What Is a DNS Leak? (And How to Test and Fix It)

Featured image for article about DNS leaks — illustration of data escaping a VPN tunnel through a crack

Last updated: June 02, 2026 · 15 min read You open your VPN app. It says Connected. Green light. You feel protected. But there is one specific leak that catches even careful VPN users off guard — and most people never bother to check for it. Your real IP address might be hidden, but your … Read more

What Is VPN Split Tunneling? (And When Should You Use It?)

A laptop with its internet connection splitting into two paths — one through an enclosed VPN tunnel and one open direct connection — illustrating VPN split tunneling

Last updated: June 12, 2026 · 15 min read You opened your VPN app, tapped into the settings, and found it there: split tunneling. Somewhere under Advanced, or Connection, or maybe just sitting in its own toggle. No explanation. Just a name that sounds like something might get cut in half. Most people either ignore … Read more

What is OpenVPN DCO?

Last updated: May 24, 2026 · 15 min read If you’ve been reading about VPNs, you’ve almost certainly come across OpenVPN. It’s been the industry’s gold standard for over two decades — battle-tested, highly secure, and trusted by security professionals worldwide. But for a long time, it had one frustrating weakness: speed. OpenVPN was noticeably … Read more