Three published tiers, plus a custom option above 10 Gbps. Not sure which tier is right? UD engineers will advise based on your site type, traffic patterns and past attack history, and provide a formal quote shortly after you enquire.
pps means packets per second, the higher the number, the more attack pressure the system can absorb.
What sets UD DDoS protection apart is dual-vendor filtering and a fully cloud-based deployment that filters and disperses attacks before they reach your infrastructure.
Attacks are first reduced by a US-brand IP transit appliance, then filtered again by a China-brand carrier-grade defence appliance, spreading risk across regions so no single vendor is a point of failure.
Initial attack-traffic reduction
Second-pass malicious-traffic filtering
The system automatically detects attack signatures and filters malicious traffic, leaving the experience for real users intact. Very large attacks may briefly slow things down, but won't take the service fully offline.
No hardware to buy and no need to replace existing servers or applications. The entire defence is deployed in the cloud and is typically live within 1 business day.
From a 1 Gbps entry tier to 10 Gbps+ custom, covering the network and DNS layers, including TCP ACK floods, DNS floods and other common types.
The system detects and neutralises attacks, then generates visual reports. Local Hong Kong support is on call around the clock, including holidays and the small hours.
A top-tier SLA that keeps you available through attacks.
Across e-commerce, fintech, media and funded organisations, kept online through real attacks.
24/7 engineer coverage; monitoring data and decisions stay within Hong Kong.
Whether you want a quote from sales or a technical consultation, a UD engineer will be in touch shortly to assess the protection you need, review your architecture and prepare a formal quote.
Small attacks run 1 to 10 Gbps, medium 10 to 100 Gbps, large over 100 Gbps. Most SMEs face small-to-medium attacks; finance, media and government bodies may face large ones. Note your past attack history when you enquire and UD engineers will recommend the right tier.
Yes. Attackers may use it for practice, extortion, competitor sabotage, or at random. Site size isn't decisive, SMEs often become easier targets precisely because their defences are weak.
Typically within 1 business day. Because UD DDoS protection is cloud-deployed, there is no hardware shipping, data-centre installation or server swap. If you are under attack right now, note it in your enquiry and UD will expedite.
About 99% of attack traffic is fully filtered, leaving the experience for real users intact. A very large attack (beyond your protection tier) may briefly slow the site, but won't take it fully offline. We recommend leaving some headroom based on past attacks or your business's sensitivity.
If you are not satisfied with the service in the first 30 days, you can request a full refund. The process is simple, handled by UD customer service, with the exact terms set out in the contract.
Yes. A WAF can block some Layer 7 (application-layer) DDoS, but large Layer 3 / 4 attacks saturate upstream bandwidth before they reach the WAF. Full protection pairs network-layer DDoS protection with an application-layer WAF.
Learn about Firewall & WAFSubmit the form at the foot of the page, noting the protection capacity you expect, whether you are currently under attack, your current architecture and your target go-live date. A UD engineer will reply shortly to arrange a technical assessment, after which we provide a formal quote. Note any emergencies in the message and we will prioritise them.