Individual Case Study 5

What Can a Website Learn?

A web application can read details about a visitor's browser, device platform, language, connection status, and screen without asking the visitor to type them into a form. The live report below demonstrates the breadth of information exposed through the JavaScript navigator and screen objects.

Privacy note: This demonstration only displays information inside your browser. It does not request your location, save the results, or transmit them to another system.

These values can help a legitimate site choose compatible features or adapt its layout, but combined device details may also contribute to browser fingerprinting. Browsers may intentionally return generalized values to reduce tracking.

Practices for Safer Web Use

• Use a strong, unique password for every important account and store passwords in a trusted password manager.
• Turn on multi-factor authentication so a stolen password alone is not enough to access an account.
• Install browser, operating system, and application updates promptly to receive security fixes.
• Inspect links and sender addresses before clicking, especially when a message creates urgency or requests personal information.
• Review site permission requests carefully and deny access to location, camera, or microphone unless the feature truly needs it.
• Back up important files so they can be recovered after device failure, malware, or ransomware.

Web Safety Sources