Cookie Policy

Last Updated: 2026-10-01

Introduction

ERDesigns (“we”, “us”, “our”) operates the website https://erdesigns.be (the “Website”). This Cookie Policy explains what cookies and similar technologies we use, why we use them, and how you can manage your preferences.

By using our Website, you acknowledge that you have read and understood this Cookie Policy.

What Are Cookies?

Cookies are small text files placed on your device when you visit a website. They are used to make websites work efficiently and provide information to website operators.

“Session” cookies are deleted when you close your browser. “Persistent” cookies remain on your device for a set period or until you delete them.

We also use localStorage, a browser storage mechanism similar to cookies, to store your theme preference, the public key of your own ERD-Hub when you connect one, and any report design you choose to save in the playground.

Cookies and Storage We Use

Essential Cookies

These are strictly necessary for the Website to function, or store a display preference you set explicitly (the colour theme). They cannot be disabled.

Name	Type	Purpose	Retention
ERDSESS	HTTP cookie	PHP session cookie — maintains login state and CSRF protection for the admin panel. Contains only a session identifier; no personal data. Configured with HttpOnly, Secure, and SameSite=Strict flags.	Session (deleted when you close your browser)
erd-cookie-consent	localStorage	Stores your cookie consent decision so the consent banner is not shown on every page load. Contains only the categories you accepted or rejected and a timestamp. No personal data is sent to the server.	Persistent until you clear browser data
erd-theme	localStorage	Stores your selected colour theme (light, dark, or system). Set only when you explicitly click the theme toggle button. No data is sent to the server.	Persistent until you clear browser data
hub_claim	HTTP cookie	Set only on the ERD-Hub connection page (/hub/connect) when you use a one-time link: it keeps your use of the link for 15 minutes, so you can start ERD-Hub and try again without spending the link twice. Contains a random value and nothing about you; sent only to the link's own requests. Configured with HttpOnly, Secure, and SameSite=Strict flags.	15 minutes, or until the link is completed
erd-hub.hubKey.<suite>	localStorage	Stored when you connect to ERD-Hub on your own computer. It is the public key of your ERD-Hub, so the website can tell it from another program on your computer. It grants nothing and is never sent to the server.	Persistent until you clear browser data

Functional Storage

These store your preferences, and anything you ask the site to keep for you, to enhance your experience. They are optional: if you reject this category in the cookie banner, everything listed here is deleted from your browser and the controls that write it are turned off.

No functional storage is currently in use.

What We Do NOT Use

• We do not use third-party analytics cookies (no Google Analytics, no tracking pixels)
• We do not use advertising or marketing cookies
• We do not use social media cookies or plugins
• We do not track you across other websites
• Our server-side analytics record only the page path and date — no IP addresses, no browser fingerprints, no cookies

Your Consent

Essential cookies are always active because they are necessary for the Website to function. For functional storage (theme preference), you can manage your preferences via the cookie banner or by clearing your browser's localStorage.

Your Rights

Under the General Data Protection Regulation (GDPR), you have the right to:

• Access information about the cookies and storage we use
• Withdraw your consent at any time
• Request deletion of data associated with cookies

For any questions about our cookie practices, contact us at privacy@erdesigns.be.

Supervisory Authority

If you believe your data protection rights have been violated, you have the right to lodge a complaint with the Belgian Data Protection Authority (Gegevensbeschermingsautoriteit — GBA):

• Website: https://www.gegevensbeschermingsautoriteit.be

Changes to This Policy

We may update this Cookie Policy from time to time. When we do, we will update the “Last Updated” date at the top and, where appropriate, ask for your consent again.

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ERDesigns (Ernst Reidinga) — Belgium
Contact: privacy@erdesigns.be