10 Best DDOS Defense Platforms for 2025

What is a DDOS attack?

In the field of network security, DDoS (Distributed Denial of Service) is known as the “digital flood” because of its destructive power. The essence of this attack lies in the attacker's manipulation of a “bot army” of IoT endpoints (e.g., smart cameras, routers) and computers to launch a precise traffic siege on the target server. Unlike traditional single-point attacks, DDoS utilizes a distributed network architecture that coordinates tens of thousands of controlled endpoints to send high-frequency attack traffic simultaneously.  
Take a simple example: for example, you opened a breakfast store, store area of 20 square meters, usually filled with just 10 people, today suddenly came 1000 people, ask you 20 square meters of the store how to accommodate so many people at once? Moreover, these people are not real customers, but malicious trouble, all your business can not run normally, can only close the store silently bear the losses, silent tears!

🔹 DDOS attack three elements: console (hacker) → botnet (Botnet) → victim server 
🔹 DDOS fatal characteristics: scattered attack sources, large-scale traffic, difficult to trace back 
🔹 DDOS latest trend: using smart homes and other IoT devices to launch attacks

The dangers of a DDOS attack

DDOS will make your service directly collapse, that is, you can not provide any service to normal users, even if you these problems are quickly resolved, but in the meantime you may lose a lot of orders, allowing users to go to choose your competitors. More serious is such as in 2014, Sony PSN and other game servers suffered a large-scale DDDOS, hundreds of millions of players around the world can not connect to the World of Warcraft and Diablo III and other games, not only to the company to bring the monetary loss, but also to the company's brand damage, it is difficult to recover.  

10 Best DDOS Protection Platforms (2025)

 1.Cloudflare

​​Founded in 2009 by Matthew Price, Lee Holloway, and Michelle Zatlyn, Cloudflare is a U.S.-based company that provides services such as DNS, Content Delivery Networks (CDNs), and a host of other additional services. Edge Developer is a globally recognized provider of cloud-native products and developer tool platforms delivered to customers through a single, globally intelligent web platform, giving you access to faster and more secure cybersecurity services in most parts of the world with Cloudflare.  

website：https://www.cloudflare.com

2.CDN5  

Founded in 2016 by Jack Chen, a Singaporean of Chinese descent, and headquartered in California in 2020, CDN5 is the largest network security service provider in Asia-Pacific and the Middle East, and currently has branches in 5 countries around the world, with more than 300 employees and more than 40% of the core technical team.Relying on the original “BGP+CN2 Dual-Line Intelligent Routing” architecture, and through quantum encryption protocols and AI scheduling hubs to achieve the breakthrough performance of direct connection latency in mainland China is less than 28ms, and the response speed of overseas nodes is increased by 40%. The company's services cover CDN acceleration, DDoS protection, edge computing and other fields, providing enterprise-level solutions for more than 3,000 customers in cross-border e-commerce, financial payments, online games and so on.

website：https://www.cdn5.com

3.Imperva  

Radware® (NASDAQ: RDWR) is the world's leading provider of network security and application delivery solutions for physical, cloud, and software-defined data centers.Imperva DDoS Protection is an out-of-the-box DDOS protection strategy and Imperva Attack Analytics is enhanced with visibility reporting capabilities.Provides a holistic view of attack types and levels for applications including e-commerce, energy, financial services, gaming, healthcare, manufacturing and technology. 

website : https://www.imperva.com

4.GCore  

Headquartered in Luxembourg with offices in Germany, Lithuania and Georgia, Gcore is an international leader in public cloud and edge computing, content delivery, hosting and security solutions, offering web and server-level DDOS protection with edge cloud foundation, effective defense against Layer L3,L4, in addition to AI-based NGFW firewalls.  

Website：https://gcore.com  

5.Akamai  

kamai, the world's largest provider of CDN and cloud services with products and services in use around the globe, is a designated vendor for many government agencies and large enterprises, and offers three dedicated cloud solutions to provide organizations with end-to-end DDoS defense.To protect applications, data centers, and Internet-facing infrastructure (public or private) with the highest quality DDoS mitigation, it is recommended that Prolexic, Edge DNS, and App & API Protector be used in conjunction.

website：https://www.akamai.com  

6.Vercara  

Vercara is a global provider of cloud-delivered security services (formerly Neustar) Vercara offers solutions for DNS, DDoS, application security and network performance management.Offering 12+ Tbps of DDoS mitigation and a global dedicated data cleansing network to help stay online, reduce the threat of theft, and protect the bottom line, Vercara has also established technical barriers in the areas of DNS resolving and network protection with its UltraDNS and integrated security solutions, especially for enterprise users with stringent requirements for high availability and security.

