Palo Alto Networks CN-Series vs Zscaler Cloud Firewall comparison

Palo Alto Networks and Zscaler are both solutions in the Firewalls category. Palo Alto Networks is ranked #30 with an average rating of 9.5, while Zscaler is ranked #24 with an average rating of 8.3. Palo Alto Networks holds a 0.1% mindshare in Firewalls, compared to Zscaler’s 0.4% mindshare. Additionally, 100% of Palo Alto Networks users are willing to recommend the solution, compared to 92% of Zscaler users who would recommend it.

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Executive Summary

We performed a comparison between Palo Alto Networks CN-Series and Zscaler Cloud Firewall based on real PeerSpot user reviews.

Find out in this report how the two Firewalls solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall Report (Updated: July 2025).

Buyer's Guide

Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall

July 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

Fortinet FortiGate

Mindshare comparison

As of August 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.8%, up from 17.8% compared to the previous year. The mindshare of Palo Alto Networks CN-Series is 0.1%, up from 0.0% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 0.4%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls

Featured Reviews

Vasu Gala

Manager, Information Technology Operation/Presales at TechMonarch

A stable solution with an intuitive interface and quick customer service

I have been working with Fortinet FortiGate, WatchGuard, Sophos, and SonicWall. I'm not as comfortable with SonicWall because of their UI and limitations. I prefer Fortinet above all other options. When it comes to configuration, I am confident in my ability to handle various tasks, including creating policies such as firewall rules, web policies, and application policies. Additionally, I can configure VPNs and implement load balancing, among other tasks. Overall, I feel much more comfortable working with Fortinet. Fortinet has made significant improvements by integrating AI with firewalls for threat analysis and prevention. In the past 2-3 years, they have launched FortiSASE and SIEM, and they also provide SOC services. Both Palo Alto and Fortinet FortiGate are excellent. While Fortinet FortiGate comes at higher prices, the functionality and support justify the cost. They promptly resolve firmware issues and inform all support providers about configuration changes.

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Ahmed_Shalaby

Senior Cyber Security Engineer at Beta Information Technology

Application control excels and integration with monitoring system boosts efficiency

I am an integrator working with Palo Alto Networks CN-Series and Panorama. I have been involved with the implementation of Palo Alto Networks CN-Series The stability of Palo Alto Networks CN-Series is excellent. Application control is one of the most valuable features. Its monitoring capability…

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Bhaskar Rao

Network manager admin at Yamaha

Though it helps deal with web traffic or any malicious traffic, it needs to work on its DC performance issues

The product's initial setup phase is moderate in level, so it is neither very complex nor very easy. For the deployment, my company first needs to gather all the requirements of the users and the domain names and consider how many users there are in the company. In the implementation and planning part, my company needs to consider what kind of policies we will create while ensuring that the policies are created based on the requirements of the users. There is a need to segregate the users' requirements since there are separate departments in the company, like the HR department, sales department, IT department, and manufacturing department, so that our company can create policies depending on their requirements. On-site, if you want a GRE tunnel, our company can handle GRE tunnel traffic routing and Zscaler Cloud Firewall, after which Zscaler will take action based on the policies created by our organization. For the deployments and maintenance, a team of five members consisting of two managers and three engineers is required.

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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

"Good load balancing feature."

"It's super reliable. I don't think I've ever had a reliability issue with it."

"The most valuable feature is the SSL VPN, as it allows us to connect and it separates this product from other firewalls."

"The stability of the solution is excellent, as it is with other Fortinet products."

"The most valuable feature is the policy routing and application control."

"Run Script is the best tool to use in Fortinet FortiGate with multiple environments."

"The solution is very user friendly. The user interface in particular is quite nice."

"SSL-VPN is very useful for us and has been very reliable."

More Fortinet FortiGate pros

"The stability of Palo Alto Networks CN-Series is excellent."

"The app inspection is very helpful for network security."

"The product’s firewall and VPN package are fantastic compared to any other solution."

"The solution is scalable."

"Zscaler Cloud Firewall understands the applications in the current generation and adapts to the present generation cloud applications."

"It is a stable solution."

"Zscaler is still a very good product."

