Guides
Plain-language answers about IP addresses, networks and online privacy.
- How does IP geolocation actually work?
IP geolocation matches your address against registration, latency and crowdsourced data — accurate by country, approximate by city, never by street.
- How to change your DNS (and what it actually does)
Changing DNS points your device at a different resolver for speed, filtering or privacy — but it never changes your public IP. Here's how.
- IPv4 vs IPv6: what's the difference?
IPv4 has room for 4.3 billion addresses and ran out years ago; IPv6 has room for far more. How dual-stack, adoption and privacy differ.
- Static vs dynamic IP: what's the difference?
A static IP never changes; a dynamic one is reassigned by your provider over time. Here's how to tell which you have and who actually needs static.
- What does my IP address reveal about me?
Your IP exposes your approximate city, your internet provider and your network type — but not your name or exact address. Here is exactly what websites can and cannot learn.
- VPN vs proxy: what does each one actually hide?
A VPN encrypts everything and reroutes it; a proxy redirects one app. What each hides, what a VPN never hides, and how VPNs get detected.
- What is an ASN (Autonomous System Number)?
An ASN identifies the network that actually carries your traffic — usually your real ISP, even behind a reseller. Here's what it means and shows.
- What is CGNAT (Carrier-Grade NAT)?
CGNAT shares one public IPv4 address across hundreds of customers. Learn why it exists, its symptoms, how to check for it, and how to escape it.