Error 522 – 'Connection timed out': How to fix the error

52- HTTP error messages indicate a problem between the web server that is running a website and the Cloudflare CDN service. The 522 error is very common and is also known as the 'Cloudflare error'. It is displayed in the visitor’s browser whenever the mandatory TCP handshake fails. This guide explains the reason for this error message and what solutions there are for site operators and visitors.

ERR_SSL_PROTOCOL_ERROR: how to fix the Chrome bug

Chrome is the world’s most widely-used internet browser. The application scores points not only when it comes to security and speed, but also with its features such as cross-device synchronisation of user data. But errors can occur even when surfing with Google’s wonder weapon. These can lead to the browser crashing or prevent certain pages from being accessed. The error message...

Hyper-converged systems: The compact data center

The traditional data center could be significantly streamlined by migrating to a hyper-converged system. By eliminating the need for highly complex infrastructures and multiple work areas, the company’s IT department could function more efficiently, dynamically, and cost-effectively. This is made possible using preconfigured standard hardware and a complete virtualisation of the IT infrastructure....

QUIC: What is behind the experimental Google Protocol?

Quick UDP Internet Connections (QUIC for short), is an experimental network protocol from Google. Further development of the protocol is being driven by IETF, which has set up a dedicated group working towards it. The QUIC protocol is intended to offer a speed-optimized alternative to the current transport standard TCP and builds on the connectionless protocol UDP to achieve this.

HTTP Error “405 Method Not Allowed”: How to solve the problem

HTTP is indispensable as a mediator between the browser and web server: Both communicate with each other using the transmission protocol on the application layer by sending various types of messages. With an HTTP request, for example, the browser can request a resource or return its own data to the server. If one of these HTTP methods doesn’t work, error 405 (Method Not Allowed) occurs. But what...

Error 401: Unauthorised – No access to the website

You’re surfing around on the internet, but instead of getting the desired content you only receive an error message: annoying or even downright frustrating. Especially if you don’t exactly know what the status is supposed to mean. How are you expected to solve the problem, if you don’t know what’s causing it? This also goes for the error 401. Here we explain what the error means and what you can...

Anonymising links – advantages and disadvantages of dereferrer

Privacy is one of the most important aspects of the Internet. Whoever wants to protect themselves will hopefully begin with one of the most basic elements of the World Wide Web: the hyperlink. References from one webpage to the other usually lead in one direction only – information exchange via HTTP, however, takes place in both directions. To prevent this from occurring, Internet users used to...

The ‘noisy neighbour’ effect: disruptions in shared and cloud hosting

Shared hosting offers are very popular with many users because of their affordability. But the benefit of loaning resources and sharing hardware with other users can also cause problems, particularly if one of more of the hosted applications puts too much of a strain on performance. What exactly is the ‘noisy neighbour’ effect and how can providers and private hosts avoid this issue in cloud...

HTTP 400: Bad Request explained

Internet users are often confronted with error messages. HTTP status codes can be especially annoying, and even more so if you don’t understand what they mean. The message 'HTTP 400 – Bad Request' is a mystery for many internet users, but luckily it can be solved in most cases. We explain what the error message means and how to fix the error.

Error 502 Bad Gateway: Where’s the problem?

HTTP status codes emerge when something isn’t running properly on the internet. In this respect, the 502 Bad Gateway error is no exception. But this familiar error message can be particularly tricky: It’s not actually clear where the source of the problem lies. In the chain of gateways along which internet requests run, the error could occur at a number of different points. This article explains...