Scanned on 24 February 2026 at 12:49 UTC
As of , o2arena.cz has a GDPR compliance score of 10/100 with 12 pre-consent tracking violations detected.
Only Privacy Score 100 means full compliance. These violations mean that before you could even click the Cookie Consent banner, this website already collected your personal data and shared it with third parties. Learn why this matters (our blog) →
Who is responsible? The website owner is solely responsible for these violations and in general often benefits monetarily (directly or indirectly) from collecting and sharing your data without your consent.
Tracks your browsing behaviour to build a profile and serve targeted ads before you give consent.
Low-severity concerns: external fonts, empty tag containers, WebSocket connections, and third-party storage.
Services and cookies that comply with GDPR requirements. No consent needed.
Pending classification by our team. No impact on your privacy score.
These items are pending classification. No impact on your privacy score.
Most findings on this page are configuration problems, not catastrophes. These plain-language guides explain what each one means and how to fix it, written for website owners rather than lawyers.
All guides live at gdprscanner.eu/guides.
o2arena.cz has a GDPR compliance score of 10/100.
A score below 50 indicates serious GDPR compliance failures. Multiple high-severity trackers or advertising scripts load before consent, exposing the website to potential fines of up to €20 million or 4% of annual global turnover under GDPR Article 83.
12 trackers detected loading before user consent:
Legal basis: This violates GDPR Article 6(1)(a), ePrivacy Directive Article 5(3), and CJEU Planet49 (C-673/17). Advertising trackers profile visitors for targeted ads. The CJEU's Planet49 ruling (1 October 2019) confirmed that consent must be active and informed — pre-ticked boxes or implied consent are insufficient. This applies to all cookies and tracking mechanisms used for advertising purposes.
Legal basis: This violates ePrivacy Directive Article 5(3) and CJEU Planet49 (C-673/17). Third-party storage access (localStorage, sessionStorage) on external domains constitutes accessing device information without user consent. The Planet49 ruling confirmed that the ePrivacy Directive's consent requirement applies to all information stored on or accessed from a user's terminal equipment.
This GDPR compliance scan of o2arena.cz was performed by GDPR Scanner, a pre-consent privacy scanning tool. The scan captures all trackers, cookies, and third-party scripts that load before a user clicks any consent button.
Under GDPR (General Data Protection Regulation), websites must obtain explicit consent before processing personal data. Any tracker or cookie that fires before consent is a potential violation of EU privacy law.
A privacy score of 100/100 means the website loads zero trackers and zero tracking cookies before the user gives consent. This is the standard required by GDPR Article 5(1)(a) and Article 7.
Essential cookies (session management, security tokens) and first-party functional cookies do not incur penalties, as they are covered by the legitimate interest legal basis. See an example: playhth.com scores 100/100.
✓ No tracking cookies detected before consent. 3 essential/functional cookies were found, which are exempt under legitimate interest.
o2arena.cz has serious GDPR compliance deficiencies with a score of 10/100 and 12 violations detected. Multiple trackers and cookies are loading before user consent, which constitutes a clear breach of the ePrivacy Directive Article 5(3).
This level of non-compliance exposes the website operator to significant regulatory risk. Under GDPR Article 83(5), infringements of the basic principles for processing — including conditions for consent — are subject to administrative fines of up to €20 million or 4% of annual global turnover. Recent enforcement trends show increasing DPA activity across the EU.
Immediate action is recommended: audit all third-party scripts, implement a Consent Management Platform (CMP) that blocks non-essential trackers before consent, and verify compliance through re-scanning.
o2arena.cz scores 10/100 with 12 violation(s) detected. Trackers or cookies were found loading before user consent.
Our scan detected 14 tracker(s) loading before consent, including google-tag-manager, facebook-pixel, Storage (connect.facebook.net).
Yes, 3 cookie(s) were detected before the user interacted with any consent banner.
o2arena.cz has a GDPR compliance score of 10/100 as of 24 February 2026. A score of 100 means no trackers or cookies load before consent. o2arena.cz currently has 12 violation(s) affecting its score.
o2arena.cz should implement a Consent Management Platform (CMP) that blocks all non-essential trackers and cookies until the visitor gives explicit consent. This includes configuring tag managers like Google Tag Manager to use consent-aware triggers, self-hosting external fonts, and auditing all third-party scripts. After making changes, re-scan with GDPR Scanner to verify compliance.