Cloudflare Outage Disrupts Crypto Frontends; Arbiscan Reports Major Outage
A widespread Cloudflare outage on 18 Nov 2025 affected several widely used crypto frontends, with Arbitrum block explorer Arbiscan calling it a “major outage.” Users also reported intermittent “internal server error” pages on social network X and data aggregator DeFiLlama, causing temporary loss of access to on-chain views and analytics. The disruptions were visible across regions as Cloudflare diagnostic pages and status updates circulated.
The outage primarily impacted front-end access and data presentation; on-chain activity and block production appeared unaffected, but the inability to view explorers, charts, and aggregated feeds can hinder monitoring, trading decisions, and developer debugging. Affected users should check official Cloudflare and platform status pages for updates and, where necessary, use alternative RPC endpoints or mirror services to verify transactions until frontends are restored.