DDoS protection forMU Online servers.
Anti-DDoS for MU Online private servers — survive Castle Siege and events.
TCP · connect 44405, game 55901, join 55557 (Season files — vary)
Why MU Online servers get attacked
Uptime is the whole game
MU Online servers get hit during Castle Siege and cash-shop events, precisely when the most players are logged in. The attacks target the connect and game servers to force a full disconnect. Maelstrom filters them at the edge so your event runs to the end.
Anycast, near your players
Your MU Online address is announced from every Cloudflare location at once — Manila and Singapore for most of South East Asia — so traffic enters at the nearest edge.
Your real IP stays hidden
Players connect to the address we give you on TCP. Your server's real IP stops being public, so it stops being a target.
Keep real player IPs
Turn on PROXY protocol and your MU Online server still logs each player's real IP for bans and analytics — no more seeing only the edge address.
Plans
Protect your MU Online server from $15.00/month
Card, one charge per month — no subscription, cancel any time.
Game Proxy
Anycast endpoint for one or a few applications. We manage it — point your DNS and go.
- Anycast endpoint we manage
- One or a few applications
- TCP & UDP, Layer 3/4 mitigation (Cloudflare Spectrum)
- 256+ Tbps network, 330+ anycast PoPs
- Cancel anytime
- 10 TB traffic / month, counted per group
rAthena Proxy
Tuned for rAthena / Ragnarok private servers — login, char and map behind one Anycast endpoint.
- Everything in Game Proxy
- Tuned for rAthena / Ragnarok Online
- Login, character and map ports covered
- Anycast endpoint we manage
- Cancel anytime
- 10 TB traffic / month, counted per group
Dedicated IP
Your own Anycast IP for unlimited apps and backends. $200 one-time setup covers IP allocation.
- Your own dedicated Anycast IP
- Unlimited applications and backends
- Set up your own Spectrum applications
- $200 one-time setup (non-refundable)
- Cancel anytime; setup fee is non-refundable
Proxy Accelerator (Custom Routing)
Accelerate accurately through a specified IP in each acceleration region. China Gateway available.
- Region-specific IP routing — accelerate through the right IP per region
- China Gateway available
- Custom routing, configured with you
- A dedicated accelerated path — not the shared Spectrum edge
- Cancel anytime
RoBrowser + Android Client
A RoBrowser web client (PWA) and a native Android APK for your Ragnarok server. One-time setup, billed yearly.
- RoBrowser web client (PWA) — play in the browser
- Native Android APK build
- One-time setup, billed per year
- Non-transferable — tied to your server, even if it runs only 3 months
- Setup fee is non-refundable
System Administrator
A dedicated admin for your server — crash response, major-error fixes, optimization and usage monitoring.
- We take responsibility when your server crashes
- Help fixing major errors
- Server optimization
- Usage monitoring
- Usage recommendations & tuning
FAQ
MU Online protection, answered
What ports does MU Online use, and do you cover them?
MU Online runs on TCP — connect 44405, game 55901, join 55557 (Season files — vary). All of it sits behind our anycast edge; you point the service at us and we forward clean traffic to your origin.
Will my MU Online server still see players' real IPs?
Yes, if you turn on PROXY protocol at checkout and read it on your side. v1 works with TCP, Simple with UDP, v2 with both. Without it your server sees our edge address instead.
How fast can I get my MU Online server protected?
Minutes. Pay by card, give us your backend IP and port, and we hand you a public address to give your players. Mitigation is always-on from that moment.
Keep your MU Online server online
Protected in minutes. No hardware, no contract, from $15.00/month.
Choose a plan