HTTP

Flush DNS
Flush DNS | How to clear the DNS Cache
  • Configuration

Operating systems, such as Windows or macOS, automatically save information about address resolution from systems and applications in the network in a DNS cache. The purpose of this practical cache is to speed up network traffic. Read on to find out why it’s useful to regularly clear the DNS cache and how exactly such a DNS flush works.

Flush DNS | How to clear the DNS Cache
What is a server? One term, two definitions
What is a server?
  • Know-how

When talking about web hosting, it is impossible to avoid the term ‘server’. So what is a server? And how does it work? In IT, there are actually two definitions of the term. The traditional server is the software for network services, but more recently the word has also been used to describe the corresponding hardware used to carry out server programs. Here is our overview of the most common...

What is a server?
504 Gateway Timeout: How to fix it
HTTP 504 (Gateway Timeout): How to fix an error 504
  • Technical matters

If the error message ‘HTTP 504 Gateway Timeout’ appears when you attempt to open a website, it means that the allowed time for responding to browser queries has been exceeded. A lot of the time the culprit is not the web server itself, but instead some other component of the server, i.e. a gateway, which is integral to the path of communication. What does 504 gateway timeout mean? How can you fix...

HTTP 504 (Gateway Timeout): How to fix an error 504
What does the '404 Not Found' error mean?
What 'Error 404' means and how to fix it
  • Website creation

How often have you stumbled upon a dead end while surfing the net? HTTP 404 error pages are commonplace online to inform users that the requested page isn’t available. As well as being annoying for visitors, they spell bad news for website owners since a dead link may have a bad influence on a website’s search engine ranking. In this article, we’ll demonstrate the importance of 404 pages and...

What 'Error 404' means and how to fix it
FQDN | Fully Qualified Domain Name
Fully Qualified Domain Name (FQDN) explained
  • Domain administration

A fully qualified domain name (FQDN) is a domain name that specifies the unique and complete address of a website. It consists of several name parts called labels, each separated by a dot. The FQDN has a hierarchical structure set by the domain name system (DNS). The mandatory parts of an FQDN are the host name, domain name, and top level domain of the internet presence.

Fully Qualified Domain Name (FQDN) explained
Server Name Indication
Server Name Indication (SNI): What’s behind the standard?
  • Know-how

What is server name identification, really? Encryption technologies play a big role when it comes to surfing on the net. Credit card data and other personal information must not fall into the hands of criminals. For now, TLS is one of the protocols used for this purpose. But it has a disadvantage: it only functions when each IP address only hosts one domain. If multiple virtual services are...

Server Name Indication (SNI): What’s behind the standard?
HTTP error 500: Internal Server Error
How to fix HTTP 500 internal server error?
  • Technical matters

Error messages when surfing the net are a nuisance for everyone involved, but especially for those who have to find out what the problem is. The search for a solution can be particularly tedious if the status code message barely provides any information on the source of the error. The HTTP error 500 (“Internal Server Error”) is a collective status code. We give you tips on where errors could have...

How to fix HTTP 500 internal server error?
Server-side and client-side scripting: the differences
Server side rendering, client side rendering, and static site generation at a glance
  • Web development

Should a website be rendered by the server or only in the browser? This fundamental question about integrating scripts on the web depends on the project. Static site generation even offers a third approach to rendering. We have summarized the features, advantages, and disadvantages of server side rendering, client side rendering, and static site projects.

Server side rendering, client side rendering, and static site generation at a glance
What are first-party cookies?
What are first-party cookies?
  • Technical matters

When it comes to cookies, the small text files for internet browsers, a distinction must be made between first-party cookies and third-party cookies. First-party cookies improve a website’s user-friendliness by storing user preferences as well as information that has already been entered so that it can be used later on. These cookies can only be analyzed by the respective website operator, meaning...

What are first-party cookies?
What does ‘502 bad gateway’ mean?: Explanation and solution
Error 502 Bad Gateway: Where’s the problem?
  • Technical matters

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...

Error 502 Bad Gateway: Where’s the problem?