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: March 2026).

Buyer's Guide

Distributed Denial-of-Service (DDoS) Protection

March 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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Sanjin Zuhric

Team Lead Network Engineer at Artco Group d.o.o Sarajevo

Reliable protection ensures robust network defense and simplifies DDoS management

I am not sure if we plan to use additional features because we have many vendors and platforms that we support. We use the main function and that is it. The prices for Arbor DDoS are expensive. The licensing is subscription-based. From our sales department, they discuss that prices are very high. A potential improvement could be establishing a contract with Cisco to sell via their channel. This could be beneficial because we work extensively with Cisco. If you are a Cisco partner, you can sell Arbor DDoS. That would be good for customers that are Cisco-based because many customers in Bosnia are Cisco-based customers. BH Telecom, our main customer, sells Arbor DDoS to other customers for protection. They buy Arbor and sell the product services to others via Internet links. They sell add-on DDoS protection via Arbor DDoS. In Bosnia and Herzegovina, Arbor DDoS is not present in many customers. Some customers try to sell it, but they sell other vendors such as F5. Arbor DDoS is mainly seen in telecom operators but not much in other customers.

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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

"In my opinion, CloudFlare is one of the best CDN networks I have ever used."

"The attacker won't have details since my public IP is anonymous. It offers us good privacy."

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

"Cloudflare DNS is widely used, and it's good for websites. If we use Cloudflare DNS and update one record, it updates in their office instantly."

"Cloudflare consolidates various capabilities into one product, streamlining processes."

"The technical support is good."

"I get a lot of value from Cloudflare's API because it enables you to build a separate environment inside the solution. You can create a domain for performing test requests before you move to the production environment and connect various domains."

"The most valuable feature is its usability."

More Cloudflare pros

"Its scalability is big. It is for large deployments of big organizations and service providers."

"The most valuable feature is mitigation, which can blackhole the IP."

"When there was an attack, the attack was contained only on the IPs under attack, the rest of the network was not impacted, and that is the most important part."

"It's an excellent product DDoS protection against attacks."

"I am convinced with the kind of scalability Arbor brings in; the Cloud subscription, which is available as one of its features, makes the scalability limitless."

"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."

"Without Arbor, we'd probably be around 75 to 80 percent uptime."

"The stateless device format means that the box is very strong for preventing DDoS attacks."

More Arbor DDoS pros

"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."

"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."

Cons

"Latencies are always a problem."

"Although I think it's quite good, it doesn't provide me with all the features I would expect to have if I were using Imperva."

"It should confirm audit findings of the assigned area with auditees to ensure that the audit conclusions are based on an accurate understanding of the issues."

"Perhaps I would ask that they improve the Free plan and allow us to use it with any TLD (certain ones are not allowed)."

"Cloudflare could be improved by introducing a mid-tier pricing option."

"I think they have failed with their technical support."

"It should be easier to collect the logs with companies like Sumo. However, based on my discussions with the salespeople, I understand that's how they make their money. With the enterprise product, they want people doing those kinds of enterprise features to do the logging. They want them to pay a lot of money, and that's where I have an issue with them. That should be a default. You should be able to get the log no matter what. The logging should be universal."

More Cloudflare cons

"They also have limited sizes of the boxes. Different sizes are needed because some customers are very small while others are very big, such as ISPs, so this categorization should be available."

"The prices for Arbor DDoS are expensive. The licensing is subscription-based."

"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."

"Real-case scenarios that have taken too long to resolve or were escalated can be directly converted into articles."

"Sometimes it blocks legitimate traffic. If a legitimate user is trying to access the server continuously, the product suspects that this is a DoS traffic file. That is a case where it needs to improve. It needs machine-learning."

"When it comes to some false positives, we need to tweak the system from time to time."

"If we want to see live traffic, we can see do so. But once an attack that lasts for five minutes is done, the data is no longer there. It would be an improvement if we could see recent traffic in the dashboard. We can check and download live traffic, but a past attack, with all the details, such as why it happened and how to mitigate and prevent such future attacks, would be helpful to see."

"Arbor's SSL decryption is confusing and needs external cards to be installed in the devices."

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

"So far I use free tier and happy with it. You can subscribe to business package if needed."

"We are using the free tier of the solution."

"I think the pricing is competitive. I think as far as licensing is concerned it's pretty straightforward because it's based on domain. It's just that sometimes domains could be tricky with some customers."

"When you compare Cloudflare DNS to other solutions, such as Akamai, the price is reasonable."

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

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

"I believe their performance has improved, but I'd like to refrain from discussing the pricing aspect related to the cloud. The pricing, in my opinion, could be simplified, and I think they should consider reevaluating the pricing for support, as it can be quite high. At times, this cost can make it challenging to choose CARFAGuard or opt for the support."

"We are using the free version."

More Cloudflare pricing and cost advice

"As far as I know, they are the best in this sector, in DDoS protection. They know it, I know, because their service prices are too high. They provide cloud DDoS protection for ISPs, but that is also too expensive."

"The licensing of a complete Arbor solution, including fire-walling and unified site management, can get expensive."

"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."

"I'm a technical guy. But I know it's expensive compared to its competitors. After you have the on-premise solution, for your solution to be effective you have to subscribe to an "upper level," so there's another cost. There is also a subscription to cloud services, which is another cost."

"We do not use the Arbor Cloud DDoS solution because it is too costly."

"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."

"Pricing is slightly on the higher side."

"The solution's pricing is based on a licensing model that is expensive when compared to other tools."

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

14%

Comms Service Provider

13%

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	8
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 do you like most about Cloudflare?

Cloudflare offers CDN and DDoS protection. We have the front end, API, and database in how you structure applications.

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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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IBM NS1 Connect vs Cloudflare

Compared 1% of the time

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Compared 5% of the time

A10 Thunder TPS vs Arbor DDoS

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No data available

Product Reports

Buyer's Guide

Cloudflare

March 2026

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Arbor DDoS

March 2026

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Distributed Denial-of-Service (DDoS) Protection

March 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

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Distributed Denial-of-Service (DDoS) Protection

March 2026

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