Hysteria2: The Ultimate Censorship Breakthrough When Everything Else Fails
Yesterday, we talked about tuning VLESS to survive DPI probing. But sometimes ISPs move to “scorched earth” tactics: they simply throttle the speed of any TLS tunnel down to 10 kbps.
In those moments, Hysteria2 takes the stage. If VLESS is an invisibility cloak, Hysteria2 is a jet-powered armored tank.
Why Hysteria2 Is the Base in 2026?
Unlike most protocols that operate over TCP, Hysteria2 uses a modified QUIC (UDP). This gives it three critical advantages:
- Ignoring Packet Loss: Where a standard VPN would wait forever for packet delivery confirmation, Hysteria simply flies forward. On poor connections, this provides a 3-5x boost in speed.
- Brutal Congestion Control: The protocol literally “bites” into the channel, taking maximum available bandwidth for itself. Even if an ISP tries to throttle you, Hysteria2 forces it to deliver your packets.
- Port Obfuscation: It can hop through ports, making blocking by port number impossible.
Configuration (Brief Checklist)
To launch, you’ll need the same 3X-UI panel we configured last time, with some minor additions:
- Port: It is best to use ports
443or80(Web masking) or53(DNS masking). - Masking (Obfuscation): Be sure to set a complex password in the
Authfield. This is your key, without which the ISP won’t even be able to understand that it’s UDP VPN traffic. - Masking Site: As with Reality, use proven domains like
www.microsoft.com.
Where To Get a Server?
Hysteria2 is very CPU-intensive due to the high-speed UDP traffic. We recommend choosing servers with high per-core performance:
- Aeza (Austria/Finland) — their infrastructure handles UDP loads perfectly and doesn’t drop sessions during ISP “attacks.”
Crucial Nuance: Some mobile operators may completely block UDP. In this case, Hysteria2 will not work, and you will have to fall back to VLESS+XHTTP. Check in advance!
Need help setting up the VLESS + Hysteria2 stack for maximum resilience? We are here.