Squid—the cross-platform open source proxy

If you’re optimizing your website, then you shouldn’t just turn to content and design; it’s important to also make sure that you invest ample time into the functionality of your website. Usability and loading time are just as important for a website’s success as high-quality and regularly offered content. A long loading time is one of the main causes of high bounce rates. The simple solution: a cache proxy like Squid that is able to cache static content as well as content that only rarely changes. [...]  

Creating an online shop with WordPress: how to do it

In order to successfully sell products in the age of mobile internet and digital offers, having a well-functioning online shop is a necessity. But how can you create your own online shop without resorting to expensive help? With WordPress, you can quickly and easily set up your own web shop. We will show you how to do it – step by step. [...]  

What is a floating IP?

IP addresses are essential for modern digital communication. They are the 'connection numbers' of all devices in the network and this is why they are one of key foundation elements of the internet as well as other networks. Communication is based on a common 'language': the internet protocol. But what exactly is a floating IP and what is it used for? What is the difference between a floating IP of static and dynamic IPs? [...]  

Linux editor with a vast range of functions – Vim

In order to edit text files or receive source codes from software or websites, you require a text editor. Whether you’re using Linux, Windows, or Mac: the majority of operating systems these days already have them installed by default. There are also editors like Vim, which have a wider range of functions and simplify working with the confusing lines of code. [...]  

What is a VPS (virtual private server)?

A virtual private server (VPS) is a compromise between shared hosting and a dedicated server. The VPS product allows web hosts to combine the strengths of both hosting models in one, cost-efficient IaaS solution. We’ll take a closer look at this hosting solution, demonstrating how a virtual private server works, exploring the advantages and disadvantages of it, and deciding who the model is best suited for. [...]  

Deduplication vs. compression: two concepts in data reduction

With the mass of data constantly increasing, ever more efficient storage techniques are required to reduce storage requirements with as few losses as possible. For this purpose, there are two compression techniques that are currently in use. While data compression identifies and eliminates redundant information within a file, deduplication is a cross-file method that is particularly suited to backup processes where files are only partially replaced. [...]  

Has my e-mail been hacked? How to find out!

Large-scale hacker attacks constantly make their way into the news, which then causes panic among users. Hackers exploit e-mail addresses and passwords by using them for criminal purposes. Victims often don’t even realise that their data has been stolen. We introduce three tools to help you check whether your e-mail has been hacked. [...]  

Microblogging: a new way to blog

Microblogging is a form of blogging that involves publishing short, quick-to-the-point messages. A variety of apps and websites use microblogging and thereby attract millions of users. But what is behind the immense success of microblogging platforms? An introduction to the most popular and widely-used microblogging services and how to use them. [...]  

What is the Alexa ranking and how can I improve it?

The Amazon daughter company Alexa Inc. collects lots of data relating to how often and from where a website is visited, and then builds a ranking list from this data. But for many website operators, the Alexa rank is a bit of a mystery. How does the internet giant actually calculate the ranking, and what exactly does it signify? This digital guide offers the best tips and measures which can all help to improve your Alexa ranking. [...]  

Outlook: free alternatives at a glance

Traditional e-mail is still a big part of online communication for private and for business use, with many users typically opting for Outlook as their e-mail client. For PC users, Microsoft is practically an essential, but many private users and small businesses often look for alternatives. Luckily, there is a great number of free e-mail programs available for anyone put off by Outlook’s licensing costs. [...]