internet

Cloudflare Outage on December 5, 2025

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Cloudflare experienced a service outage on December 5, 2025, from 08:47 to 09:12 UTC, affecting 28% of HTTP traffic due to internal changes while addressing a security vulnerability in React. The incident was not caused by a cyber attack. The issue arose from configuration changes that led to HTTP 500 errors, impacting customers using specific setups with the older FL1 proxy. Cloudflare is implementing measures to prevent future incidents, including enhanced rollout protocols and improved error handling. An apology was issued acknowledging the disruption caused.

https://blog.cloudflare.com/5-december-2025-outage/

Keeping the Internet Fast and Secure- Introducing Merkle Tree Certificates

Cloudflare introduces Merkle Tree Certificates (MTCs) to transition to Post-Quantum (PQ) cryptography, addressing the threat of quantum computers to Internet security. Current TLS handshakes use excessive signatures and public keys, causing performance issues. MTCs aim to minimize this by allowing clients to validate certificates with reduced overhead (1 signature, 1 public key, 1 inclusion proof). An experiment to implement MTCs, in collaboration with Chrome, will test the concept while ensuring users' security through bootstrap certificates. The results are expected to improve both security and performance, keeping the Internet fast and secure amid evolving cryptographic needs.

https://blog.cloudflare.com/bootstrap-mtc/

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