Top Free DDoS Protection Solutions - Page 2

How Many DDoS Protection Solutions Products Does G2 Track?

Total Products under this Category: 90

Category Stats (Sep 2026)

  • Average Rating: 4.42/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Azion (+0.36%) - Among all products in this category, Azion recorded the largest rating increase compared to last month

Last updated: September 15, 2026

How Does G2 Rank DDoS Protection Solutions Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 2,900+ Authentic Reviews
  • 90+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for DDoS Protection Solutions

G2 Grid® for DDoS Protection Solutions plotting products by satisfaction and market presence

Highlighted products: Cloudflare Application Security and Performance, DataDome, HAProxy, Radware Cloud DDoS Protection Service, Arbor Threat Mitigation System, AWS Shield, Azion, and Google Cloud Armor.

Underlying data: [Grid® JSON](https://www.g2.com/categories/ddos-protection/grids.json?focus%5B%5D=cloudflare-application-security-and-performance&focus%5B%5D=datadome&focus%5B%5D=haproxy&focus%5B%5D=radware-cloud-ddos-protection-service&focus%5B%5D=arbor-threat-mitigation-system&focus%5B%5D=aws-shield&focus%5B%5D=azion&focus%5B%5D=google-cloud-armor)

Gcore DDoS Protection

Gcore Security is a cloud-based platform that combines multi-layer DDoS protection across L3/4/7 with a fully featured WAF and WAAP to safeguard web applications, APIs, and infrastructure. It detects and mitigates threats in real time using globally distributed infrastructure and automated traffic filtering, ensuring stable performance even under extreme load. The platform supports fast onboarding with intuitive configuration for smaller teams, while offering enterprises advanced capabilities including a management API, Terraform provider, custom rule engines, SIEM/SOC integrations, and full log export. With specialized optimization for high-traffic, latency-sensitive workloads such as gaming and e-commerce, it delivers reliable protection and consistent application availability for businesses of any size.

Average Rating: 3.5/5.0

Total Reviews: 5

How Do G2 Users Rate Gcore DDoS Protection?

  • Logging: 8.3/10 (Category avg: 8.4/10)
  • IT Alerting: 8.3/10 (Category avg: 8.5/10)
  • Website Protection: 8.3/10 (Category avg: 8.9/10)
  • Ease of Setup: 3.3/10 (Category avg: 8.7/10)

Who Is the Company Behind Gcore DDoS Protection?

  • Seller: Gcore
  • Year Founded: 2014
  • HQ Location: Luxembourg, Europe
  • Twitter: @gcore_official
    2,922 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    504 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 80% Small, 20% Medium

What Are Recent G2 Reviews of Gcore DDoS Protection?

HaltDos DDoS Mitigation Solution

Haltdos is an AI-based Web Application Firewall and DDoS mitigation solution which protects web applications and enterprise data centers against a wide range of cyberattacks.

Average Rating: 5.0/5.0

Total Reviews: 4

How Do G2 Users Rate HaltDos DDoS Mitigation Solution?

  • Logging: 8.3/10 (Category avg: 8.4/10)
  • IT Alerting: 10.0/10 (Category avg: 8.5/10)
  • Website Protection: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind HaltDos DDoS Mitigation Solution?

  • Seller: HaltDos
  • Year Founded: 2015
  • HQ Location: Noida, India
  • LinkedIn® Page: www.linkedin.com
    49 employees on LinkedIn®
  • Ownership: Anshul Saxena

Who Uses This Product?

  • Company Size: 75% Medium, 25% Small

What Are Recent G2 Reviews of HaltDos DDoS Mitigation Solution?

What Are G2 Users Discussing About HaltDos DDoS Mitigation Solution?

