Arbor DDoS vs Neustar UltraDDoS [EOL] comparison

NETSCOUT and TransUnion are both solutions in the Distributed Denial-of-Service (DDoS) Protection category. Additionally, 95% of NETSCOUT users are willing to recommend the solution, compared to 100% of TransUnion users who would recommend it.

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Executive SummaryUpdated on Nov 2, 2025

Neustar UltraDDoS EOL and Arbor DDoS compete in the DDoS mitigation category. Arbor DDoS appears to have the upper hand due to its superior feature offerings which deliver comprehensive protection and better long-term ROI.

Features: Neustar UltraDDoS EOL offers efficient traffic monitoring, swift threat detection, and reliable support. Arbor DDoS provides advanced analytics, customizable security solutions, and extensive feature sets for comprehensive protection. The flexibility and depth of security offered by Arbor highlight a significant feature differentiation.

Ease of Deployment and Customer Service: Neustar UltraDDoS EOL is recognized for simple deployment coupled with strong customer service that ensures smooth operation. Arbor DDoS has a more complex deployment process but provides detailed guidance and dedicated support to manage setup intricacies effectively.

Pricing and ROI: Neustar UltraDDoS EOL is a cost-effective solution with satisfactory ROI due to low initial setup costs. Arbor DDoS requires higher upfront investment but offers greater ROI over time through its extensive features.

To learn more, read our detailed Distributed Denial-of-Service (DDoS) Protection Report (Updated: May 2026).

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

May 2026

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Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Cloudflare

Featured Reviews

M.A. Faisal

General Manager at bKash Limited

Advanced protection has secured critical web workloads and provides clear traffic visibility

From a security perspective, there remains a security loophole, as some browsers in the market can bypass the Turnstile solution, which requires approximately 40 seconds to do so. From a performance perspective, this is acceptable. We also tried Google reCAPTCHA, and that can also be bypassed. From a security perspective, I would say neither solution is completely secured. Regarding uptime, we have faced a couple of incidents due to Cloudflare in recent years, so I cannot say we receive 100% uptime for our region. We sometimes face challenges, including downtime and other issues. As a result, we are not receiving 100% uptime from Cloudflare's solution. Since most of our customers are in this region, we need alternatives. We need something more competitive than Cloudflare. Unfortunately, in Bangladesh, Cloudflare has three points of presence already, and we cannot find any other solution provider in Bangladesh as an alternative, which presents another challenge. Competitor solutions have more attack signatures, which ensure better security compared to Cloudflare's predefined configurations. Customers do not have options to modify any configuration parameters in Cloudflare, whereas other competitor solutions, such as F5 Distributed Cloud, allow customers to tune configurations according to their requirements. Cloudflare could improve in this area. Additionally, regarding visibility, Cloudflare has static visibility, but they could adopt dynamic graph features for their customers.

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Dmytro Okhrushchak

CTO at UkrNet

Customer interface and support have impressed while artificial intelligence features drive confidence

Arbor DDoS has some difficult pricing rules. For many different small features, we have to pay additional fees for every small feature. If we compare it, it is slightly high and not very affordable. If I compare it to automobiles, when you buy Volkswagen and then consider Skoda, for the cheapest way, you would buy Skoda. But if you want similar features to Volkswagen, you have to pay a little bit more than for Volkswagen. As I mentioned, a good way would be to buy some package of features at small prices. That is one of my recommendations for the company. I would like to see a roadmap for one or two years, and it is tough to predict what will happen in that timeframe without a clearer description.

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Justin Thomas

Manager Strategic Planning at Endurance International Group

Identifies a request that comes up multiple times, block holds that particular IP, and lets the genuine traffic pass through

Genuine traffic coming in is still getting better. While I understand that it's some sort of algorithm that is written in this scale, that algorithm can be a little bit better because sometimes while we are doing DDoS mitigation, genuine traffic does get blocked. While it is one of the greatest features it can still be improved. I would like to see a dashboard that shows you the data that is transferred from which end. It's where people start looking at abuse management. People keep questioning when the mitigation is on what service it is and how many GBs are passing through. An end user dashboard that will help you identify all of these questions and that can be visible in your entire organization is something that would make sense.

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Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"The aggressive caching and DDOS mitigation are the most valuable features offered by Cloudflare."

"There are key things that are used for our enterprise customers, such as Lambda and DNS."

"The most valuable features of the solution are performance and security."

"It is a stable solution. I rate the stability a ten out of ten...I rate the scalability a ten out of ten."

"Easier http to https redirect using page rules"

"This solution has improved the security of our organization."

