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Service Impact Notification: Cloudflare Outage and OneFirewall Services

This is an update on the service impact caused by today’s outage at Cloudflare, Inc. OneFirewall’s platform uses Cloudflare as a CDN and edge-delivery layer for several public-facing components, and this outage temporarily affected some services.

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Background of the Outage

On Tuesday, 18 November 2025, Cloudflare experienced a global service incident that disrupted access to several major platforms, including ChatGPT, X (formerly Twitter), Spotify, and Canva. Cloudflare reported that its network, which supports an estimated ~20% of the web, encountered an internal service degradation triggered by a very large configuration file or an unexpected traffic spike affecting its traffic processing pipeline. Cloudflare stated there is no evidence of malicious activity, and the root cause is still under review.

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Impact on OneFirewall Services

Core Threat Intelligence Services remained fully operational throughout the incident. Because our public UI and API rely on Cloudflare’s CDN, customers experienced limited access during the outage.
  • Outage timeframe: approximately 6 hours from 7am UTC.
  • During this window, customers were unable to receive new IoC feeds via the public API/UI.
  • Once Cloudflare resolved the issue, all services auto-restored without any manual action required.

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Service Impact Summary

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What This Means for You

  • No action needed. Your on-prem or hosted environments require no changes or manual intervention.
  • No data loss. All IoCs generated during the outage were queued and delivered once connectivity returned.
  • No security degradation. Real-time protection and backend threat-intelligence engines ran continuously.

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Mitigation Steps by OneFirewall

To reduce reliance on a single CDN provider, OneFirewall is rolling out a multi-CDN architecture:
  • Traffic will be balanced between Cloudflare and Fastly.
  • Rollout will happen progressively over the coming weeks.
This reduces the likelihood that a single provider outage affects service availability.

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FAQ

Do I need to do anything on my on-premises instance? No. All systems have already returned to normal without intervention. Was any data, IoC, or feed information lost? No. All feeds generated during the outage were held in queue and delivered automatically once services recovered. Did this outage impact my security coverage? No. Run-time protection and threat-intelligence pipelines operated normally throughout. Will this be prevented in the future? The multi-CDN rollout described above reduces the chance of a repeat.
If you have any questions, contact your account manager or email [email protected]. The OneFirewall Team OneFirewall Alliance Ltd.