Cookiebot incident

Cookiebot CMP (EU CDN) not accessible

Resolved after 6 hours 45 minutes, affecting CMP - Consent Banner, on June 18, 2025.

postmortem Jun 30, 2025, 11:36 AM UTC

On **June 18, 2025**, the **Cookiebot Consent Management Platform \(CMP\)** experienced a significant service disruption that affected websites using the **EU CDN feature** for the Consent Banner. The incident resulted in three key issues: * **Consent Banner Rendering Failure**: Consent banners were not displayed on impacted websites, limiting users’ ability to review or provide consent — potentially affecting transparency and compliance. * **Consent Ingestion Issues**: User consent data was not reliably captured or processed during the affected period, which may have implications for regulatory compliance depending on configuration. * **Blocking Script Behavior**: The CMP script exhibited blocking behavior in some cases, which may have negatively impacted page load performance and interfered with other client-side scripts. **Impact Scope:** This incident **only affected Cookiebot Consent Banners utilizing the EU CDN option**. Other configurations were not impacted. **Timeline:** The issue began at **10:00 AM UTC** and was resolved by **4:45 PM UTC**, lasting approximately **6 hours and 45 minutes**.

Started
Jun 18, 2025, 10:00 AM UTC
Resolved
Jun 18, 2025, 04:45 PM UTC
Duration
6h 45m
Detected by Pingoru
Jun 18, 2025, 10:00 AM UTC

Affected components

CMP - Consent Banner

Update timeline

  1. resolved Jun 30, 2025, 11:27 AM UTC

    This incident only affected Cookiebot Consent Banners with the EU CDN feature in use.

  2. postmortem Jun 30, 2025, 11:36 AM UTC

    On **June 18, 2025**, the **Cookiebot Consent Management Platform \(CMP\)** experienced a significant service disruption that affected websites using the **EU CDN feature** for the Consent Banner. The incident resulted in three key issues: * **Consent Banner Rendering Failure**: Consent banners were not displayed on impacted websites, limiting users’ ability to review or provide consent — potentially affecting transparency and compliance. * **Consent Ingestion Issues**: User consent data was not reliably captured or processed during the affected period, which may have implications for regulatory compliance depending on configuration. * **Blocking Script Behavior**: The CMP script exhibited blocking behavior in some cases, which may have negatively impacted page load performance and interfered with other client-side scripts. **Impact Scope:** This incident **only affected Cookiebot Consent Banners utilizing the EU CDN option**. Other configurations were not impacted. **Timeline:** The issue began at **10:00 AM UTC** and was resolved by **4:45 PM UTC**, lasting approximately **6 hours and 45 minutes**.

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