F5 Advanced WAF vs NetScaler comparison

F5 and NetScaler are both solutions in the Web Application Firewall (WAF) category. F5 is ranked #2 with an average rating of 8.6, while NetScaler is ranked #12 with an average rating of 8.3. Additionally, 98% of F5 users are willing to recommend the solution, compared to 91% of NetScaler users who would recommend it.

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Executive SummaryUpdated on Jan 1, 2025

NetScaler and F5 Advanced WAF are competitors in the application delivery and security market. F5 Advanced WAF appears to have the upper hand in threat detection capabilities and comprehensive security features, including DDoS protection.

Features: NetScaler provides flexible deployment with optimal integration into Citrix products. Its key features include TriScale architecture, SSL offloading, and multitenancy, making it effective for load balancing and application delivery. F5 Advanced WAF boasts advanced security features such as API protection, behavior analysis, and automated policy suggestions, ensuring superior threat detection and mitigation.

Room for Improvement: NetScaler needs improvements in asymmetric web content optimization, scripting support, and OCSP stapling. Its cumbersome configuration is less flexible compared to F5's iRules. F5 Advanced WAF could improve its user interface, along with pricing and reporting capabilities, while its licensing model remains complex.

Ease of Deployment and Customer Service: NetScaler is effective for on-premises deployments with decent technical support, although response times can be slow. F5 Advanced WAF provides similar deployment options across various cloud types but experiences mixed customer service feedback, with some noting delays in issue resolution.

Pricing and ROI: NetScaler, though expensive, offers good ROI, especially when integrated with Citrix environments. F5 Advanced WAF is costly, potentially prohibitive for small businesses, but its excellent threat protection capabilities justify the price for those prioritizing security.

To learn more, read our detailed F5 Advanced WAF vs. NetScaler Report (Updated: April 2025).

Buyer's Guide

F5 Advanced WAF vs. NetScaler

April 2025

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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

Spencer Malmad

Owner at Tech Exchange

It's easy to set up because you point the DNS to it, and it's working in under 15 minutes

Cloudflare is highly scalable. Cloudflare is a system with a web portal that the end users like me see. It's a console where we can adjust the DNS, caching, and security features all in that console. Cloudflare owns thousands of servers across the world that cache the data. It's a powerful solution. When clients sign up for Cloudflare, they're getting this monster content delivery network, security, and a web application firewall in one. It's all rolled into one, and it's massive. Unless you have your website hosted on a massive hosting provider, there's no way that you can deliver the amount of data that Cloudflare can provide to the end users. If you have static content, there's no way that you can ever match what Cloudflare can do. Obviously, there are competitors to Cloudflare that do the same, but I'm saying other types of solutions. Let's say you go with F5. Great, that's on-prem. That's in your colo. You can't deliver as much data to the internet as you can with a CDN. You don't have to spend $20,000 on a net scaler, F5, or whatever Cisco's selling now. You don't have to buy that. You pay them $50 a month or $150 a month. It's totally worth it because even in five years, you'll never get the performance value, not just the actual ROI. You have to consider how much throughput you can get with Cloudflare.

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Richard Polyak

Sr. Architect at NBC Universal

Easy event identification, highly stable, and customizable

Generally, F5 Advanced WAF initial setup is straightforward. However, our environment was more complex and it took us a little more time to customize the solution to where we needed it to be. Additionally, the customization didn't rectify everything. We had to do customization to a certain event to prevent attacks that it wasn't catching, but that might not necessarily be the solutions' fault. It could be more of our setup than the solution's fault and not being able to run the latest version or the newer version could be more of a limitation on our ability to put it in the right place. The whole implementation to have the solution run at the level we wanted it to take approximately five months. Our company's environment is one that we can't put a canned solution in front of. Our environment, cannot have a canned solution that might fit everybody else because of how customized this environment is. It does need a lot of tuning to meet our environment's requirements. I rate the initial setup of F5 Advanced WAF a three out of five.

