VPN Tutorials & Cybersecurity Knowledge Base
Guides, news and explainers on VPN, privacy and online freedom.
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SingLink NewsSingLink VPN Discount Guide: Stack Annual + Promo Code/Credit Card to Save Up to 51%
How to buy SingLink VPN for the best price? Annual plans save up to 30%, and stacking the first-purchase promo code SingLink or credit-card payment adds another 30% — Plus / Pro annual equals 51% off. See how the discounts stack, how Max/Rich data packs work, and the cheapest way to buy.
SingLink VPN May 2026 Milestones: 2.0 All Platforms, Free Plan Open, Hong Kong App Store Utilities Top 44, 2.93M X Impressions in 7 Days
SingLink Official Announcement: Beta Servers Hit 99.5% Connectivity, All Beta Servers Now Free, Legacy Servers in Maintenance Monday
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Tutorials10 Privacy Protection Tips for 2024
Practical tips to protect online privacy: from password management to VPN usage.
Knowledge BaseWhat is OpenVPN?
OpenVPN is an open-source VPN protocol known for its security and flexibility.
Knowledge BaseWhat is PPTP?
PPTP is one of the oldest VPN protocols, not recommended due to low security.
Knowledge BaseWhat is Hysteria/TUIC/Reality?
Learn about the latest proxy protocols representing cutting-edge high availability technology.
Knowledge BaseWhat is the Great Firewall (GFW)?
GFW (Great Firewall) is the colloquial term for an internet censorship system. Learn about its mechanisms.
Knowledge BaseWhat is a Ladder (Internet Tool)?
Ladder is a colloquial term for internet access tools that help users bypass network restrictions. Learn about types and usage.
Knowledge BaseWhat is Trojan?
Trojan is a proxy protocol that disguises traffic as normal HTTPS, with strong high availability.
TutorialsVPN Beginner Guide
Learn to use VPN in 5 minutes, complete tutorial from download to connection.
TutorialsVPN Security Guide
Complete VPN security guide to protect your online privacy and security.
Knowledge BaseWhat is IEPL/IPLC?
IEPL and IPLC are international dedicated lines providing stable cross-border connections.
SingLink NewsMeet Mina - SingLink VPN Official Mascot
Meet Mina, the official anime mascot of SingLink VPN with white hair and blue eyes, symbolizing freedom and connection.
Knowledge BaseWhat is a Node?
A node is a server that provides proxy services, serving as a bridge to connect to the international internet.