactly is a website?’, ‘The basics for modern web development’, or ‘How are websites accessed?’, while more advanced readers can broaden their knowledge of specific topics with comprehensive articles and tutorials. So whether you are a novice, an advanced user, or a professional: our handy Website Guide has plenty of useful tips and tricks to help you become an expert on the World Wide Web.