TYPO3 Know-How


Missing referrer for main

If the webserver is behind a firewall the error message TYPO3 error message Missing referrer for main can occur. Solution: Entry in AdditionalConfiguration.php

 [ More ... ]


Multi-factor authentication

With Typo3 v11 multi-factor authentication was added. We will show you how to set it up in this article.

 [ More ... ]


Perform TYPO3 restore

Learn here how to create a TYPO3 copy or restore a backup.

 [ More ... ]


Authorization assignment for backend users

Here we describe a best-practice way to build a meaningful authorization structure for TYPO3 users

 [ More ... ]


Powermail Tips and Tricks

Powermail Forms: Useful and complementary tips & tricks

 [ More ... ]


Server Response On Static Files

Since TYPO3 v9 there is a new security check "Server Response On Static Files". You will learn how to pass this successfully in this article.

 [ More ... ]


Double page tree

In TYPO3 it can happen that the page tree is displayed twice in the backend. We show you how to avoid this.

 [ More ... ]


Responsive images with TYPO3

With the srcset attribute in HTML images are loaded in optimized resolution. This is how it works with TYPO3...

 [ More ... ]


Password protection for multisites

Setting up password protection for only one website, if multiple websites are running on the TYPO3 installation.

 [ More ... ]


Cache clearing for editors

By default, TYPO3 editors do not have the option to clear TYPO3's cache. Here we show how to change that.

 [ More ... ]


Determine server response time in TYPO3

The server response time (TTFB) is important for pagespeed optimization. Here we show how to determine the parser time with the admin panel in TYPO3.

 [ More ... ]


Using Matomo without cookies

Matomo can also be used without cookies. In this article we show how to do that.

 [ More ... ]


Integrate Matomo into TYPO3 in a privacy-compliant way

To avoid the cookie consent box, you can use Matomo in a privacy-compliant way without cookies.

 [ More ... ]


Embed YouTube without cookies

This article describes how to embed YouTube videos on a TYPO3 website without cookies.

 [ More ... ]


TYPO3 website topology

What do the data streams of a "normal" TYPO3 website look like and what has to be considered during implementation to ensure the best possible data protection..

 [ More ... ]