Cloudflare's 'pages.dev' and 'workers.dev' domains, used for deploying web pages and facilitating serverless computing, are being increasingly abused by cybercriminals for phishing and other malicious activities. [...]
source https://www.bleepingcomputer.com/news/security/cloudflares-developer-domains-increasingly-abused-by-threat-actors/
source https://www.bleepingcomputer.com/news/security/cloudflares-developer-domains-increasingly-abused-by-threat-actors/