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 #31 with an average rating of 9.5, while Zscaler is ranked #36 with an average rating of 7.5. Palo Alto Networks holds a 0.2% mindshare in Firewalls, compared to Zscaler’s 0.6% mindshare. Additionally, 100% of Palo Alto Networks users are willing to recommend the solution, compared to 93% 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: December 2025).

Buyer's Guide

Palo Alto Networks CN-Series vs. Zscaler Cloud Firewall

December 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 January 2026, in the Firewalls category, the mindshare of Fortinet FortiGate is 18.8%, down from 20.7% compared to the previous year. The mindshare of Palo Alto Networks CN-Series is 0.2%, up from 0.0% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Firewalls Market Share Distribution
Product	Market Share (%)
Fortinet FortiGate	18.8%
Palo Alto Networks CN-Series	0.2%
Zscaler Cloud Firewall	0.6%
Other	80.4%

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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Carlos Snel

Director at Aquila ICT Solutions

Has streamlined secure deployments across large enterprises while offering reliable protection and intuitive management

The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly. I see it as user-friendly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI. It's very intuitive, making it easy to navigate alerts and incidents. My clients rarely have questions about where to find specific information once Zscaler Cloud Firewall is running. The interface speaks for itself, requiring little to no additional training, which is a major plus. Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants. Unfortunately, it is an option and not included in the basic package. Clients need to pay for the next higher bundle to access it, but practically all clients I have dealt with want this feature 100%. Regarding visibility, I can confirm that Zscaler Cloud Firewall indeed includes a feature for application layer visibility embedded in the service. It provides visibility into what you're doing, which is especially interesting nowadays when discussing AI tools, as companies do not want their employees to copy-paste sensitive information into AI systems. We have seen cases such as Samsung's chip design where sensitive info got exposed. The visibility of applications, including cloud applications and AI tools, is significant for compliance with data policies, and you can also run reports and alerts on it.

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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

"The FortiGate controls the user's activities and maximizes my bandwidth use overall."

"It's very fast and easy to configure."

"Fortinet FortiGate SWG's content is its most valuable feature."

"The strengths of Fortinet FortiGate include network security, VPN, site-to-site tunnels, client VPN solutions, two-factor authentication for VPN clients, and SD-WAN for branch level. We have implemented these solutions for various customers."

"Generally, every aspect of it being a next-generation firewall provides good value."

"The web filtering feature and the intrusion protection system are the most valuable. It is a resilient appliance. I never had an issue with it in terms of any security breaches."

"The most valuable feature of FortiGate Next Generation Firewall is its SD-WAN."

"The quick resolution of issues with Fortinet FortiGate is due to the support of the company and the fact that the equipment is easy to work with."

More Fortinet FortiGate pros

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

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

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

"Most of the features that Zscaler has to offer, we will deploy."

"It is a stable solution."

"Includes advanced tech protection."

"Zscaler provides effective protection against various cyber threats ensuring a safe environment"

"The scalability is okay. We have around 2200 people using this solution."

"The initial setup is straightforward."

"The solution offers good sandboxing."

More Zscaler Cloud Firewall pros

Cons

"The solution needs to improve its integration with cybersecurity."

"It would be nice if backups could more easily migrate between different models."

"The stability could be a bit better."

"We would like to see a better training platform implemented."

"Application management can be improved."

"The price could be improved."

"They can probably improve the reporting feature. Reporting and report alerting are the main key features of this solution. They can always find ways to improve these."

"One area for improvement is the performance on the bandwidth demands for smaller devices, as well as better web filtering."

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."

"I don't have the visibility of a control dashboard or a network management system."

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

"They do not provide a few components that are fundamental to differentiate the products"

"One area for improvement lies in their customer service, which feels less ideal for a premium product. The response and support are sometimes inadequate, which detracts from the overall experience of an otherwise impressive solution."

"Certain criteria need to be met if you want to scale this solution."

"Because it's on cloud, it doesn't allow application of extra settings."

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

"It would be better if they improved their policy, package visibility, and flexibility while we're creating rules for inspection. It could also be cheaper or more things could be included in the basic package. In the next release, I would like better coverage in the Asia Pacific region and better quality of service."

More Zscaler Cloud Firewall cons

Pricing and Cost Advice

"The beauty is the price performance ratio is great with FortiGate. It provides all the features we needed and the price is comparable with others' firewalls. The price is quite competitive with the firewalls with similar features."

"The cost of Fortinet FortiGate is competitive and not expensive compared to other enterprise- grade solutions. On average, the license cost per year is around seventy percent of the firewall's purchase price."

