Note
This is a cached result from 28 Sept 2026. A new scan will be available on 26 Oct 2026.

portal.gov.cz

108.6s 28 Sept 2026
Verdict

2 findings · 1 warning · 6 checks passed

Advertising assessment: Non-Compliant Grade C
67% Technical score

Tools

2
Google Tag Manager functional
GTM-WS8LQLX
Compliant
Matomo analytics Measures without consent; the tool has no cookie-less mode
4
Non-Compliant

Violations

4
Critical
Consent Mode does not update in place after the consent choice GCM_008

Affected: broken

Call gtag('consent', 'update') immediately after the visitor's choice, with the correct values for both accept and reject. Do not rely on a page reload: it creates duplicate pageviews and breaks session attribution.

Critical
Non-compliant tracking after consent was rejected GCM_010

Affected: Matomo

After a rejection the listed tools must stop storing visitor IDs and sending measurement, or run only in a verified cookie-less mode.

Warning
Consent state was not updated after the banner choice GCM_003

Make both the accept and the reject button update the consent state through the GTM Consent API or gtag('consent', 'update').

Warning
Non-compliant tracking before consent GCM_009

Affected: Matomo

The listed tools stored a visitor ID or sent measurement before the visitor chose, without a verified cookie-less mode. Load them only after consent, or configure a documented cookie-less mode that sends no IDs.

Overview

A consent banner is shown 15/15
The consent banner works 10/10
Consent can be rejected 10/10
No tracking before consent 0/20
Google Consent Mode is implemented 15/15
Google Consent Mode sends the correct states 2/10
No tracking cookies before consent 10/10
The consent choice persists 5/5
No tracking after rejection 0/5

Consent Mode

Consent Mode Implemented
Has Default Values
Updates on Accept
Updates on Reject
Persists Across Pages
GCS Configuration Valid

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