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VivekKumar10

Co-Founder at Virajo

Good stability and offers various valuable features like WAF

Pricing is one area for improvement. It's on the higher side because NetScaler is a premium product used for over 70% of internet traffic worldwide. However, price is not the only concern. Manageability and adaptability can also be challenging for end customers, who may require the assistance of experts like us to deploy and manage the product effectively. Although this is good for us as partners, it can limit the product's appeal to customers who prioritize ease of use. Moreover, having some GUI-based tools for log management and troubleshooting would be helpful and make it easier for customers to manage and troubleshoot their databases. For the future release of Citrix NetScaler, I would like to see better pricing, as well as improved manageability and log management features. Another thing is if a problem occurs, we have to rely on the central support system. We need to collect the log and send it back to support for analysis, and then Citrix support will provide the solution. It would be much easier to troubleshoot if something is handy, such as a web portal or a common platform where customers can upload logs and resolve some of the issues automatically.

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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

"I like Cloudflare's application gateway and DDoS protection."

"What I like best about Cloudflare is that my company can use it to trace and manage applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare also sends you a link to check your equipment and deployment and track it through peering, so it's a valuable tool."

"The technical support is good."

"DDoS attacks target unprotected machines. Cloudflare detects and stops these attacks using internal systems. It identifies incoming DDoS attacks, issuing challenges or blocking them immediately."

"The most valuable feature of Cloudflare DNS is its global reach and it is always evolving."

"Cloudflare has many features."

"From what I've seen so far, there are no negatives to report as of yet"

"The web application firewall brought us good security and a view of the accesses/blocks of the entire domain and subdomain that were accessed both by region (country) and IPs."

More Cloudflare pros

"F5 Advanced WAF is a comprehensive community platform with a strong commitment, making it valuable for businesses."

"The most valuable features of this solution are the WAF protection, Data Safe, and the seven-layer DDoS."

"The most valuable feature of F5 Advanced WAF is its ability to have a pool of resources that can distribute your traffic, and that is a plus for me. My company tried to look into a competitor, Imperva, but it was lacking that capability, so F5 Advanced WAF outperforms Imperva."

"Very easy to implement and works well."

"Despite a few issues, F5 Advanced WAF is performing well for me."

"The most valuable features of F5 Advanced WAF are the overall capabilities, there is not a comparable solution on the market."

"This solution is an enterprise-class firewall that provides both load-balancing and security."

"The product has valuable features for load balancing, monitoring tools, and HPXpress services."

More F5 Advanced WAF pros

"The most valuable features are the VDA Delivery, Gateway Fort, and the load balancing."

"Manageability and visibility are good."

"Citrix Web App API Protection allows you to enable a blocking mode"

"The best feature of Citrix is its track record of stability in its features."

"The load balancing and VPN features are most valuable. AAA authentication is also valuable."

"The solution's technical support is good."

"For NetScaler, our major use cases are database load balancing, PowerVPN VPN access gateway, WAF (Web Application Firewall), and content switching."

"The load balancing feature and the fact that you can do context switching in the WAF are the most valuable. We majorly use it for load balancing, but we also use it for context switching in the WAF. It is also robust and very easy to work with and manage."

More NetScaler pros

Cons

"There are some issues with the CDN services."

"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."

"The analytics, basically the dashboard, doesn't have much to it."

"For the free and Pro plans, Cloudflare could use a simple bot to provide information to users. This would improve support, especially for less advanced users who utilize the free components."

"An integrated SSO feature would be useful for Cloudflare DNS."

"The product support needs to be accessible from more places, a wider area of coverage."

"I think the APIs are a little bit hard for us to work with. The APIs could be more open so that we could integrate better with our SolarWinds or our monitoring solution."

"The tool needs to improve caching of servers. The product needs to include PFX certificate as well."

More Cloudflare cons

"There are opportunities for improvement in updating the user interface to a more modern look."

