Blog
Guides and articles on networking, privacy and browser tools.
What Can Someone Do With Your IP Address?
What your IP address really reveals about you, what it doesn't, and how websites use it for geolocation, security and fraud scoring.
DNS Propagation Explained: Why Your Domain Changes Take Time
Why DNS changes seem to take hours to show up, how TTL caching actually works, and how to check your records from dozens of locations at once.
How to Test Your Webcam Online Before Your Next Video Call
A quick guide to running an online webcam test in your browser, understanding camera permissions, and fixing the most common webcam problems.
How to Test Your Microphone Online (and Fix It When It Fails)
How browser microphone tests work, how to run an online mic test in seconds, and what to check when your microphone is not picking up sound.
How to Spot Disposable Email Addresses (and Why They Matter)
Why throwaway email addresses flood signup forms, the signals that give them away, and how to check any address with a free email checker.
WHOIS Lookups: What Domain and IP Records Actually Tell You
A practical guide to WHOIS: what domain and IP registration records contain, why so much is redacted now, and when a lookup is still the fastest answer.