Privacy policy
Controller: LeZo (Andrin Portmann), Usserhus 8, 6023 Rothenburg, Switzerland, info@lezo.ch (see Imprint).
The calculator
The late payment interest calculator runs entirely in your browser. The amounts, percentages and days you type in are not sent to us or to any third party, are not stored by us and are not saved in your browser (no cookies, no local storage). After you reload the page, the form is empty again. The calculator has no purchase or order function and no account.
Contact
If you write to us by e-mail, we use your details only to answer you. When we process and answer e-mails, we use AI-supported services from third-party providers, which may process data abroad (for example in the USA). Please do not send confidential information. Replies are checked before they are sent; there are no purely automated decisions. We delete e-mails at the latest 12 months after receipt, or within 30 days on request, unless a legal retention duty applies.
Hosting and technical processing when you visit this website
This website is delivered through the service Cloudflare (Cloudflare, Inc., 101 Townsend St, San Francisco, CA 94107, USA). Cloudflare forwards your request over an encrypted connection (HTTPS) to our server in Switzerland and operates the domain name system (DNS) for our domain. In doing so, Cloudflare processes technically necessary data, in particular your IP address, date and time of the visit, the requested address and browser details (for example browser type). Cloudflare acts as our processor under a data processing addendum.
Purpose and basis: We use Cloudflare so that the website is available and protected against misuse and attacks. This is our legitimate interest (Art. 6(1)(f) GDPR where applicable; under the Swiss FADP: proportionality and purpose limitation).
Transfers to the USA: Cloudflare may process data in the USA and other countries. Cloudflare states that it participates in the Data Privacy Framework (EU–US, UK extension and Swiss–US). In addition, the data processing addendum provides for the EU Standard Contractual Clauses, with the necessary adjustments for Swiss data.
What we do not do: We do not use tracking cookies or third-party advertising or analytics services.
Anonymous page counter: On our own server in Switzerland we count page views to see which pages are read. Per day we store only the requested page, the type of visit (visitor, crawler or own visit), the referring domain (the website you came from, without path) and the number. We do not store IP addresses, cookies or browser identifiers and we do not try to recognise individual persons. If a link to our pages contains an identifier (the addition “?von=”), we also count this identifier. It only designates the channel or page through which the link was distributed (for example a newsletter type or a social media page), never a person. Unknown identifiers are counted as “other”. We keep these figures for a maximum of 24 months. The basis is our legitimate interest in improving our offer.
Counting of addresses not found: If someone requests an address on lezo.ch that does not exist (error 404), we count that address to find and repair broken or outdated links. Per day we store only the path (without anything after the «?») and the count. If the visit came from another website, we additionally store only that site's domain name (e.g. «example.com», without path or parameters; at most 20 sources per address and day). We store no IP address, no cookie and no browser identifier. We delete these figures after 30 days. The basis is our legitimate interest in a working website.
Cloudflare may keep its own short-term technical logs for operation and security. We have no access to individual visitor data there and do not evaluate it. To protect against automated access (bots), Cloudflare may set technically necessary cookies, for example “__cf_bm” (valid for 30 minutes according to Cloudflare; Cloudflare states it does not use it to track visitors from site to site). These cookies are not used for advertising or audience measurement. You can block or delete cookies in your browser; access may then be limited in individual cases.
Your rights (access, correction, deletion, objection) and questions: info@lezo.ch. Complaints in Switzerland: FDPIC (edoeb.admin.ch); for visitors from the EU: the competent supervisory authority.
Transition period (former technical address): Links we sent earlier may still contain an older technical address ending in “.ts.net”. It redirects to lezo.ch. This address runs through the tunnel service Tailscale (Tailscale Inc., stated to be based in Canada; its relay servers may be located in various countries). If you open such a link, Tailscale may process technically necessary connection data such as your IP address and the time of access. The connection is encrypted with HTTPS; the encryption ends on our computer in Switzerland. We will switch this address off on 3 February 2027 at the latest; please use lezo.ch.