RioRey DDoS Protection Platform

The RioRey DDoS Protection Platform is a network-security solution that detects and mitigates Distributed Denial of Service (DDoS) attacks for Internet service providers, hosting companies, and enterprise networks. It is designed to provide high-capacity, automated defense across on-premise, virtual, and cloud-scrubbing deployments. At the core of the platform is RIOS, RioRey’s proprietary filtering software that analyzes packet behavior in real time to identify and block malicious traffic while preserving legitimate flows. RIOS can be delivered as a hardware appliance for line-rate throughput, as a virtual machine for flexible subscription deployment, or through rCloud, RioRey’s cloud-based scrubbing service. All deployments are managed through rWeb, a unified management and analytics console included with every license. Optional Director modules extend visibility by ingesting NetFlow data to support large multi-site environments. Architecture and Function: Our platform applies algorithmic detection that focuses on underlying attack methodology rather than relying on signatures, threat feeds, or baselines. This approach allows the system to recognize and mitigate all 25 known DDoS attack classes—volumetric, state-exhaustion, protocol, and application-layer—without continuous manual tuning. RioRey’s algorithms operate deterministically, ensuring predictable behavior and low false-positive rates even under extreme load conditions. Key Features: - Unified Management: rWeb provides centralized control, alerting, and reporting for all devices and tenants from a single interface. - Multi-Tenant Operation: Designed for service-provider environments, the platform supports segregated customer policies, reporting, and branding. - Flexible Deployment: Available as on-prem appliance, VM image, or cloud-scrubbing service to match operational and financial preferences. - Low Operational Overhead: Automated mitigation and policy inheritance minimize the need for manual intervention or frequent updates. - Hybrid Scalability: On-prem filtering integrates directly with rCloud scrubbing for overflow events or large-scale volumetric attacks. Use Cases: ISPs and Hosting Providers: Deliver managed DDoS protection to downstream customers while retaining visibility and control. Enterprises and Financial Institutions: Protect critical online applications and infrastructure without adding staff burden. Education and Public Sector Networks: Maintain uptime and service availability during peak traffic events or targeted attacks. Value Proposition: The RioRey DDoS Protection Platform enables organizations to deploy carrier-grade mitigation capacity with predictable performance and minimal operational complexity. By combining algorithmic detection, unified management, and multiple delivery models, it allows network operators to tailor protection to their topology and business model. Customers can start with a single appliance or VM and expand to hybrid or cloud configurations as requirements grow,all under one management framework.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate RioRey DDoS Protection Platform?

  • Logging: 10.0/10 (Category avg: 8.4/10)
  • IT Alerting: 8.3/10 (Category avg: 8.5/10)
  • Website Protection: 8.3/10 (Category avg: 8.9/10)
  • Ease of Setup: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind RioRey DDoS Protection Platform?

  • Seller: RioRey
  • Year Founded: 2007
  • HQ Location: Bethesda, MD. USA
  • LinkedIn® Page: www.linkedin.com
    16 employees on LinkedIn®
  • Ownership: Private
  • Phone: +001 240 497 0330

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of RioRey DDoS Protection Platform?

What Are G2 Users Discussing About RioRey DDoS Protection Platform?

StormWall

StormWall is a global cybersecurity provider focused on safeguarding websites, networks, services, and IT infrastructures of any size from modern DDoS attacks. With over 13 years of experience in DDoS protection, StormWall currently serves more than 1,300 active clients worldwide and has successfully completed over 8,000 projects across 70 countries. StormWall’s extensive global filtering network spans eight scrubbing centers, delivering a combined filtering capacity of over 8 Tbps. The company offers advanced protection against all known types of DDoS attacks at every layer, from L3 to L7, ensuring robust defense against today’s advanced multi-vector threats. Antibot protection is included in the Enterprise pricing plan to safeguard your business-critical web applications from bots. With StormWall, clients pay only for legitimate traffic, avoiding extra costs associated with attacks, which makes long-term expense management predictable and transparent. Our lightning-fast 24/7 technical support team is always on hand, with a guaranteed response time of 15 minutes or less, ensuring the swift resolution of any potential issues.

Average Rating: 4.3/5.0

Total Reviews: 2

Who Is the Company Behind StormWall?

  • Seller: StormWall
  • Year Founded: 2013
  • HQ Location: Podunajské Biskupice, SK
  • Twitter: @stormwall_net
    205 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    45 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of StormWall?

Cloudbric

Cloudbric is Penta Security's leading brand in the SaaS-type security platform industry. From IoT & End Point security to enterprise web security, Cloudbric provides services safeguarding all entities requiring an Internet connection. Get more information on Cloudbric in its website : www.cloudbric.com/

Average Rating: 4.3/5.0

Total Reviews: 14

How Do G2 Users Rate Cloudbric?

