VPN Tutorials & Cybersecurity Knowledge Base
Guides, news and explainers on VPN, privacy and online freedom.
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Product UpdatesSingLinkVPN macOS 2.5 officially released: performance improved 10 times, daily free traffic increased to 1GB
SingLinkVPN macOS 2.5 is now released, supporting Apple Silicon and Intel, bringing 1GB of free daily traffic, more than 10 times performance improvement, real-time speed testing, more nodes and 24/7 customer service.
SingLink NewsSingLinkVPN Discount Guide: Stack Annual + Promo Code/Credit Card to Save Up to 51%
How to buy SingLinkVPN 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 NewsSingLinkVPN May 2026 Milestones: 2.0 All Platforms, Free Plan Open, Hong Kong App Store Utilities Top 44, 2.93M X Impressions in 7 Days
Every SingLinkVPN milestone from April–May 2026 in one post: 2.0 client across all platforms, Beta in-house protocol at 99.5% connectivity, 200 MB daily free plan now open, ranked Top 44 on Hong Kong App Store Utilities (Free), and 2.93M X impressions with 6,388 new followers in 7 days. All numbers and download links inside.
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SingLink NewsSingLink Official Announcement: Beta Servers Hit 99.5% Connectivity, All Beta Servers Now Free, Legacy Servers in Maintenance Monday
SingLink Beta servers (in-house protocol) hit 99.5% connectivity in real-world testing — vs 78% for non-Beta open-source protocol servers. All Beta servers are now free for the May holiday: 200 MB per device per day with auto-reset at 00:00. Non-Beta servers will undergo upgrade maintenance on Monday; other servers are not affected.
SingLink NewsSingLink Official Announcement: Free Plan Now Live with 200 MB Daily Data
The SingLink Free Plan is now live! Sign up — no credit card required — and enjoy 200 MB of free data every day, auto-resetting at 00:00 with high-speed free servers.
SingLink NewsOfficial SingLink Announcement: Dubai Tech Center Impacted, New Version Urgently Released
Due to the US-Iran conflict, the SingLink Dubai Tech Center has been affected. All platforms released including iOS v2.0.6 on the App Store. Paid users will receive 7+ days compensation.
SingLink NewsSingLink Logo Upgrade! Mina Evolves to Young Adult Version
SingLink brand identity fully upgraded. Mina character has evolved into a young adult version.
Knowledge BaseWhat is a Proxy Service Provider?
In the field of internet access, a proxy service provider (often called "airport" in Chinese) refers to platforms that provide proxy node services.
Knowledge BaseWhat is WireGuard?
WireGuard is a next-generation VPN protocol known for its simplicity, efficiency, and security.
Knowledge BaseWhat is a Proxy?
A proxy server acts as an intermediary in the network, helping to forward your network requests. Learn about proxy types and use cases.
Knowledge BaseWhat is SSTP?
SSTP is a Microsoft VPN protocol using SSL/TLS.
Knowledge BaseWhat is Shadowrocket?
Shadowrocket is the most popular proxy client on iOS, supporting multiple protocols.