How VPN technology actually works

No jargon, no hand-waving. These explainers break down the protocols, encryption and features behind a modern VPN — so you understand exactly what's protecting you and why it matters.

DNS-over-HTTPS (DoH) Explained: Stop DNS Leaks in 2026

A plain-English guide to DNS-over-HTTPS: what your DNS queries reveal, how DoH encrypts them to stop leaks, and how Veilock keeps yours private.

VPN Protocols Explained: WireGuard, OpenVPN & More (2026)

Compare VPN protocols — WireGuard, OpenVPN, IKEv2 and obfuscation — on speed, security and censorship resistance, and learn when to use each.

VPN Split Tunneling Explained: When to Use It (2026)

A plain-English guide to VPN split tunneling: route some apps through the VPN and others direct — when it helps, the trade-offs, and how Veilock does it.

What Is a VPN Kill Switch? Why It Matters in 2026

A plain-English guide to the VPN kill switch: how it blocks traffic the instant the VPN drops, why it stops IP and DNS leaks, and how Veilock does it.

What Is AES-256 Encryption? (2026)

A plain-English guide to AES-256-GCM encryption: what makes it 'military-grade', why it's effectively unbreakable, and how your VPN uses it.

What Is an IP Address? How to Hide It (2026)

A plain-English guide to IP addresses: what your IP reveals about your location and identity, and how a VPN hides it behind a shared server address.

What Is VPN Obfuscation? Beat DPI & Censorship in 2026

A plain-English guide to VPN obfuscation: how it disguises VPN traffic as ordinary HTTPS to defeat deep packet inspection and beat censorship.

Explore more topics

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What encryption does Veilock use? +

Veilock encrypts all traffic with AES-256-GCM, an authenticated-encryption standard used to secure banking and government communications, and protects DNS lookups with DNS-over-HTTPS.

Which VPN protocol is best? +

It depends on your goal. WireGuard and modern UDP protocols are fastest; OpenVPN over TCP is the most resilient against censorship. Veilock supports both, with obfuscation for restrictive networks.

What is a no-logs VPN? +

A no-logs VPN keeps no record of your online activity — no browsing history and no DNS query logs — so there is nothing to leak, sell or hand over. Veilock keeps no historical traffic logs.

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