"F5 Advanced needs to improve its bot protection. The solution needs to have machine learning to learn the behavior of the customer to recognize the human versus the bot. This is a difficult feature to explain to our customers. I would like documentation about the bot feature to make it easier for the customer to understand."

"The BNS module needs improvement."

"I would say their graphical interface, the GUI. I don't like the GUI as much as before."

"I would like to see a better interface and better documentation compatibility with other products. It's more complicated with OWASP."

"Support is a little slow."

"F5 Advanced WAF could improve resource usage, it is CPU intensive. Additionally, adding automated remediation would be a benefit. For example, an easy button alerts us of the events that are occurring, and what we want to do at the time. An automated approach where somebody could be alerted very quickly. Instead of going and reconfiguring everything, an automated approach is what I'm looking at."

"The product could be more user-friendly for administrators."

More F5 Advanced WAF cons

"Too many bugs in the software and it's always difficult when you need to update."

"We are looking for some in-depth monitoring and analytics and more information that Citrix Director doesn't provide. ControlUp has insights that not only give you an overview but also allow you to do some drill-down troubleshooting for what's going on in your environment. We are looking for some more analytical and monitoring data to be able to monitor the environment better, not only from an application standpoint but also from the standpoint of the infrastructure to everything it sits on. They can provide more data to the administrators about what's going on within the application. They can provide data not only on the application side but also about what the application sits on. They're making strides with Citrix Analytics in regards to that."

"I will try to migrate all the tools to the cloud because there is more lab and more VPN scalability available in the cloud. It is not available on-premises."

"Integration with other third party providers and third party applications could be better because it can be a bit complex at present."

"Improvements are needed to address the issue of machines becoming unregistered, ensuring stability for end users. Troubleshooting with Citrix support can be challenging, so clearer diagnostics would be beneficial. As for global server load balancing, it works well on-premises, depending on user volume and service stability. Overall, it's satisfactory for us."

"There are certain features that are very useful and Citrix makes you pay a bit more for them."

"The solution is a bit more expensive than some of the available solutions in this region. One solution in particular that I noticed was cheaper was Kemp."

"Citrix ADC can be really complex. It isn't very simple like some other appliances that I've worked with. You need a lot of skill and experience to manage it. I'm not talking about a year or two. You need at least four years to understand it very well. It is not that easy to learn. They should make it a lot simpler for users to understand the management of it. They can also provide some additional training. The material they have on the site is not sufficient enough for you to understand how to manage it. Their training is expensive, and not everyone has the funds and experience for it. Citrix isn't very popular around these parts of the world. So, it can use some more marketing, sales, enlightenment, and advertisement. These could bring more market for them. Basically, there are just a few companies that really go for Citrix. Most of the companies go for VMware because they marketed themselves more than Citrix. There isn't much difference between Citrix and VMware. VMware is a little more robust than Citrix. Citrix has focused more on desktops rather than server virtualization, and that's the advantage VMware has over Citrix. Citrix also needs to educate and inform users about the infrastructure that is supported with a version. Currently, if the customers don't look at the datasheet, they might miss this important information."

More NetScaler cons

Pricing and Cost Advice

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

"We don't have any issues with the price."

"The tool is a premium product, so it is very expensive."

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

"The price is reasonable."

"It's a premium model. You can start at zero and work your way up to the enterprise model, which has a very high pricing level."

"For Cloudflare, I recommend it heavily for small businesses with revenue under a couple of million dollars. Onboarding is easy, and they even have a free plan. This makes it simple for businesses in the $100,000-$500,000 range to try it out and see its value, allowing them to scale up their infrastructure as needed."

"The solution has many features but there are ones that you need to pay for. Sometimes you have to find out which is available for free and which you have to pay for."

More Cloudflare pricing and cost advice

"Pricing for this solution is higher than average."

