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NGINX App Protect vs NetScaler comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Aug 25, 2025

Review summaries and opinions

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

ROI

Sentiment score
6.5
Cloudflare enhanced speed, security, and data protection, providing significant ROI and improved operations and client satisfaction for businesses.
Sentiment score
8.1
NetScaler ensures data security and operational efficiency, providing significant cost savings and stability for medium enterprises.
Sentiment score
6.9
Organizations saw positive ROI with NGINX App Protect during COVID-19, improving security and integration, anticipating future benefits.
WordPress security can be tricky, and that's where Cloudflare can be absolutely helpful for small businesses.
For the small project I was working on, using the basic tier provided a huge improvement at zero cost.
 

Customer Service

Sentiment score
7.0
Cloudflare's customer service is efficient for paying users, but responses can vary in speed and effectiveness for others.
Sentiment score
6.1
Citrix support is responsive and knowledgeable, though some users report delays and prefer direct access to experienced engineers.
Sentiment score
6.3
NGINX App Protect support is praised for promptness and helpfulness but inconsistencies and costs affect user satisfaction.
This would help us address issues promptly, especially during unforeseen events like DDoS attacks.
Cloudflare does not offer hands-on technical support to fix customer problems but rather a self-service model.
The key factor is the language in which the support is offered, which, in this case, is in Thai.
They were quick and efficient when we had issues.
 

Scalability Issues

Sentiment score
8.1
Cloudflare is praised for seamless scalability, managing enterprise-level traffic efficiently and earning high customer satisfaction during peak events.
Sentiment score
7.8
NetScaler is praised for high scalability and flexibility, despite some challenges with licensing complexity and multi-tenancy support.
Sentiment score
6.5
NGINX App Protect is scalable with diverse options but faces deployment, traffic, and configuration centralization challenges noted by users.
It is a SaaS tool, but the fact that they have workloads deployed across the world proves that it is a highly scalable tool.
The tool offers very good performance, even during high-traffic periods.
I rate the solution’s scalability an eight out of ten.
 

Stability Issues

Sentiment score
7.6
Cloudflare is widely regarded as stable and reliable, with improvements noted in uptime and performance on higher plans.
Sentiment score
7.6
NetScaler is highly rated for stability and performance, with some recommending regular maintenance for optimal reliability.
Sentiment score
8.4
NGINX App Protect is praised for stability and integration, outperforming competitors, though minor improvements in HTML5 are needed.
For DDoS protection, I would not recommend Cloudflare.
I rate the solution’s stability an eight out of ten.
The service is very stable with no impacts during high-traffic periods.
It is a quality solution, and I would rate its stability as eight out of ten.
 

Room For Improvement

Cloudflare requires improvements in analytics, CDN speed, API, technical support, DNS management, documentation, pricing clarity, and international and reseller support.
NetScaler needs improvements in usability, stability, security integration, and support while enhancing documentation, pricing transparency, and deployment processes.
NGINX App Protect requires improved flexibility, UI, API, automation, network support, pricing, integration, and feature enhancements like security and documentation.
There's a need for improvement in areas like AI-based DDoS attacks and Layer 7 WAF features.
Despite these challenges, overall, Cloudflare remains the preferred solution compared to Azure, AWS CloudFront, and Google Cloud Armor.
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.
There was more information from F5 regarding hardware requirements and specifications to deploy the service.
 

Setup Cost

Cloudflare offers cost-effective, scalable plans with no setup fees, starting from free for small businesses to enterprise-level solutions.
NetScaler pricing is high but offers strong features; cost-saving options include alternatives or negotiating multi-year subscriptions.
NGINX App Protect costs $3,000-$400,000 annually, considered expensive but competitive, with no hidden fees and strategic cost management possible.
That's where Cloudflare shines for smaller businesses – it's ten times cheaper than Akamai.
I find it to be cheap.
I think they should consider reevaluating the pricing for support, as it can be quite high.
 

