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Cloudflare Fundamentals - Increased HTTP header size limit to 128 KB

UpdateUnverifiedAdded Sep 24, 2026

CDN now supports 128 KB request and response headers πŸš€ We're excited to announce a significant increase in the maximum header size supported by Cloudflare's Content Delivery Network (CDN). Cloudflare now supports up to 128 KB for both request and response headers .

Topics: Governance, Security

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