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Privacy Policy

Last updated: June 18, 2026
Scope: kereszteszsolt.hu personal website
Notice issuer: Keresztes Zsolt
Contact: Contact page , protected contact email or protected contact email


1. Summary

The kereszteszsolt.hu website is a static personal website for professional presentation, public projects, digital products, content links, and public profile links.

The website does not require an account or login. It does not use advertising cookies, marketing pixels, ad profiling, or marketing tracking.

The website itself does not set first-party cookies. It may use localStorage to remember privacy choices and, if separately enabled, convenience preferences such as language and appearance mode.

The website may use Cloudflare or a similar infrastructure provider for hosting, DNS, CDN, security, bot protection, traffic management, and technical delivery.

Cloudflare Web Analytics / Real User Monitoring (RUM) is optional on this website and is loaded only when analytics is enabled in the privacy settings.


2. Scope

This Privacy Policy applies to the kereszteszsolt.hu website, including public pages, legal pages, project pages, product links, support pages, content pages, and public profile links.

It does not apply to third-party websites, browser stores, installed browser extensions, GitHub, YouTube, TikTok, LinkedIn, Instagram, Facebook, X, Linktree, Buy Me a Coffee, Cloudflare pages outside this website, or other external services opened from links on the website.


3. Local browser storage and choices

The website itself does not set first-party cookies. It does not use IndexedDB.

The website may use localStorage in the visitor's browser for the following purposes:

localStorage keyPurpose
kereszteszsolt.privacyConsentRemember the privacy choice, consent version, update date, saved time, convenience-preference decision, and analytics decision
kereszteszsolt.localeSave the selected language when convenience preferences are enabled
kereszteszsolt.themeSave the selected light, dark, or system appearance mode when convenience preferences are enabled

The localStorage entries are not used for marketing tracking, advertising, or creating a central user profile.

If the visitor chooses essential-only operation or erases all choices, optional convenience preferences are removed and the optional analytics script is not loaded.

If the URL contains a language prefix, that URL selects the language. Entry routes without a language prefix may use an allowed saved language preference or the browser language signal to redirect to a supported language.


4. Essential technologies

The website may use essential technologies for secure and stable operation and to remember privacy choices. These may include localStorage, beacons, Cloudflare security cookies, Cloudflare challenge scripts, bot-protection scripts, email-protection scripts, or other technical delivery scripts.

These technologies are part of essential operation where needed and are not used for advertising or marketing tracking.

Cloudflare security cookies and technical scripts do not necessarily appear during every visit. They may appear only if the relevant Cloudflare security, challenge, bot-protection, load-balancing, rate-limiting, email-protection, or traffic-management feature is active and needed.

Examples may include:

Technology or featureWhen may it appear?Purpose
Cloudflare security cookies, for example __cf_bmIf bot protection, Bot Fight Mode, Bot Management, or challenge-related protection is active and neededDetect bot traffic, handle automated or suspicious requests, and protect the website
Cloudflare challenge cookie, for example cf_clearanceAfter a Cloudflare Challenge, Managed Challenge, Under Attack Mode check, or similar security checkRemember that the visitor completed the security check
Cloudflare load balancing or traffic management cookies, for example __cflb or _cfuvidIf the relevant Cloudflare feature is active and neededSupport stable delivery, load balancing, rate limiting, or traffic management
Cloudflare technical scriptsIf Cloudflare runs a security check, email protection, bot protection, or technical delivery featureProvide security, availability, email address protection, or technical delivery

More information about Cloudflare cookies is available in the Cloudflare Cookies documentation (opens in a new tab).


5. Optional Cloudflare Web Analytics / RUM

Cloudflare Web Analytics / RUM is optional on this website. It is loaded from static.cloudflareinsights.com only after analytics is enabled in the privacy settings.

This measurement is used for aggregate traffic and performance understanding, not for marketing tracking, advertising, or creating individual visitor profiles.

The following categories and metrics may be involved in aggregate measurement:

Category or metricMeaning
URL or page pathIdentifies the visited page or page section
BrowserType of browser used by the visitor
Operating systemType of operating system used on the visitor's device
CountryCountry-level aggregate view of visits
Affected page elementPage part or element related to a performance metric
LCPLargest Contentful Paint, a loading performance metric
INPInteraction to Next Paint, a responsiveness metric
CLSCumulative Layout Shift, a visual stability metric

According to Cloudflare, Cloudflare Web Analytics does not use client-side state such as cookies or localStorage to collect usage metrics and does not fingerprint individuals for analytics display.

More information is available in the Cloudflare Web Analytics documentation (opens in a new tab) and the Cloudflare Privacy Policy (opens in a new tab).


6. External links and platforms

The website may link to GitHub repositories, browser stores, YouTube, TikTok, LinkedIn, Instagram, Facebook, X, Linktree, Buy Me a Coffee, product websites, public project pages, or other external services.

Opening external links is optional. External services may process data under their own terms, privacy policies, cookies, accounts, logs, analytics, payment rules, and technical limits.

These third-party services are not controlled by the kereszteszsolt.hu website.


7. Contact and support messages

If the visitor uses a contact channel, public profile, email address, social platform, donation platform, or other external communication method, the message content, sender details, and necessary technical metadata may be processed by the relevant external service and used to reply or handle the request.

The current contact options are listed on the Contact page .

Unnecessary confidential information, passwords, secret keys, private tokens, payment data, or sensitive personal data should not be sent.


8. International transfers

The website itself does not create a central account or user profile.

External infrastructure, analytics, contact, payment, donation, social, video, repository, or platform providers may use servers outside the visitor's country or outside the EU/EEA. The relevant provider's own privacy terms and transfer mechanisms apply.


9. Privacy questions

Questions about website privacy or data actually held by the website operator can be sent through the Contact page , protected contact email, or protected contact email.

For data created in third-party services or infrastructure, the relevant third-party provider's own privacy process may need to be used.


10. Changes

This Privacy Policy may be updated from time to time. The current version is available on the website.

Keresztes ZsoltKeresztes Zsolt

Software Developer | Engineer | Content Creator

I work as a software developer, have an engineering background, and create content about STEM, self-development, science, and technology. This site collects my digital products, public projects, professional content, and important links.

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