"It helps a lot of companies to reduce their downtime. Also, It helps businesses in terms of being secured and protected from any threats."

"It provides in-depth visibility into your network, ensuring that traffic flowing into your organization, be it from offices or individual users, is effectively filtered and secured through multiple layers of protection."

"Once you have Zscaler running you have access to configure it however you want."

More Zscaler Cloud Firewall pros

Cons

"There were quite a few problems with the stability of the system."

"FortiLink is the interface on the firewall that allows you to extend switch management across all of your switches in the network. The problem with it is that you can't use multiple interfaces unless you set them up in a lag. Only then you can run them. So, it forces you to use a core type of switch to propagate that management out to the rest of the switches, and then it is running the case at 200. It leaves you with 18 ports on the firewall because it is also a layer-three router that could also be used as a switch, but as soon as you do that, you can't really use them. They could do a little bit more clean up in the way the stacking interface works. Some use cases and the documentation on the FortiLink checking interface are a little outdated. I can find stuff on version 5 or more, but it is hard to find information on some of the newer firmware. The biggest thing I would like to see is some improvement in the switch management feature. I would like to be able to relegate some of the ports, which are on the firewall itself, to act as a switch to take advantage of those ports. Some of these firewalls have clarity ports on them. If I can use those, it would mean that I need to buy two less switches, which saves time. I get why they don't, but I would still like to see it because it would save a little bit of space in the server rack."

"The solution lacks multi-language support."

"There are some problems that support cannot give you a logical reason as to why it happened. For example, I had a case where I was dealing with a WhatsApp application that was giving issues. Technical support gave more than one reason it could be giving issues, but none of them solved the problem. Eventually I solved the problem, but it was far from the solutions that support had given."

"The feedback that I have received is that the performance could be better, and the user experience is not as good compared to a previous solution we used. It could be more user-friendly. Of course, it still works fine for our operations."

"If they could extend their fabric towards other vendor environments for integration, that would be great."

"They need faster serviceability and more security features."

"It claims it does DLP, but the degree and level of controls are very basic."

More Fortinet FortiGate cons

"I'd like to see more IOPs features."

"Palo Alto Networks CN-Series could improve on its pricing as it is quite expensive."

"When it comes to customer support, there is room for improvement in Zscaler's service."

"There are several areas for improvement. Firstly, the GUI is outdated, with noticeable lags and delays, especially when generating reports for past transactions."

"Pricing is a challenge."

"The product could improve its integration with some legacy systems."

"Instead of the standard license, they should certainly provide customers with the visibility to access and view the logs."

"The issue right now is probably that Zscaler is not providing web browser isolation. Another solution, Menlo, offers this. For one customer, we had to send traffic to Menlo to do the isolation for us. It was requested by the customer so that they could integrate any iframe. Zscaler needs to add this type of feature in their next release."

"We are having some issues with internet access being denied when organizational ID-based policies change. For example, a lower level employee ends up getting the same level of access as that of a higher level employee."

"Data Leak Prevention is only for web filtering and there is no protection for email."

More Zscaler Cloud Firewall cons

Pricing and Cost Advice

"Fortinet is the least expensive solution."

"They need to be competitive with other solutions."

"My experience with the pricing, setup cost, and licensing for Fortinet FortiGate is quite good. I don't have a public site, such as in Azure, where I can see the pricing. I always have to go through the distributor, and that could take some time to get the real price for each appliance."

"I had to pay for the license for the firewall, but it is guaranteed to have updates. I expect a good service for it. It was about €1000 for a year, and there was no additional cost."

"You need to pay a license for this solution. Our licensing is now done in our subsidiary."

"It is too expensive for us. My organization is very small, and we have a total of ten users. We have three internal users and seven external users. The FortiGate 100D series is too expensive for renewing the licenses."

"I find it quite reasonable."

"For our organization, the licensing costs are approximately $7,000 per year."

More Fortinet FortiGate pricing and cost advice

Information not available

"It comes at a significantly reduced cost while ensuring control and effectiveness."

"The product is a bit expensive compared to the solutions offered by its competitors, like Palo Alto. There is a need to make yearly payments towards the license in charges associated with the product."