"The price of Fortinet FortiGate is affordable. Most of our customers are on a three-year license to use the solution. All the features and support are included in the price."

"FortiGate Next Generation Firewall is a very cheap solution."

"It's not the cheapest, but it's value for money. Given everything we've got out of it: the DMZ port, the VPN, and the high availability, it's a pretty reasonable price."

"Although the solution's pricing is high, compared with other products, it may be cheap."

"The main reason we chose Fortinet FortiGate was that the price was better than the competition."

"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."

More Fortinet FortiGate pricing and cost advice

Information not available

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

"It is expensive for small businesses."

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

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

"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."

"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."

"There is an annual license required for the use of the Zscaler Cloud Firewall."

More Zscaler Cloud Firewall pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Comms Service Provider

Manufacturing Company

Financial Services Firm

No data available

Manufacturing Company

13%

Computer Software Company

11%

Financial Services Firm

Transportation Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	357
Midsize Enterprise	133
Large Enterprise	188

No data available

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	2
Large Enterprise	12

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...

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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...

See all answers

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...

See all answers

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 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

What needs improvement with Zscaler Cloud Firewall?

In terms of improvements for Zscaler Cloud Firewall, I think every product has needed enhancements over time, and cur...

See all answers

Comparisons

Sophos Firewall vs Fortinet FortiGate

Compared 20% of the time

Cisco Secure Firewall vs Fortinet FortiGate

Compared 13% of the time

Netgate pfSense vs Fortinet FortiGate

Compared 6% of the time

OPNsense vs Fortinet FortiGate

Compared 3% of the time

Palo Alto Networks NG Firewalls vs Fortinet FortiGate

Compared 3% of the time

More Fortinet FortiGate Competitors

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

Compared 49% of the time

Check Point Harmony SASE (formerly Perimeter 81) vs Palo Alto Networks CN-Series

Compared 29% of the time

Azure Firewall vs Palo Alto Networks CN-Series

Compared 23% of the time

More Palo Alto Networks CN-Series Competitors

Check Point Quantum Force vs Zscaler Cloud Firewall

Compared 16% of the time

Palo Alto Networks NG Firewalls vs Zscaler Cloud Firewall

Compared 10% of the time

Azure Firewall vs Zscaler Cloud Firewall

Compared 8% of the time

Huawei NGFW vs Zscaler Cloud Firewall

Compared 5% of the time

Palo Alto Networks VM-Series vs Zscaler Cloud Firewall

Compared 4% of the time

More Zscaler Cloud Firewall Competitors

Product Reports

Buyer's Guide

Fortinet FortiGate

January 2026

Download Fortinet FortiGate product report

Buyer's Guide

Firewalls

January 2026

Download Palo Alto Networks CN-Series product report

Buyer's Guide

Zscaler Cloud Firewall

January 2026

Download Zscaler Cloud Firewall product report

Also Known As

Fortinet FortiGate Next-Generation Firewall

No data available

Overview

Fortinet FortiGate is a versatile network security tool offering features like VPN, firewall, web filtering, intrusion prevention, and scalability. It is known for its performance and integration with other Fortinet products, making it a preferred choice for robust cybersecurity.

Fortinet FortiGate stands out as a comprehensive cybersecurity solution with strong performance and ease of configuration. It delivers unified threat management, integrating features such as dynamic routing, SD-WAN support, and centralized management. Despite its strengths, improvements in the web interface's stability, pricing structures, and reporting capabilities are needed. Users seek better integration with third-party tools and automation advancements to enhance the experience further. These enhancements, alongside improvements in bandwidth management and the reduction of licensing costs, are points of interest for users looking to capitalize on FortiGate's extensive capabilities.

What are Fortinet FortiGate's key features?

VPN: Ensures secure remote connections.
Firewall: Protects against unauthorized access.
Web Filtering: Blocks malicious sites and content.
Application Control: Manages and controls applications.
Intrusion Prevention: Detects and prevents vulnerabilities.
SSL Inspection: Enhances security by inspecting encrypted traffic.

What benefits should be considered when evaluating Fortinet FortiGate?

Affordability: Offers cost-effective security solutions.
Reliability: Known for consistent and stable performance.
Integration: Seamlessly integrates with other Fortinet products.
Comprehensive Protection: Provides broad threat protection capabilities.

Fortinet FortiGate is widely implemented across industries as a primary firewall system for securing internet gateways and safeguarding data centers. It supports businesses in achieving SD-WAN integration and enhances cybersecurity by providing essential features like antivirus, web filtering, and application control. Enterprises utilize FortiGate for securing remote connections and ensuring compliance with security standards, making it adaptable for different network sizes and industries.

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

December 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: December 2025.

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