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Fastly 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:
 

Categories and Ranking

Cloudflare
Sponsored
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
77
Ranking in other categories
CDN (1st), Distributed Denial-of-Service (DDoS) Protection (1st), Managed DNS (1st), Cloud Security Posture Management (CSPM) (12th)
Fastly
Average Rating
8.8
Reviews Sentiment
6.6
Number of Reviews
8
Ranking in other categories
CDN (8th), Web Application Firewall (WAF) (18th), Distributed Denial-of-Service (DDoS) Protection (11th)
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)
 

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.
Nick Wilsdon - PeerSpot reviewer
An easily scalable and stable product that provides exceptional support
The product should provide improved bot detection and management. The product should also provide support for code management. Everybody working in CDN is currently looking for ways to better manage code deployment with various authorization levels and synchronization with our lower environments. Matching up what's happening in CDN with what's happening on the origin regarding testing would always be useful.
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.

Quotes from Members

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

Pros

"The most valuable feature of Cloudflare is that it has a free version. They give us the free version with the anti-DDoS features and also the load balancing solution."
"The DDoS protection is the most valuable aspect of the solution."
"The most valuable feature is the web application firewall."
"Cloudflare allows us to self-host services such as Rocket.Chat and Node-RED, in high-availability mode, thanks to round robin DNS which allows us to share one hostname between our two locations."
"The solution provides good load balancing and protection against DDoS attacks."
"From what I've seen so far, there are no negatives to report as of yet"
"The most valuable feature of Cloudflare DNS is security."
"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."
"Fastly uses configuration versioning, where you can deploy a new version in less than one minute."
"Rate limiting is a good feature that protects from volumetric attacks."
"The product's initial setup phase is straightforward."
"Compute@Edge features are valuable to me."
"Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for help, live, engage, and ring when they respond. Very quickly."
"Its initial setup process is straightforward."
"The product helps our organization to access sites located in different regions quickly."
"Manageability and visibility are good."
"Citrix Web App API Protection allows you to enable a blocking mode"
"I found that the GUI was very easy to to navigate. If you were looking for something, it was fairly easy to find. There's a lot of third-party documentation and information available online as well."
"The web application firewalling component is a powerful feature."
"Unified Gateway allows me to provide secure external access to applications for suppliers and customers while requiring Multi-Factor Authentication."
"The load balancing is one of the most valuable features."
"It has helped us to increase the resiliency of the application and the performance."
"It allows students to access required software for their studies."
 

Cons

"The analytics, basically the dashboard, doesn't have much to it."
"One area of improvement is in the Access Rules. Hypothetically, if we wanted to block or challenge traffic outside of the United States, the only way to currently do that (as far as I know) is to enter every single country outside of the United States. That could be a labor intensive job. A solution could be to enable users to create a rule where traffic is only allowed within a certain country."
"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."
"Cloudflare's console should be made more user-friendly."
"Cloudflare could be improved by introducing a mid-tier pricing option."
"There should be a specific price list for enterprise-level customers."
"The solution could use more analytics on the backend to give us more insights into everything. More reports would be helpful."
"It should have easier documentation for the configuration. It's very technical and people who aren't technical should also be able to do the configuration."
"The solution's pricing could be better."
"What I don't like about Fastly is that they charge a heavy price."
"The product should provide improved bot detection and management."
"It is missing a "staging" platform to deploy a test configuration with all of the real settings, which would allow us to properly test before putting it into production."
"Stronger analytics would be helpful, like showing configurations that haven't served a certain amount of traffic in a while. With many properties, things can get lost track of - duplicates or unused configurations not properly decommissioned."
"Support is not that great."
"Fastly's customer service area needs improvement."
"The technical support could be improved. They do not respond or assist customers in a timely manner."
"The configuration for its web application firewall is complicated."
"Technical support could be improved."
"I would like to see support for scripting, like "iRule", which gives you the option to implement any configuration which is not available out of the box."
"The tool's pricing is a pain point since we have many cheaper alternatives."
"They can improve the scalability and the multi-tenancy feature. We recently tried to configure an authentication, and we ran into some issues while using the web-based GUI. It was very slow when you log in with your credentials in the web-based GUI. Each time we clicked on the menu, it tried to do the authentication. It works properly in the console."
"Currently, the support team's responsiveness is lacking, and the technical personnel on calls often seem unfamiliar with the issues or inadequately trained."
"Should offer more flexible cost-effective licensing for small to medium sized organizations."
 

Pricing and Cost Advice

"In terms of licensing costs, we don't pay for licensing for Cloudflare. We only establish communication, then for peering, Cloudflare takes care of the cross-connection in different data centers."
"That is one of the great features. I was able to access the majority of the features and services for free."
"I give the price a five out of ten."
"So far I use free tier and happy with it. You can subscribe to business package if needed."
"There are no additional costs beyond the standard licensing fees."
"The pricing for the service is reasonable, neither excessively cheap nor prohibitively expensive. It aligns well with the value of their 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."
"The tool is a premium product, so it is very expensive."
"The pricing has been very competitive."
"You need to pay a premium price for the tool."
"I've generally found Fastly to be very competitive in pricing, especially around Compute@Edge."
"It is an expensive solution."
"Fastly is less expensive than one of its competitors."
"In my opinion, Fastly is priced competitively."
"The solution is cheaper than other products in the market."
"We are quite happy with price. It's not too high."
"The solution is expensive compared to one of its competitors."
"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 license for Citrix NetScaler is on an annual basis and it is reasonably priced."
"NetScaler does the same thing as an F5 and it's cheaper."
"It is very pricey, but we get it. If you need the best, money shouldn't be a problem."
"The client pays for the Citrix NetScaler license annually."
"F5 BIG-IP is much more expensive than Citrix ADC. For example, If we choose two platforms, Citrix ADC, 3000 version, and we choose F5, F4200 version. F5 BIG-IP has connections, timers, and throughput similar to Citrix ADC, but the price is very expensive."
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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
14%
Financial Services Firm
11%
Comms Service Provider
10%
Retailer
9%
Computer Software Company
15%
Financial Services Firm
10%
Government
9%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business46
Midsize Enterprise8
Large Enterprise25
By reviewers
Company SizeCount
Small Business5
Large Enterprise4
By reviewers
Company SizeCount
Small Business45
Midsize Enterprise23
Large Enterprise57
 

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 Fastly?
Support is good; the product works as advertised. We have a Slack connection with them. So we can basically ask for h...
What needs improvement with Fastly?
Fastly has POPs with huge servers across the world, so it works effectively everywhere except the mainland China regi...
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...
 

Also Known As

Cloudflare DNS
No data available
Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall, NetScaler VPX - Customer Licensed
 

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.
Twitter, Airbnb, Alaska Airlines, Pinterest, Vimeo, The Guardian, The New York Times, Ticketmaster, The Drupal Association, Opera, about.com, imgur, Etsy, Foursquare, GitHub, New Relic, shopify, Shazam, Firebase
ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk
Find out what your peers are saying about Fastly vs. NetScaler and other solutions. Updated: September 2025.
869,566 professionals have used our research since 2012.