Global Cloudflare Outage Disrupts Crypto Platforms on November 18, 2025
On November 18, 2025, a global outage at Cloudflare disrupted its services and caused downtime for many cryptocurrency platforms and associated front ends. The company reported widespread 500 errors and failures affecting its dashboard and API, and stated that it is investigating the incident.
Several crypto-related services experienced significant interruptions due to the outage. Arbiscan, the Arbitrum block explorer, reported a major outage, while DefiLlama and X encountered intermittent internal server errors. BitMEX also confirmed outages linked to the Cloudflare issues.
The disruption affected multiple customers relying on Cloudflare's global internet services, leading to widespread downtime among crypto sites. Following the incident, Cloudflare shares (NET) fell about 3.5% in pre-market trading.
