HTTP

NGINX vs. Apache: A web server comparison

Apache vs. NGINX – while one is said to be bulky and unwieldy, the other is considered slim and high-performance. But can we be this general? In fact, both web servers are based on fundamentally different concepts when it comes to connection management, interpretation of client requests, or configuration options. The range of functions also display clear differences in software alignment. While...

Error 405 Method Not Allowed: Explanation and solutions

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...

What does ‘502 bad gateway’ mean?: Explanation and solution

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...

HTTP 503: how to fix website errors

It’s very likely that you’ve stumbled on the 'HTTP Error 503 The service is unavailable' notification or something similar during your daily browsing. The error message appears whenever a web server can’t display the website that the user is trying to access. There are many reasons for these notifications, just as there are many solutions. It’s your responsibility as the website operator to...

504 Gateway Timeout: How to fix it

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...

The ten best .htaccess tricks

Are you the webmaster of an Apache server? Then you should definitely use .htaccess. This text-based configuration file is an easy outlet for changing server settings. Once you know how to create a file and use a few .htaccess tricks, you can begin configuring your sever.

How HTTP/2 optimizes the World Wide Web

HTTP/2 has been released and is the official successor of the internet protocol HTTP/1.1. It is already compatible with many current web browsers and servers. Up to this point, many of the bigger website operators have switched to using the new transfer protocol. But what lies behind the Hyper Transfer Protocol and what are the advantages of the new version?

Chrome 56: changes to make the web safer

For two years now, Google has been actively promoting SSL encryption for websites. The search engine giant started acknowledging data transfer protection as a ranking factor in 2014, but now wants to go one step further. Users of Google’s browser, Chrome, will soon be actively warned about websites with unsafe data exchanges. This articles explains what the planned changes are and which...

The most important HTTP status codes at a glance

404, 302, 503 – short number combinations with great significance. Users encounter server status reports time and time again and if you know how to interpret them you can act accordingly. Knowledge of HTTP codes is even more relevant for website owners. With the right know-how you can vastly improve user experience on your homepage, which will have an effect on the search engine ranking.

Server-side and client-side scripting: the differences

[Teaser] Scripting languages play a vital role in developing web projects with dynamic elements. Scripts are a fundamental component for breathing life into static HTML, using movement and interactive elements. This can be executed and interpreted from either the web server (i.e. server-side script) or from the browser (client-side script). But what exactly are the differences between server-side...