Cloudflare, a company that helps websites secure and manage their internet traffic, experienced issues with its global network, the company said early Tuesday, disrupting service for many websites and...

Cloudflare wrongly suspected that the widespread outage that took numerous websites offline on November 18 was caused by a DDoS attack, the company’s CEO has admitted.

Some experts suggest such incidents highlight the fragility of the modern internet, and the profound disruption that can be caused by problems at the small number of companies underpinning it.