
Cookie policy
Cookies and audience measurement
We store your privacy settings in the iqse_consent cookie. Your language preference is stored only with your consent. Matomo also starts only after you consent to Statistics. Matomo uses no analytics cookies of its own, but processes device and usage information. Operating without cookies does not by itself remove the need for consent.
Entries and access
| Name | Provider | Purpose | Type | Legal basis | Retention |
|---|---|---|---|---|---|
iqse_consent | IQstruct Engineering GmbH | decision per group, time, text version and consent ID | HTTP cookie | section 25 (2) no. 2 TDDDG | six months |
iqse_sprache | IQstruct Engineering GmbH | remember selected language | HTTP cookie | section 25 (1) TDDDG | 29 days |
| Matomo | IQstruct Engineering GmbH, hosted by Hetzner | audience measurement using device and usage information | JavaScript access; no analytics cookies of its own | section 25 (1) TDDDG | raw data on our server for 90 days |
Your browser transmits HTTP cookies to our server with matching requests. The information processed by Matomo and the legal bases for processing are described in our privacy policy.
Your decision
You may allow or decline statistics and language preferences separately. Declining, closing with the cross or pressing Escape leaves only the necessary group active. You can use the website without consenting. We do not use marketing cookies.
You can change or withdraw consent at any time through Privacy settings. Withdrawing statistics consent reloads the page and stops further measurement. Withdrawing language preferences deletes iqse_sprache. Withdrawal does not affect the lawfulness of earlier processing. If your browser sends Do Not Track, measurement does not start. You may also delete cookies in your browser; your decision will then be requested again.
Version
15 September 2026, version 4.