"The most valuable feature of the solution is external DNS. It is also very secure. They have their own main server and once you configure it, the product takes care of everything. There are no issues in resolving IPs and low latency is also present."

"Cloudflare is easier to manage than the solutions provided by these vendors, and the user experience is much more straightforward and appeals to a lot of developers."

More Cloudflare pros

"The auto-mitigation, that signaling feature, where it automatically raises an alarm that a line is under attack, is important. The upstream service provider will then do something to reduce the load on our internet lines. The fact that it's automated means I don't have to sit and always be looking at threats coming through. It does it almost automatically, without any intervention by me."

"The solution is really stable and is the most stable device in our topology."

"They have done a considerable amount of development in the last few years when it comes to features."

"There were huge attacks in October, around 62 attacks at 30 gigabits per second, at one of our banks. We used Arbor DDoS to mitigate these attacks, and it performed great."

"Go for it."

"The most valuable features include the traffic categorization and control of the traffic. The filtering of the traffic is very precise. When you want to stop some traffic, you precisely stop that traffic."

"The quality of the technical support provided by Arbor DDoS is premium."

"Reporting is quite good. There are several pages of reporting on DDoS attacks, and you can find all the details that you need."

More Arbor DDoS pros

"Scalability is awesome, and they have grown two folds or three folds since we started using them, with no concerns even as we protect close to 60,000 hosted sites for business and e-commerce customers."

"In the DDoS it's difficult to validate what is a genuine request from an end user. We've started being able to do that with the logistics that they have set up. With the protection that they have provided, they are able to identify what is valid and what is not valid. We see that a person who is getting DDoS Neustar service is able to block that particular user. However, while they are doing that it doesn't affect other customers on the server."

Cons

"It would be beneficial for us if Cloudflare could offer a scrubbing solution. This would involve taking a snapshot of my website and keeping it live during a DDoS attack, ensuring uninterrupted service for our users. DDoS attacks are typically short in duration, and having Cloudflare maintain the site's availability from its secure network would enhance the overall user experience. I would appreciate it if Cloudflare could consider implementing this feature. Many organizations already utilize similar capabilities in their CDN platforms, where a static snapshot of the web page is displayed during DDoS attacks. In terms of features, Cloudflare needs to enhance its resilience and stay more focused on adopting new technologies. For instance, solutions like F5 XC Box, Access Solution, and Distributed Cloud Solution have impressive features, and Cloudflare should strive to match and exceed those capabilities. There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features. Cloudflare should prioritize enhancements in areas such as behavioral DDoS and protection against SQL injection attacks, considering the prevalent trend of public exposure to the internet for business reasons. Overall, Cloudflare needs to invest more in advancing its feature set."

"Regarding uptime, we have faced a couple of incidents due to Cloudflare in recent years, so I cannot say we receive 100% uptime for our region."

"The timing aspect can lead to it being considered overpriced. This is a particular concern we have with Cloudflare, as they may struggle with accurately detecting the client."

"In the last two years, there has been a certain amount of downtime when using the VDM."

"The solution could work at being less expensive. It costs a lot to use it."

"We're facing challenges due to an upgrade in the machine learning model. The problem arises from some users abusing the APIs, resulting in an influx of suspicious traffic. Cloudflare's learning model mistakenly identifies this traffic as human. Consequently, it assigns it a higher trust score, akin to legitimate human traffic, causing complications in our architecture. Previously, such traffic would have been categorized as suspicious, enabling us to apply appropriate blocking rules. However, we encounter difficulties distinguishing between genuine and suspicious traffic with the new categorization. Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor."

"The product needs to improve its automation."

"The installation was complex until I learned what I had to learn."

More Cloudflare cons

"An issue which needs to be addressed concerns information I received of attacks on the radar and Arbor, allegedly, not taking any action."

"On the main page there are alerts that we are unable to clear, even though the issue has been resolved."

"In the default filter mode, there could be an impact on a customer’s link."

"This is a disadvantage of Arbor DDoS, as it operates merely as a flow collector, generating alerts only after a violation occurs."

"With Arbor DDoS, its integration issues with other technologies or other vendors' technologies is an area of concern that could be improved."

"Because we had some routers that were somewhat old, they were not integrated with Arbor. They did not support the NetFlow version that Arbor was running. That was a challenge. We had to upgrade the routers. Some backward-compatibility would be helpful."

"An improvement would be to provide information on how pricing is done on different customer levels (e.g. is it done per gig or bandwidth?)."