"On a scale from one to ten, where one is cheap, and ten is expensive, I rate the solution's pricing an eight out of ten."

"Zscaler is priced too high compared to the cost of Fortinet."

"It is not the most budget-friendly solution, but it's important to consider its overall value."

"The licensing is on a yearly basis. It is somewhere around 30 or 40 pounds per user for our organization."

"There are different subscription models available."

"There are licensing costs, and I would not say that it's a cheap vendor."

More Zscaler Cloud Firewall pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

16%

Comms Service Provider

Manufacturing Company

Financial Services Firm

No data available

Computer Software Company

11%

Manufacturing Company

Financial Services Firm

Construction Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

Which is the better NGFW: Fortinet Fortigate or Cisco Firepower?

When you compare these firewalls you can identify them with different features, advantages, practices and usage a...

See all answers

What is the biggest difference between Sophos XG and FortiGate?

From my experience regarding both the Sophos and FortiGate firewalls, I personally would rather use FortiGate. I know...

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What are the biggest technical differences between Sophos UTM and Fortinet FortiGate?

As a solution, Sophos UTM offers a lot of functionality, it scales well, and the stability and performance are quite ...

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What is your experience regarding pricing and costs for Palo Alto Networks CN-Series?

The pricing of Palo Alto Networks CN-Series is quite expensive, rating around eight on a scale of one to ten for cost.

See all answers

What needs improvement with Palo Alto Networks CN-Series?

Palo Alto Networks CN-Series could improve on its pricing as it is quite expensive. The SD-WAN implementation using P...

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What is your primary use case for Palo Alto Networks CN-Series?

I am an integrator working with Palo Alto Networks CN-Series ( /products/palo-alto-networks-cn-series-reviews ) and P...

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Which lesser known firewall product has the best chance at unseating the market leaders?

Netscope, Zscaler if they continue route they are on now. FIrewalls needs great deal of automation on each end, datac...

See all answers

What do you like most about Zscaler Cloud Firewall?

The product’s firewall and VPN package are fantastic compared to any other solution.

See all answers

What is your experience regarding pricing and costs for Zscaler Cloud Firewall?

Zscaler Cloud Firewall is quite expensive compared to competitors. However, it offered moderate value for money.

See all answers

Comparisons

Sophos XG vs Fortinet FortiGate

Compared 20% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 12% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 11% of the time

Cisco Meraki MX vs Fortinet FortiGate

Compared 5% of the time

SonicWall TZ vs Fortinet FortiGate

Compared 4% of the time

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Palo Alto Networks VM-Series vs Palo Alto Networks CN-Series

Compared 100% of the time

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Azure Firewall vs Zscaler Cloud Firewall

Compared 15% of the time

Check Point Quantum Force (NGFW) vs Zscaler Cloud Firewall

Compared 10% of the time

Palo Alto Networks NG Firewalls vs Zscaler Cloud Firewall

Compared 10% of the time

OPNsense vs Zscaler Cloud Firewall

Compared 7% of the time

Cisco Secure Firewall vs Zscaler Cloud Firewall

Compared 5% of the time

More Zscaler Cloud Firewall Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

August 2025

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

August 2025

Download Palo Alto Networks CN-Series product report

Buyer's Guide

Zscaler Cloud Firewall

July 2025

Download Zscaler Cloud Firewall product report

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall

No data available

Overview

Fortinet FortiGate offers comprehensive network security and firewall protection across multiple locations. It effectively manages data traffic and secures environments with features like VPN, intrusion prevention, and UTM controls.

Organizations rely on Fortinet FortiGate for its robust integration with advanced security policies, ensuring significant protection for enterprises, cloud environments, and educational sectors. It facilitates network segmentation, application-level security, and authentication management, securing communication within and between locations such as branches and data centers. Its efficient SD-WAN and UTM features enable streamlined data management and enhanced threat protection capabilities. Users appreciate its centralized management, facilitating seamless operations across diverse environments.

What are the key features of Fortinet FortiGate?