"The pricing for F5 Advanced WAF is comparable to a Rolls-Royce. Its price is a bit high when you compare it with other vendors. F5 Advanced WAF is a bit expensive. The customer was on a three-year plan and it was around $560,000."

"A yearly license for F5 Advanced WAF is expensive."

"F5 Advanced WAF pricing structure should be adjusted to meet the need of small to medium-sized companies."

"It is a little bit costly, but it has all the features that are required."

"The pricing is too high."

"There are various plans available for Fortinet FortiWeb Cloud WAF as a Service, including a trial version."

"F5 Advanced WAF's pricing is high."

More F5 Advanced WAF pricing and cost advice

"The client pays for the Citrix NetScaler license annually."

"The pricing for Citrix Web App and API Protection is unreasonable. I don't know the exact price, but I heard it's tens of thousands and it's a bit too much for the small country I live in."

"The solution is undoubtedly very good, but it is expensive."

"NetScaler does the same thing as an F5 and it's cheaper."

"The tool is cheap."

"Citrix NetScaler's pricing is slightly above average but not overly expensive. I would consider F5 BIG IP to be the most expensive, Citrix NetScaler to be the second most expensive, and then Kemp Load Balancer to be the third."

"Citrix NetScaler VPX is not the cheapest solution out there, but you get what you pay for."

"It is an enterprise solution. Thus, its costs are reasonable."

More NetScaler pricing and cost advice

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Top Industries

By visitors reading reviews

Educational Organization

19%

Computer Software Company

13%

Comms Service Provider

Financial Services Firm

15%

Computer Software Company

13%

Government

Manufacturing Company

Computer Software Company

15%

Educational Organization

14%

Financial Services Firm

11%

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

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...

See all answers

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...

See all answers

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.

See all answers

What do you like most about F5 Advanced WAF?

It's a fairly easy-to-use and user-friendly tool. My administrators and team also like its ability to customize the r...

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What is your experience regarding pricing and costs for F5 Advanced WAF?

Subscription models have competitive pricing, while perpetual licenses involve an upfront higher cost, leading to amb...

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What needs improvement with F5 Advanced WAF?

F5 Advanced WAF sells perpetual licenses as perpetual assets during sales without informing me that support ends afte...

See all answers

What do you like most about Citrix ADC?

The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic ente...

See all answers

What is your experience regarding pricing and costs for Citrix ADC?

After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more...

See all answers

What needs improvement with Citrix ADC?

Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...

See all answers

Comparisons

Quad9 vs Cloudflare

Compared 50% of the time

Akamai vs Cloudflare

Compared 4% of the time

Azure Front Door vs Cloudflare

Compared 4% of the time

Azure DNS vs Cloudflare

Compared 3% of the time

Amazon Route 53 vs Cloudflare

Compared 2% of the time

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Fortinet FortiWeb vs F5 Advanced WAF

Compared 23% of the time

AWS WAF vs F5 Advanced WAF

Compared 15% of the time

Microsoft Azure Application Gateway vs F5 Advanced WAF

Compared 12% of the time

Imperva Web Application Firewall vs F5 Advanced WAF

Compared 6% of the time

More F5 Advanced WAF Competitors

Microsoft Azure Application Gateway vs NetScaler

Compared 11% of the time

HAProxy vs NetScaler

Compared 11% of the time

Fortinet FortiADC vs NetScaler

Compared 9% of the time

F5 BIG-IP Local Traffic Manager (LTM) vs NetScaler

Compared 8% of the time

More NetScaler Competitors

Product Reports

Buyer's Guide

Cloudflare

April 2025

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Buyer's Guide

F5 Advanced WAF

April 2025

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Buyer's Guide

NetScaler

March 2025

Download NetScaler product report

Also Known As

Cloudflare DNS

No data available

Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall

Overview

Cloudflare is a highly-regarded Content Delivery Network (CDN) and a Distributed Denial-of-Service (DDoS) protection solution. The robust global connectivity cloud platform that is Cloudflare ensures users are able to connect to the Internet quickly, securely, and reliably. Cloudflare is one of the world's largest networks in the marketplace today. Using Cloudflare, businesses, educational entities, NGOs, vloggers, bloggers, and anyone else with an internet presence can experience more secure, faster websites and applications.