Valuable Features

Cloudflare enhances security, speed, and SEO with easy-to-use features like CDN, SSL, DDoS protection, and centralized management.
NetScaler provides flexible deployment, security enhancements, and integration with Citrix for efficient application delivery and robust traffic management.
NGINX App Protect provides comprehensive security features including automation, containerization, and flexible API connectivity for robust application protection.
The most valuable features of the solution are performance and security.
Techniques like minification and image compression reduce the size of assets, leading to better performance and faster user load times.
The solution has been able to compare it to the market, and I think the product has taken great strides in automating quite a bit of things, and they use a lot of AI.
The most valuable feature is the ability to operate in a DevOps environment and to be configured through API and pipeline by the developers themselves.
Detecting bots and blocking IPs have proven effective for securing applications.
 

Categories and Ranking

Cloudflare
Sponsored
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
76
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (13th)
NetScaler
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
107
Ranking in other categories
Application Delivery Controllers (ADC) (1st), Network Management Applications (5th), Web Application Firewall (WAF) (11th)
NGINX App Protect
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
24
Ranking in other categories
Web Application Firewall (WAF) (16th), Container Security (23rd), API Security (6th)
 

Featured Reviews

Carlos Alam Hernandez Baruch - PeerSpot reviewer
Fast and secure deployments simplify operations for government and fintech clients
It is a fast and secure DNS. It is very easy to deploy, and my customers are happy with this tool. Additionally, the CDN performance in Mexico is excellent, providing fast service and tools. It offers reliability during high-traffic periods, ensuring no impact on the environment. It helps my clients avoid using on-premise boxes, simplifying operations as they only use the prices on Cloudflare.
DEMİRHAN ÇAVUŞOĞLU - PeerSpot reviewer
A tool for centralized management including inventory and sales tracking
Citrix ADM has the ability to implement policies to tighten security. For instance, you can restrict access to your network from outsiders or lack necessary security measures such as antivirus programs. Additionally, there's the Delivery Controller, which allows for comprehensive monitoring and management tasks such as remote restarts, maintenance, and registration. Another essential component is the Director, which provides detailed insights into sessions, including identifying session failures, connection issues, user lockouts, etc. It presents a list of problems to address, enabling you to click on them and resolve them efficiently.
Saurav Kumar - PeerSpot reviewer
Offers protection to users from external threats
NGINX App Protect secures our company's application, and it has helped me a lot, considering that we have critical infrastructure in India where we see how lots of attacks come onto our organization's servers. The tool offers protection against multiple threats present in India's IT ecosystem. The tool helps our company to make our payments secure, meaning it has the ability to provide a secure payment environment in India. Speaking about the improvements in our company's application performance since implementing NGINX App Protect, the gRPC support for the solution is very low. My company is not getting any proper documentation on how to deploy gRPC over NGINX App Protect. I recommend the product to those who plan to use it. People can use the product as their company's base server, WAF, or for its proxy manager, depending on the business requirements. My company follows PCI DSS compliance because we operate in a payment-related industry. Right now, my company follows all the standards, so we comply with all the requirements and policies. I rate the tool an eight out of ten.
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Comms Service Provider
11%
Financial Services Firm
10%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
Computer Software Company
15%
Financial Services Firm
15%
Comms Service Provider
8%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise5
Large Enterprise11
 

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...
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...
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.
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...
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...
What needs improvement with Citrix ADC?
Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...
What is your experience regarding pricing and costs for NGINX App Protect?
I don't know the pricing yet because in my other project, I was not part of the buying side and I was just starting t...
What needs improvement with NGINX App Protect?
It would be better if it were easier to implement and if there was more information from F5 regarding hardware requir...
 

Also Known As

Cloudflare DNS
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
NGINX WAF, NGINX Web Application Firewall
 

Overview

 

Sample Customers

Trusted by over 9,000,000 Internet Applications and APIs, including Nasdaq, Zendesk, Crunchbase, Steve Madden, OkCupid, Cisco, Quizlet, Discord and more.
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
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Find out what your peers are saying about NGINX App Protect vs. NetScaler and other solutions. Updated: September 2025.
867,676 professionals have used our research since 2012.