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Security and privacy

Little data. Clear paths.

On a click, Qelno stores only what the statistics need – without IP address and without cookie. With Key and House everything runs on your server.

On a click

What the instance stores.

What Qelno stores on a clickStored are link and time, the origin without parameters, the country code from a local database and device type, browser and operating system as coarse classes. Not stored are the IP address, the full user agent and cookies; click data does not go to influ.cloud.Clickon your-brand.com/abcStored✓ link and time✓ origin (referrer without parameters)✓ country code from a local database✓ device type, browser, operating systemNot stored– no IP address– no full user agent– no cookie, no fingerprint– no click data to influ.cloud

The origin is stored without parameters and anchors. Countries are derived from a local database (DB-IP Lite), without requests to third-party services; only the country code is stored. Device, browser and operating system are sorted into coarse classes on the request; the user agent itself is not stored. The redirect sets no cookie.

Principles

How Qelno is built.

Your server, your location

Key and House run on your server. You choose the provider and the location, for example a data centre in Germany. The numbers stay with you.

Signed updates

Updates come from the influ.cloud update channel. The instance checks the checksum (SHA-256) and the signature (RSA) before it installs a package.

Sign-in

Users own their links. Sign-in can be protected with a second factor (TOTP).

Lean code

Plain PHP without framework or third-party libraries, PDO and MySQL. The panel loads no fonts from third-party servers.

One source for packages

Packages are available exclusively from release.influ.cloud/qelno/download/. The download is protected by a password that is valid for 30 minutes.

Hosted with a contract

For Atelier, influ.cloud operates the instance. For this we conclude a data processing agreement under Art. 28 GDPR.

Protection

What adds protection.

Password and expiry

Links can be protected with a password, given an expiry date or limited to a number of clicks.

Filtered content

HTML from the home page editor passes an allow list: no scripts, no forms, no javascript: links. Videos only from YouTube without cookies and Vimeo.

Security headers

The instance sends CSP, nosniff, Referrer-Policy and X-Frame-Options; HSTS is on by default. Error pages show no technical details.

To be clear

What the instance reports to influ.cloud.

For licence and updates to work, the instance talks to the publisher’s server:

  • Licence status: only the instance identifier
  • Daily status report: host, counter totals, the most used codes and the contact address of the instance
  • Check for new updates

Click data of individual visitors does not go to influ.cloud. An option to switch off the status report is in progress.

This website

No cookies, no tracking.

qelno.link and qelno.cloud set no cookies, do not count visits and load fonts and images only from their own server. They are built to WCAG 2.2 level AA.

Privacy policy · Accessibility