website：https://vercara.com  

7.Stonecdn

stonecdn is a subsidiary of Yewsafe, a world-renowned cybersecurity company focusing on mobile application protection. Relying on its parent company's technology accumulation in the field of cybersecurity, Stonecdn GameShield has been loved by developers all over the world, and is a leader in the field of AI behavior analysis, real-time encrypted traffic detection, and protection against API misuse and reverse cracking.Stonecdn GameShield is loved by developers all over the world for its AI behavior analysis, real-time encrypted traffic detection, API abuse and reverse cracking protection. Meanwhile, Stonecdn GameShield also provides a lightweight SDK integration package to provide a full-link security solution for high-value APPs in finance, e-commerce, games, and other industries, and is suitable for enterprise customers with a global presence and high security requirements.

website：https://www.stonecdn.com

8.Nexusguard360  

Founded in 2008, Nexusguard has shifted its focus to simplifying DDoS protection for CSPs since 2016.It is currently one of the global leaders in DDOS protection, dedicated to providing network security solutions for different industries, and has a certain voice in the field of protecting websites, apps, infrastructure, DNS servers from DDOS attacks, and currently has service centers in the United States, Hong Kong, and Singapore.

website：https://www.nexusguard.com  

9.Fastly  

 
FastlyFastly, Inc.(NYSE:FSLY) was founded in March 2011, formerly known as SkyCache, renamed Fastly in May 2012, its founder and CEO is Artur Bergman, headquartered in San Francisco, USA, with overseas offices in Japan, it is a globally recognized CDN, video streaming acceleration service provider. On May 17, 2019, it officially listed on the New York Stock Exchange.

10.F5  

F5 Networks, Inc. aka F5 Corporation, headquartered in Seattle, Washington, is a veteran cybersecurity provider offering integrated security with support for content caching and edge-based containerized workloads.F5 provides applications and api located in the local, cloud, and edge cloud for the world's largest organizations and enterprises to help them achieve a best-in-class digital security experience.  

website：https://www.f5.com    

How does a DDOS defense platform provide DDOS protection?

I. Dynamic Defense Mechanism

Intelligent Traffic Scheduling Hub The next-generation firewall (NGFW) deployed at the service entrance is like a digital traffic police, which conducts real-time portrait of traffic through deep packet inspection (DPI) technology. When the system detects an abnormal surge in the number of TCP half-connections or abnormal HTTP request characteristics, it triggers a three-level response mechanism:    
Primary Filtering: Automatically block malicious IP segments based on IP reputation database (e.g. /24 segments from botnet-prone areas).    
Protocol: Recombination verification of protocol layer attacks such as SYN, Flood, etc., and AI senseless processing.    
Application layer protection: identify characteristic request patterns of CC attacks through machine learning models   


Second, elastic expansion and active defense    
At present, CDN service providers have basically realized the second-level elastic expansion capability, that is, the system detects anomalies and can expand the node in seconds, and the attack traffic is distributed to the node cleaning center through Anycast routing.    
Threat intelligence-driven protection upgrades recommend that enterprises establish a three-tier defense list:    
Real-time blacklist (RBL): docking third-party threat intelligence platforms and automatically updating malicious IP libraries    
Device Fingerprint Library: Record hardware hash values of end devices to identify forged User-Agents    
Protocol whitelisting: Limit specific communication protocols to IoT devices   

Fourth, the evolution direction of the defense system    
Intelligent O&M closed-loop deployment of log analysis systems with self-learning capabilities can automatically generate attack traceability maps (Figure 2). A provincial government cloud platform uses this technology to compress the average response time from 35 minutes to 92 seconds.    
Zero-trust architecture convergence implements dynamic trust assessment at the API gateway layer and adjusts protection policies in real time based on the context of the request (device fingerprint, geographic location, behavioral baseline). This “Least Privilege + Continuous Authentication” model enabled a securities app to successfully defend against a combination of DDoS + crash attacks launched by the APT34 organization!  

Why You Should Trust This List

This article was written by CDN5 Cybersecurity Engineer Expert Insights, who has been working in the cybersecurity field for more than 20 years, and who has conducted long-term and in-depth research on various platforms and conducted side-by-side comparisons of their products, not because she is a CDN5 employee and holds a bias. 

This ranking is in no particular order: you should choose the best protection platform according to your actual situation.

This article is based on network data and actual testing and experience summary, for reference only:

1. Source network authority data, not limited to industry reports, third-party reviews

2. Interviews with executives of large manufacturers using CDNs around the world to get advice they don't use

3. Years of research and real experience 
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