// transparency

Privacy notice.

This page describes what data python-dev.eu processes, why, and how long it's kept. No cookies are used. No consent banner is shown because none is required — but transparency is.

Last updated — 2026-04-16

01 / Controller

Who is responsible

The party responsible for data processing on this site:

Name: Dimitar Petkov
Contact: dimityrp@yahoo.com
Jurisdiction: Bulgaria (EU)

02 / Demo processing

What happens when you launch a demo

The demo on this site is a disposable environment, started on demand and destroyed automatically.

Read-only exploration. CPI Explorer displays publicly available economic data from Eurostat and FRED. You cannot upload files or submit personal data through the application.
Auto-shutdown. The stack stops after 30 minutes of inactivity. No user data is stored — the application only processes and displays public datasets.
No third-party data transit. All data processing happens on this server. No user input is sent to external APIs or LLM providers.

03 / Analytics

How traffic is measured

This site uses Umami, a self-hosted analytics tool running on the same server as the site itself (Hostinger datacenter, Frankfurt, Germany). Analytics data never leaves this server.

No cookies, no localStorage, no fingerprinting.
IP addresses are hashed with a daily-rotating salt and immediately discarded. No raw IPs are stored.
Collected: page URL, referrer, browser + OS (from User-Agent), screen size, country (from the pre-hash IP lookup).
Retention: 12 months, then deleted.

04 / Server logs

NGINX access logs

Standard web-server logs record your IP address, User-Agent, requested URL, and timestamp for each HTTP request. These are used strictly for operational purposes — debugging, abuse detection, and security incident response.

Retention: 14 days, then rotated out and deleted.
Not shared with third parties.
Not correlated with any identity.

05 / Your rights

What you can ask for

Under the GDPR you have the right to access, rectify, erase, restrict, or object to the processing of your personal data, and the right to lodge a complaint with a supervisory authority.

Practical note: this site stores nothing tied to your identity — no account, no profile, no cookies, no persistent session data. Access and erasure requests cannot be executed on an individual basis because there is nothing attached to you to retrieve or delete. If you object to any processing described above, simply stop using the site.

Supervisory authority in Bulgaria: Commission for Personal Data Protection.

06 / Changes

If this notice changes

If the data-processing setup changes materially, this page is updated and the date at the top is revised. There is no newsletter, no notification channel — check here if you care.