I solve
marketing puzzles.

Ten years in marketing, from campaigns to running a department, with a solid technical background.I've spent ten years in marketing, from running campaigns to running a department. My technical background comes in handy when a project crosses into data, development or automation.

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Cookies

Last updated August 2026

This page explains what the website stores in your browser and lets you control it. Until you allow more, the site stores only your consent choice.

Essential

Remembers the consent choice you make here, and nothing else. It cannot be switched off because the site would otherwise forget your choice.

Analytics

Off until you switch it on. If enabled, Google Analytics and Microsoft Clarity may measure visits and how the site is used. The setting controls the relevant Consent Mode signals for all analytics tags.

Advertising

Off until you switch it on. If enabled, Google Ads, Meta Pixel, TikTok Pixel and LinkedIn Insight Tag may store data for conversion measurement and remarketing.

Saved

Data stored on this device

This site keeps its own record of your consent in this browser and no other local profile about you. You can download or delete that record here. Deleting it brings the cookie banner back. To exercise rights over data held by an advertising or analytics provider, see the Privacy Notice.

Deleted

Who runs the website

This website is operated by Mgr. Martin Ševčík, marketing consultant, Hlinky 277/29, 603 00 Brno, Czech Republic, Identification No. 06860583. Questions about cookies or personal data may be sent to martin@sevcikmarketing.com.

What is a cookie?

A cookie is a small text file a website places in your browser so that it can recognise the device later. Some cookies keep the site working; others measure visits or whether an advertisement led to an action.

Cookie categories used on this site

Essential cookies keep the site working and remember the consent choice you make here. They do not require consent because the site cannot provide the requested function without them. Analytics and advertising cookies run only after you allow them, and you can withdraw that permission on this page at any time.

How the settings work

Your choices are translated into Google Consent Mode v2 signals: ad_storage, ad_user_data, ad_personalization and analytics_storage. The default is denied, and no optional tag loads before you make a choice. If you change the settings here, the site applies the change immediately.

Tools covered by these settings

Google Tag Manager controls the tags. Analytics tools include Google Analytics and Microsoft Clarity. Advertising tools include Google Ads, Meta Pixel, TikTok Pixel and LinkedIn Insight Tag for conversion measurement and remarketing. Each is controlled by the choices on this page.

Where the data may go

Google, Meta, TikTok, Microsoft and LinkedIn process data under their own terms, and some processing may take place in the United States. Where a recipient holds a valid EU–US Data Privacy Framework certification, transfers may rely on that framework. Other lawful safeguards must be used where the framework does not apply.

Managing cookies in your browser

In addition to the controls on this page, your browser can delete stored cookies or block new ones. A private‑browsing window normally removes them when it closes. Settings are device‑specific, so you need to make the choice separately on your phone, computer and other devices.

Your rights

Depending on the circumstances, you may have rights of access, correction, deletion, restriction, portability and objection. Requests are free and may be sent by email. If you are not satisfied with my response, you may complain to the Czech Data Protection Authority at uoou.gov.cz. See the Privacy Notice for details.

Name	Category	Provider	Duration	Purpose
sm_consent	Essential	This website	400 days	Stores your consent choice and its consent ID.
_ga	Analytics	Google Analytics	2 years	Uses a random identifier to distinguish returning visitors for traffic statistics.
_ga_#	Analytics	Google Analytics	2 years	Stores session state and visit counts for this website.
_clck	Analytics	Microsoft Clarity	1 year	Links a visitor to their Clarity usage record.
_clsk	Analytics	Microsoft Clarity	1 day	Combines pages viewed during one visit into a single session record.
_gcl_au	Advertising	Google Ads	3 months	Stores an ad‑click identifier so a conversion can be attributed to an advertisement.
_fbp	Advertising	Meta Pixel	3 months	Identifies the browser to Meta for conversion measurement and remarketing.
_ttp	Advertising	TikTok Pixel	13 months	Identifies the browser to TikTok for conversion measurement and remarketing.
li_fat_id	Advertising	LinkedIn Insight Tag	30 days	Stores an indirect member identifier for conversion measurement and remarketing.
bcookie	Advertising	LinkedIn	1 year	Stores a LinkedIn browser identifier used across its tags.
_rdt_uuid	Marketing	Reddit Pixel	90 days	Identifies the browser to Reddit for conversion measurement and remarketing.
muc_ads	Marketing	X (formerly Twitter)	13 months	Identifies the browser to X advertising for conversion measurement.
CLID	Analytics	Microsoft Clarity	1 year	Additional identifier Clarity sets from its own domain.
__oppref	Marketing	OpenAI Pixel (ChatGPT Ads)	Not stated by the provider	Stores the click reference from a ChatGPT ad so a later conversion can be matched to it.

I solvemarketing puzzles.