Restricting web-based content involves enforcing policies and technologies that limit access to potentially malicious websites, unsafe downloads, and unauthorized browser behaviors. This can include URL filtering, download restrictions, script blocking, and extension control to protect against exploitation, phishing, and malware delivery.

• Use solutions to filter web traffic based on categories, reputation, and content types.
• Enforce policies that block unsafe websites or file types at the gateway level.

• Implement tools to restrict access to domains associated with malware or phishing campaigns.
• Use public DNS filtering services to enhance protection.

• Configure CSP headers on internal and external web applications to restrict script execution, iframe embedding, and cross-origin requests.

• Disable unapproved browser features like automatic downloads, developer tools, or unsafe scripting.
• Enforce policies through tools like Group Policy Management to control browser settings.

• Use SIEM tools to collect and analyze web proxy logs for signs of anomalous or malicious activity.
• Configure alerts for access attempts to blocked domains or repeated file download failures.

Use intrusion detection signatures to block traffic at network boundaries.