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Cloudflare KV API Experiencing Latency and Timeouts

What happened

Cloudflare is investigating performance issues affecting a subset of KV API requests, causing increased latency and timeouts as of April 13 at 20:15 UTC. The incident is also impacting Workers using Assets, which are experiencing errors. Cloudflare has clarified that KV access through bindings remains unaffected. The cloud infrastructure provider has acknowledged the issue but has not yet provided an estimated resolution time.

Business impact

Enterprise applications using Cloudflare KV for session management, feature flags, or content delivery may experience degraded performance or failures. E-commerce sites relying on KV for cart persistence, personalization, or A/B testing could see increased page load times or checkout errors. Teams should prepare for potential user experience issues and monitor application performance metrics closely.

Background

Cloudflare KV is a globally distributed key-value store commonly used by enterprise teams for caching, configuration management, and edge computing applications. Many organizations rely on KV for critical website functionality, making performance issues particularly concerning for teams managing high-traffic sites. This type of infrastructure incident highlights the dependency risks inherent in serverless and edge computing architectures.

What this means for your team

Monitor your applications immediately if they use Cloudflare KV API calls directly rather than through bindings. Check error rates and response times in your monitoring dashboards for any KV-dependent functionality. Review your incident response procedures and ensure you have fallback mechanisms for critical KV-dependent features like user sessions or dynamic content. Document which applications use KV API versus bindings to better assess impact during future incidents.

What to watch

Monitor Cloudflare's status page for resolution updates and post-incident analysis. Watch for any expansion of the issue to KV bindings or other Cloudflare services that could broaden the impact.

Sources

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