Currently, there are millions of Internet locations on Cloudflare, and the Cloudflare network
continues to grow every day by the thousands. The solution is able to fulfill the requests for
millions of websites seamlessly and serves on average 45 million HTTP requests per second.

Cloudflare has safe, secure data centers in close to 300 cities worldwide to ensure every
client request is filled as quickly as possible. It is Cloudflare’s edge network that makes this
possible by keeping content and other services as close to each client as possible, so the
information requests are always only seconds away.

Many organizations that work in democracy, civil society, human rights, or the arts are able to
access Cloudflare's highest levels of protection for free via Project Galileo. Additionally, official
election websites can be secured from hacking and fraud through Cloudflare’s Project
Athenian, also at no additional cost.

Cloudflare can also help organizations of all sizes develop a robust zero-trust strategy to
ensure the highest levels of productivity and profitability. Employees, stakeholders, and end users have a greater level of satisfaction and overall improved user experience, which can, in
turn, result in higher revenues and overall ROI. Zero-trust and BYOD (bring your own device)
access ensure end users and employees always have the best resources and technology
available to them at all times.

Cloudflare benefits

Cloudflare has many benefits. Some of its most valuable benefits include:

- Faster load times

- Robust DNS security

- Intuitive cloud Web Application Firewall (WAF)

- Free universal SSL

- Image enhancement

- Automatic browser caching

- Next-generation cloud load balancer

- Accelerated Mobile Pages (AMP)

- Rate limiting

- Minification

- Zero-trust capabilities

- Cost-effective

- Reduced carbon footprint

Reviews from real users

“Many websites require an SSL certificate because they sell stuff and want SSL. Cloudflare
comes with an SSL certificate built in. It's automatic. You sign yourself up for Cloudflare, and
an SSL certificate automatically protects your website. If you have a connection between your
website and your host, the server, Cloudflare, and the host, you don't necessarily need a
certificate.” Spencer M., Owner at Tech Exchange

“What I like best about Cloudflare is that my company can use it to trace and manage
applications and monitor traffic. The solution tells you if there's a spike in traffic. Cloudflare
also sends you a link to check your equipment and deployment and track it through peering,
so it's a valuable tool.” Daniel P., Network Engineer at Ufinet

“The most valuable feature of Cloudflare is the GUI. You are able to control the solution very
well through the interface. There is a lot of functionality that is embedded in the service.” PeerSpot user, Competence Center Manager at a tech services company

Cloudflare

F5 Advanced WAF is a web application security solution for financial and government sectors, e-commerce, and public-facing websites. It offers protection against various attacks, including botnets, web scraping, and foreign entities. The solution can be deployed on-premises or in the cloud and is often used with other security tools. Its most valuable features include DDoS and DNS attack protection, SSL uploading, anomaly detection, and the ability to input custom rules.

F5 Advanced WAF has helped organizations to expose more services to the public while providing an extra layer of protection, preventing revenue loss, and securing connectivity.

One platform for a consistent application delivery and security experience because nobody has time to learn multiple systems to manage ADC deployments. NetScaler is built with a single code base using a software-based architecture, so no matter which ADC form factor you choose — hardware, virtual machine, bare metal, or container — the behavior will be the same.

NetScaler

Sample Customers

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

MAXIMUS, Vivo, American Systems, Bangladesh Post Office, City Bank

ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk

Buyer's Guide

F5 Advanced WAF vs. NetScaler

April 2025

Free Report: F5 Advanced WAF vs. NetScaler

Find out what your peers are saying about F5 Advanced WAF vs. NetScaler and other solutions. Updated: April 2025.

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