The Advanced URL Filtering cloud now leverages a new inline deep learning engine that analyzes suspicious web page content to protect users against zero-day web attacks. By employing cloud-based inline web page payload analysis, Advanced URL Filtering is capable of detecting and preventing advanced and targeted phishing attacks, and other web-based attacks that use advanced evasion techniques such as cloaking, multi-step attacks, CAPTCHA challenges, and previously unseen one-time-use URLs.