VPN Capabilities: Ensure secure remote access for users and seamless site-to-site connections.
Intrusion Prevention System (IPS): Detect and prevent security threats and vulnerabilities.
Advanced Firewall: Offers robust firewalling with application control and web filtering.
SD-WAN: Optimizes application performance and enhances bandwidth management.
SSL VPN: Provides reliable and secure access for remote workers.

What benefits should users expect from Fortinet FortiGate?

High-performance Security: Delivers effective threat mitigation with high availability.
Centralized Management: Simplifies network operations with cloud-based management tools.
Detailed Analytics: Provides comprehensive insights into network activity and security threats.
Load Balancing: Ensures optimal resource distribution and traffic management.

Fortinet FortiGate is crucial in sectors like education, offering robust networks for secure data flow between campuses and facilitating remote learning. In enterprise environments, it allows efficient management of application traffic and security across multiple branches, while in the cloud, it seamlessly integrates with diverse platforms to enhance security infrastructure.

Fortinet

Palo Alto Networks CN-Series offers advanced container security and micro-segmentation for Kubernetes environments, known for robust threat prevention, ease of deployment, and seamless integration with existing security infrastructure.

Palo Alto Networks CN-Series enables application-level visibility and control, providing comprehensive protection for dynamic workloads. Its scalable architecture suits modern cloud-native applications, making it a top choice for securing containerized environments and microservices. Users appreciate its automated policy creation, granular micro-segmentation, and enhanced container security. Although it offers great features, users suggest improvement in integration with other security tools, better scalability for larger environments, and enhanced documentation. Performance in high-traffic scenarios and intuitive configuration processes are areas for potential enhancement, along with improved customer support.

What are the key features of Palo Alto Networks CN-Series?

Advanced Threat Protection: Addresses and mitigates security threats efficiently.
Seamless Kubernetes Integration: Integrates easily within Kubernetes environments.
Comprehensive Visibility: Offers visibility across multi-cloud environments.
Automated Policy Creation: Simplifies the policy creation process.
Granular Micro-segmentation: Provides detailed network traffic segmentation.
Enhanced Container Security: Strengthens security measures for containerized applications.
Ease of Deployment: Simplifies overall deployment process.
Scalability: Adapts to growing needs of cloud-native applications.

What benefits or ROI can users expect from Palo Alto Networks CN-Series?

Increased Security: Effective protection against sophisticated threats.
Improved Operational Efficiency: Streamlined deployment and policy management.
Greater Visibility: Enhanced insight into network traffic and potential vulnerabilities.
Cost Savings: Reduced costs through automation and integration of security processes.
Enhanced Compliance: Helps meet regulatory requirements with strong security controls.

Palo Alto Networks CN-Series is implemented across diverse industries including finance, healthcare, and technology. In financial institutions, it addresses stringent security and compliance requirements. In healthcare, it ensures patient data protection within dynamic cloud environments. In tech, it supports innovative cloud-native applications with robust security measures.

Palo Alto Networks

Zscaler enables the world’s leading organizations to securely transform their networks and applications for a mobile and cloud first world. Its flagship services, Zscaler Internet Access and Zscaler Private Access, create fast, secure connections between users and applications, regardless of device, location, or network. Zscaler services are 100% cloud-delivered and offer the simplicity, enhanced security, and improved user experience that traditional appliances or hybrid solutions are unable to match. Used in more than 185 countries, Zscaler operates the world’s largest cloud security platform, protecting thousands of enterprises and government agencies from cyberattacks and data loss.

Check more details: https://www.zscaler.com/produc...

Zscaler

Sample Customers

Amazon Web Services, Microsoft, IBM, Cisco, Dell, HP, Oracle, Verizon, AT&T, T-Mobile, Sprint, Vodafone, Orange, BT Group, Telstra, Deutsche Telekom, Comcast, Time Warner Cable, CenturyLink, NTT Communications, Tata Communications, SoftBank, China Mobile, Singtel, Telus, Rogers Communications, Bell Canada, Telkom Indonesia, Telkom South Africa, Telmex, Telia Company, Telkom Kenya

Information Not Available

Zenith Live, Azure, Carlsberg Group

Buyer's Guide

Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall

July 2025

Free Report: Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall

Find out what your peers are saying about Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall and other solutions. Updated: July 2025.

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