An extensive outage at Cloudflare, a key internet infrastructure provider, has disrupted access to numerous websites and online services worldwide. Cloudflare, which supports the security and management of internet traffic for thousands of sites, reported issues early Tuesday, impacting popular platforms such as Twitter (now X), Letterboxd, OpenAI, bet365, League of Legends, and payment services like Sage. The company acknowledged the problem around 7 a.m. ET, stating they were investigating a widespread issue causing higher-than-normal error rates. Although some services began to recover within the first hour, Cloudflare continued to experience disruptions, with many sites still facing errors and loading problems. The outage has raised concerns about the fragility of the modern internet, especially since Cloudflare's services are largely invisible but critical to online operations. Similar incidents occurred last month with Amazon Web Services and Microsoft Azure, affecting thousands of websites and highlighting the vulnerability of internet infrastructure. Cloudflare has not yet identified the exact cause but is actively working on mitigation efforts. The outage underscores the significant impact that technical failures at a small number of providers can have on global online activity.