Cloudflare was hit by an outage that knocked several major websites and services offline for global users.

OpenAI’s ChatGPT and Elon Musk’s social media platform X appear to have been affected by the Cloudflare issues.

A Cloudflare spokesperson said the company observed a “spike in unusual traffic” to one of its services before the errors.

Update 2025-11-18 (PST) (AI summary of creator comment): "Today" refers to UTC timezone.