ERR_NAME_NOT_RESOLVED Error

“ERR_NAME_NOT_RESOLVED”: how to fix this DNS error in the Google Chrome browser

Chrome has recently become the most widely used browser in the world. However, this Google application is just as helpless as its competitors Firefox, Opera and Safari when it comes to technical problems on the server or client side. For example, if the domain name cannot be resolved by the DNS, Chrome will simply display the error message “ERR_NAME_NOT_RESOLVED”. In the following article, you...

PHP 5.6 Support

PHP 5.6: Support stops at the end of 2018

Security support for PHP 5.6 ceases at the end of the year. Although developers had already postponed the end date by a year, many website operators still seem to be unprepared. A large number of websites still run on PHP 5.6. From January onwards, these websites will be at risk. However, many are dreading the update. How can you protect your website?

Graph database

Graph databases explained

There are plenty of models for processing and storing large quantities of data. However, conventional databases with their rigid tabular structures quickly reach their limits when modeling complex relationships. So-called ‘graph databases’ have proven themselves to be particularly efficient for dealing with intensely interconnected data. But what exactly can they do?

Error 405 Method Not Allowed: Explanation and solutions

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...

HTTP 408: How to fix the “Request Timeout” error

HTTP 408: how to fix the timeout error

Permanent availability is one of the most important things when it comes to a website. However, even the best technical conditions do not offer a 100% guarantee that a website will constantly run smoothly. Connection errors like HTTP error 408 regularly present websites with minor and major difficulties, especially since the causes are often found on the client side. Our guide looks at the causes...

Databases

Databases – why do you need them and what kinds are there?

Databases are a fundamental part of our information society today. They organize electronic data and regulate access to it. Databases have a wide range of applications, both commercial and private. Each database system has a database management system based on a specific database model. While the history of the database began with the hierarchical model, today the relational database model is the...

Cross Browser Testing

Cross browser testing

Optimizing your website on all devices and browsers serves is an important badge of quality for both users as well as search engines. Due to the sheer amount of different web browsers, this aspect of optimization is often overlooked. Cross browser testing tools analyze how your website is displayed in different browsers, identify problematic codes, and support you with optimization.

HTTP 400 Bad Request | finding the causes

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.

504 Gateway Timeout: How to fix it

HTTP 504 (Gateway Timeout): How to fix an error 504

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...

Hostname

All you need to know: what is a hostname?

A computer’s unique name on a network is the hostname, site name or computer name. The hostname is part of the fully qualified domain name, which can be used (for example) to find and access websites on the internet. Here you’ll learn what a hostname looks like, and we’ll show you various ways to determine the hostname using an IP address or how to change it.


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