Privacy
Short version: no cookies, no ads, no accounts, no tracking across sites, and no consent banner because nothing here needs one. I count visits with a self-hosted, cookieless tool. The demos and calculators run entirely in your browser, and what you type into them never leaves it.
Who is responsible
Arda Hadimioglu, reachable at [email protected]. Postal address in the Impressum.
Hosting
The site runs on a server in Nuremberg, Germany, rented from Hetzner Online GmbH, Industriestr. 25, 91710 Gunzenhausen, Germany, under a data processing agreement (Art. 28 GDPR). The web server keeps no access logs.
Cloudflare
Every request goes through Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA, which provides DNS, encryption and protection against attacks. To deliver the page, Cloudflare processes your IP address and technical request data (time, URL, browser) for a short time. Cloudflare is certified under the EU-US Data Privacy Framework, and its data processing addendum includes the EU standard contractual clauses. Legal basis: Art. 6 (1) (f) GDPR, my legitimate interest in a secure, reliable site.
Visitor statistics
I use Umami, an open-source analytics tool that I run myself at stats.ardahdmi.com, on the same Hetzner server. It sets no cookies and does not follow you to other sites. It records the page you visit, the referring site, browser, operating system, device type, screen size, language and country. Your IP address is used only to derive the country and is not stored. Visits in one session are grouped by an identifier hashed from your IP address, browser and a salt that changes regularly, so you can't be recognised over time. If your browser sends Do Not Track, nothing is recorded. Legal basis: Art. 6 (1) (f) GDPR, my interest in knowing which pages and tools people use.
Why there is no cookie banner
Consent is required for storing or reading information on your device unless it is strictly necessary for a service you asked for (§ 25 TDDDG, Art. 5 (3) ePrivacy Directive). This site sets no cookies at all. The only entries it writes to your browser's storage are the ones described in the next section, and each exists solely so that a tool or demo you opened works the way you left it. That is strictly necessary, so no banner is shown and no consent is collected.
Storage on your device
Trailer fit keeps your current inputs in the page address, so you can bookmark or share a calculation, and in your browser's local storage, so the tool reopens as you left it. The Charge Smart demo saves one entry noting that you've seen the rules, so they don't open on every visit. Nothing in this storage is sent to me or anyone else; clearing site data removes it. Fonts and scripts are served from this domain, so no other services are contacted.
Tools and demos
All calculations happen in your browser. The dimensions, weights and quantities you type into a calculator, and the moves you make in a demo, are never transmitted. The result pages are static files; there is no server-side processing of your inputs. The figures are planning estimates, not advice; the Impressumand each tool page say what that means.
If you email me, I receive your address and message and use them only to reply. Mail to [email protected] is forwarded by Cloudflare Email Routing (Cloudflare, see above) to my mailbox, which is hosted by Google (Gmail). I delete the correspondence when it is no longer needed. Legal basis: Art. 6 (1) (f) GDPR, answering your request, or Art. 6 (1) (b) where it precedes a contract.
Links to other sites
Links to LinkedIn, GitHub and the sources cited on tool pages are plain links. Nothing is loaded from those sites until you click, and their own privacy policies apply from then on.
Your rights
You have the right to access, rectify and erase your data, to restrict processing, to data portability, and to object to processing based on legitimate interest (Art. 15–18, 20, 21 GDPR). Email me to use any of them. You can also complain to a data protection supervisory authority (Art. 77 GDPR), for example the one of the German state where you live.
Changes
I update this notice when the site changes, for example when a new tool stores something on your device. The date below is the last change.
Last updated .