What is a cookie?
A cookie is a small piece of text a website asks your browser to store and send back on every following visit. Cookies let a site recognise you, remember preferences and measure usage.
What cookies do we use?
Cookies are grouped by what they do. The essential ones are required for the service to work; the others can be blocked at your browser level without breaking core functionality.
Essential
Required for the site to function — login, security, language selection. You cannot opt out of these without losing access.
| Name | Purpose | Duration |
|---|---|---|
PHPSESSID | Keeps you signed in. | session |
csrf-* | Protects forms against CSRF attacks. | session |
_locale | Remembers your selected language. | 1 year |
Functional
Remember your UI preferences across visits. Blocking these does not break the site but resets your choices.
| Name | Purpose | Duration |
|---|---|---|
theme | Remembers light or dark mode. | 1 year |
fwq | Remembers your compression quality preset. | 1 year |
Analytics
Help us understand how the site is used in aggregate. Google Analytics cookies do NOT identify you personally. Anonymous IPs and aggregated reports only.
| Name | Purpose | Provider | Duration |
|---|---|---|---|
_ga | Google Analytics, distinguishes users. | Google LLC | 2 years |
_ga_ZNH00HGPM0 | Google Analytics 4, session state. | Google LLC | 2 years |
Third-party cookies
Only Google Analytics is set by a third party. We do not embed ads, social-media widgets or other trackers. Google Analytics anonymises IPs and is configured to share data with Google for the analytics report only — not for advertising.
How to manage and disable cookies
You can delete and block cookies from your browser settings at any time:
To disable Google Analytics specifically, install the official opt-out add-on.
Your rights
You can request access, correction, deletion or restriction of any personal data we process. See the privacy policy for the full GDPR breakdown.
Changes to this policy
When we add, remove or change a cookie, we update this page and the date below. Material changes are also communicated by email to registered users.
Your cookie preferences
Current state: Not decided
Last updated: 2026-06-14.