"There is always room for improvement for any product or service. If we can bring in more agility when deploying services, that is definitely a scope which we can work towards. Nowadays, everything is being offered as a service model. It is not that we have to deploy the physical hardware, many things move up to the cloud, or even can be delivered in the VNS form in the customer's environment as well. So, in that space, if we can add more features to make it more seamless for customers to use and make it available through some marketplace, not only at the hyperscalers, but also for any on-prem deployment, that definitely would be a big plus."

More Arbor DDoS cons

"Genuine traffic coming in is still getting better because sometimes while we are doing DDoS mitigation, genuine traffic does get blocked."

"I would like to see a dashboard that shows you the data that is transferred from which end. It's where people start looking at abuse management. People keep questioning when the mitigation is on what service it is and how many GBs are passing through. An end user dashboard that will help you identify all of these questions and that can be visible in your entire organization is something that would make sense."

Pricing and Cost Advice

"The cost primarily depends on the size of the organization."

"The pricing depends on the usage, but the cheapest would be around 5,000 USD a month."

"The price of the solution is expensive."

"The solution is expensive when compared to other products but offers unlimited bandwidth."

"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their solution."

"The price is reasonable."

"There are no additional costs beyond the standard licensing fees."

"The product's pricing is minimal compared to other products."

More Cloudflare pricing and cost advice

"The solution is a bit costly if you're a small organization, but I think it's worth the price that they are charging."

"Because the solutions from competitors are very different, it's not easy to compare. However, the licensing from Arbor is clear and understandable and the pricing is reasonable when looking at the market, in general."

"I don't deal with the pricing, but it seems that you need to get basic support in order to upgrade the software and implement some patches."

"I believe that the price of Arbor DDoS falls under the bracket of medium to high price."

"The price of Arbor DDoS depends on many parameters. It depends on the physical capacity of the environment, and it is not a straight-line price. It's fairly competitive in the market on the price."

"You need to find a way to get a good offering from Arbor by negotiating a price. That is the challenge."

"Regarding pricing, I would rate it as average. Arbor DDoS offers good value for money with our DDoS filter device. For higher protection needs, Arbor’s CloudMeter’s DDoS mitigation or hardware devices might be more expensive, but customers who need them are usually prepared for the cost and the additional resources required."

"The price of this solution is a little high in the African market, it should be lower."

More Arbor DDoS pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

10%

Comms Service Provider

10%

Computer Software Company

Manufacturing Company

Financial Services Firm

15%

Comms Service Provider

14%

Computer Software Company

Manufacturing Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	46
Midsize Enterprise	11
Large Enterprise	26

By reviewers
Company Size	Count
Small Business	26
Midsize Enterprise	14
Large Enterprise	29

No data available

Questions from the Community

Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

Cloudflare. We are moving from Akamai prolexic to Cloudflare. Cloudflare anycast network outperforms Akamai static GR...

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Which would you choose - Cloudflare DNS or Quad9?

Cloudflare DNS is a very fast, very reliable public DNS resolver. It is an enterprise-grade authoritative DNS service...

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What is your experience regarding pricing and costs for Cloudflare DNS?

The pricing, setup cost, and licensing for Cloudflare are a bit on the higher side overall.

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Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

I would say if it’s an ISP that will build a scrubbing center, Netscout/Arbor is a good solution. In all other soluti...

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Which is the best DDoS protection solution for a big ISP for monitoring and mitigating?

Arbor would be the best bid, apart from Arbor, Palo Alto and Fortinet have good solutions. As this is an ISP, I would...

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What is your experience regarding pricing and costs for Arbor DDoS?

The prices for Arbor DDoS are expensive. The licensing is subscription-based. From our sales department, they discuss...

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Product Reports

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Cloudflare

June 2026

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Arbor DDoS

June 2026

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Distributed Denial-of-Service (DDoS) Protection

May 2026

Download Neustar UltraDDoS [EOL] product report

Also Known As

Cloudflare DNS

Arbor Networks SP, Arbor Networks TMS, Arbor Cloud for ENT

Neustar UltraDDoS, UltraDDoS

Overview

Cloudflare enhances web performance and security with features like CDN caching and DDoS mitigation while providing easy DNS management and intuitive setup through its user-friendly dashboard.

Cloudflare is recognized for its comprehensive web security and performance solutions. Speed improvements are achieved through caching mechanisms and DDoS protection, combining ease of DNS management with flexible page rules. The robust analytics and threat insight tools provide valuable data, assisted by a user-friendly dashboard allowing quick setup and configuration. An API offers dynamic DNS settings ensuring low latency and high performance across the globe.