  • Ease of Setup: 6.3/10 (Category avg: 8.7/10)

Who Is the Company Behind Cloudbric?

  • Seller: Cloudbric
  • Year Founded: 1997
  • HQ Location: Seoul, Seoul
  • Twitter: @cloudbric
    6,224 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    14 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Small, 36% Large

What Are Recent G2 Reviews of Cloudbric?

What Are G2 Users Discussing About Cloudbric?

Edgio

Edgio (NASDAQ: EGIO) helps companies deliver online experiences and content faster, safer, and with more control. Our developer-friendly, globally scaled edge network, combined with our fully integrated application and media solutions, provide a single platform for the delivery of high-performing, secure web properties, and streaming content. Through this fully integrated platform and end-to-end edge services, companies can deliver content quicker and more securely, boosting overall revenue and business value. All services run at the edge of our private, global network with 250 Tbps of bandwidth capacity. We process 5% of all web traffic and are rapidly growing. Edgio is trusted and relied on by TD Ameritrade, Plus500, Solvay Bank, Yahoo, Shoe Carnival, Canadian Hockey League, World Champion Fantasy, Mars Wrigley, Coach, and Kate Spade.

Average Rating: 4.1/5.0

Total Reviews: 19

How Do G2 Users Rate Edgio?

  • Ease of Setup: 7.9/10 (Category avg: 8.7/10)

Who Is the Company Behind Edgio?

  • Seller: Edgio
  • Year Founded: 2001
  • HQ Location: Scottsdale, Arizona
  • LinkedIn® Page: www.linkedin.com
    428 employees on LinkedIn®
  • Ownership: NASDAQ:LLNW
  • Total Revenue (USD mm): $200

Who Uses This Product?

  • Top Industries: Information Technology and Services
  • Company Size: 40% Large, 40% Medium

What Are Recent G2 Reviews of Edgio?

What Are G2 Users Discussing About Edgio?

Flowtriq

Flowtriq is a real-time DDoS detection and BGP mitigation platform built for hosting providers, game server operators, ISPs, and MSPs. It analyzes sFlow v5, NetFlow v5/v9, and IPFIX telemetry to detect attacks within one second and trigger automated mitigation through upstream scrubbing services or your own infrastructure. There are no hardware appliances to deploy, no traffic hairpinning, and no six-figure contracts. The platform deploys as a lightweight software agent that monitors your existing network telemetry. It establishes per-node traffic baselines using a sliding window p99 model and scores anomalies on a 0 to 100 confidence scale across seven attack families including DNS amplification, UDP floods, SYN floods, ICMP, HTTP floods, and multi-vector attacks. When a threshold is breached, Flowtriq orchestrates BGP-based mitigation through integrations with Cloudflare Magic Transit, Akamai, OVH VAC, Hetzner, or your own mitigation stack. It also integrates with PagerDuty for alerting, WHMCS and Pterodactyl for customer-facing dashboards, and routing platforms like MikroTik and pfSense for direct mitigation actions. Most DDoS detection platforms were designed for enterprises with dedicated NOC teams and enterprise budgets. Flowtriq was built from the ground up for operators who need sub-second detection without the overhead. It installs in under five minutes, starts building baselines immediately, and replaces the patchwork of open-source flow collectors and homegrown scripts that most operators rely on today. The platform supports L7 application-aware detection for nginx, Apache, Caddy, LiteSpeed, and HAProxy, and includes a 1,000-packet PCAP ring buffer for forensic capture after an incident. Flowtriq was born from real-world vulnerability research. The founding team discovered a critical vulnerability that enabled law enforcement to disrupt active botnet infrastructure globally, and built the detection engine around the attacker behavior patterns that research uncovered. In a documented case study, Flowtriq detected a multi-vector attack combining NTP amplification and SYN flood in 0.9 seconds and fully mitigated it in 11 seconds with zero disconnections during a live 240-person event. Flowtriq offers a 14-day free trial with no credit card required. Pricing starts at $9.99 per node per month, or $7.99 per node per month on an annual plan.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Flowtriq?

  • IT Alerting: 10.0/10 (Category avg: 8.5/10)
  • Ease of Setup: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Flowtriq?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Flowtriq?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated November 12, 2024