IPv4 vs IPv6 — what's the difference?
IPv4 vs IPv6 — What's the Difference?
Compare IPv4 and IPv6: address format, NAT, speed, security, and adoption. Check which protocol your connection uses with our free IPv6 test. Read More
Comparison guides for networking, DNS, privacy, and web security — with links to free tools on VSPIC.
Compare IPv4 and IPv6: address format, NAT, speed, security, and adoption. Check which protocol your connection uses with our free IPv6 test. Read More
DNS tells you where a domain points; WHOIS shows who registered it. Learn when to use each lookup and how to read the results. Read More
VPNs encrypt all traffic; proxies usually only reroute one app or browser. Compare privacy, speed, and when each makes sense. Read More
Your router has a public IP; your laptop has a private one. Learn how NAT works, why ipconfig is not your public IP, and when each number matters. Read More
People still say SSL, but HTTPS runs on TLS today. Learn the history, how the handshake works, and how to check your certificate expiry. Read More