What are Cloudflare's key features?

CDN Caching: Enhances website speed through content delivery network caching.
Web Application Firewall: Protects websites from online threats.
DDoS Mitigation: Shields against distributed denial-of-service attacks.
DNS Management: Offers easy-to-use and flexible domain management.
SSL Certificates: Ensures secure connections between users and servers.
Analytics: Provides insights with robust analytics tools.

What benefits and ROI should users evaluate?

Enhanced Security: Strengthening web security with DDoS and firewall protection.
Speed Improvement: Faster content delivery with CDN caching.
Operational Simplicity: Simplifies website optimization through a user-friendly interface.
Scalable Solutions: Scales with global reach, lowering latency for improved performance.
Cost Efficiency: Offers layers of valuable functionality with pricing options.

Cloudflare finds utility across industries for DNS management and defense mechanisms. Its content delivery network assures fast content distribution and fortified security. Businesses integrate features like web application firewalls, load balancing, end-to-end SSL, and zero trust to protect websites from cyber threats while ensuring resilience and reliable performance.

Cloudflare

Arbor DDoS offers a comprehensive defense system against DDoS attacks, integrating a user-friendly GUI and advanced threat mitigation technologies for enhanced network protection.

Arbor DDoS is recognized for its ability to manage high-volume DDoS attacks efficiently, providing extensive protection through real-time traffic analysis and automated threat detection. It utilizes advanced techniques such as blackhole and BGP Flowspec for effective threat management. Arbor's cloud signaling allows users to handle and mitigate volumetric attacks while maintaining service availability. Though it provides robust security features, users note potential improvements in auto-mitigation, scalability, and AI integration. Challenges like an outdated graphical interface, hardware stability, and false positives need addressing to further enhance its usability and integration with third-party systems.

What are the key features of Arbor DDoS?

User-Friendly GUI: Provides an intuitive interface for ease of use.
Effective Mitigation: Combats high-volume DDoS attacks effectively.
Predefined Filters: Simplifies threat management with pre-configured settings.
Real-Time Traffic Analysis: Offers insights into traffic patterns and potential threats.
Automated Threat Detection: Identifies and mitigates threats without manual intervention.
Able to Handle High-Volume Attacks: Ensures extensive protection even under large-scale attacks.
Packet Capture and Integration: Facilitates comprehensive security analysis.
Cloud Signaling: Enhances attack traffic management through hybrid deployments.

What benefits should users expect from Arbor DDoS?

Enhanced Protection: Safeguards networks from diverse DDoS threats.
Improved Service Availability: Maintains business operations without disruptions.
Timely Reporting: Delivers detailed attack reports for proactive prevention.
AI Capabilities: Leverages AI for smarter threat mitigation strategies.
Comprehensive Security: Combines on-premise and cloud deployments for optimal defense.

Internet service providers and telecom companies commonly adopt Arbor DDoS to protect their networks and infrastructure from DDoS attacks. It is also implemented in financial and government sectors to ensure web application security and maintain high availability. Arbor DDoS supports a hybrid approach, utilizing both on-premise and cloud solutions to manage traffic efficiently and sustain service quality during attacks.

NETSCOUT

Neustar UltraDDoS [EOL] is an enterprise-level DDoS protection service designed to safeguard online operations by mitigating attack risks. It provides comprehensive security features that ensure continuous online availability.

Neustar UltraDDoS [EOL] has been valued for its robust ability to protect against distributed denial-of-service attacks. It offers scalability and effective traffic analysis to detect potential threats swiftly. The system can be enhanced by addressing needs for customization and seamless integration with existing IT infrastructure. Despite being end-of-life, it set a standard for DDoS protection through proactive monitoring and advanced threat detection technologies.

What are the most important features of Neustar UltraDDoS [EOL]?

Advanced Traffic Analysis: Identifies and mitigates threats in real-time.
Scalability: Protects networks of all sizes from large-scale attacks.
Proactive Monitoring: Continuously scans for vulnerabilities and potential threats.

Which benefits and ROI should users look for in reviews?

Reduced Downtime: Ensures constant access to services during attacks.
Cost Efficiency: Limits financial losses by maintaining operations.
Enhanced Security: Provides peace of mind with comprehensive threat management.

In industries like finance and e-commerce, Neustar UltraDDoS [EOL] was crucial for maintaining transaction integrity and service reliability. It provided peace of mind to businesses by ensuring network stability, allowing them to focus on growth without disruption concerns.

TransUnion

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.

Xtel Communications

Choxi

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

May 2026

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