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Palo Alto Networks PA-Series vs Zscaler Cloud Firewall comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 16, 2024

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
5.7
Fortinet FortiGate offers cost-effective security with quick deployment, improving efficiency, reducing downtime, and providing a strong return on investment.
Sentiment score
7.5
Palo Alto Networks PA-Series offers cost-effective ROI with advanced security features, strong performance, and long-term user satisfaction.
Sentiment score
1.0
Users experienced cost reductions, improved security, enhanced performance, easier scalability, better threat protection, simplified management, and efficient resource utilization.
Clients are now comfortable and not wasting productive hours on IT support.
The automation part is giving us a cost benefit and speed; we can react faster.
It's a very useful tool to mitigate and protect your enterprise.
 

Customer Service

Sentiment score
6.4
Fortinet FortiGate support is mostly praised for responsiveness and knowledge, though inconsistencies exist in complex cases or regions.
Sentiment score
7.1
Customers praise Palo Alto Networks PA-Series support for quality and speed, though initial response times could improve.
Sentiment score
5.0
Zscaler Cloud Firewall offers responsive and knowledgeable support, though occasional escalations might cause delays, with room for improvement.
They offer very accurate solutions.
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.
I would rate the technical support for Fortinet FortiGate a ten out of ten.
Initially, it took one or two hours to get a Palo Alto engineer, which is quite slow.
I am happy with the technical support from Palo Alto.
The response and support are sometimes inadequate, which detracts from the overall experience of an otherwise impressive solution.
The technical support from Zscaler was excellent.
 

Scalability Issues

Sentiment score
7.0
Fortinet FortiGate offers scalability and easy integration for diverse environments, catering to businesses from small to large enterprises.
Sentiment score
7.3
PA-Series offers scalable solutions but some models need upgrades; choosing the right model is crucial for adaptability.
Sentiment score
5.3
Zscaler Cloud Firewall is scalable and easy to manage, praised for performance and user satisfaction across various regions.
They scale up really well from smaller models like the FortiGate 40 and 50 to bigger sites with the FortiGate 100 for more throughput - up to enterprise datacenters.
The variation comes in terms of the interfaces and throughputs, but from a security perspective, you get the same benefit, irrespective of whether you have an entry-level unit or an enterprise.
We determine sizing based on multiple factors: number of users, available links, traffic types, server count, services in use, and whether services will be published.
The solution can handle more than ten thousand users in my organization.
There are no restrictions in scalability.
In this case, Twingate will be very easy compared to Zscaler.
 

Stability Issues

Sentiment score
7.5
Fortinet FortiGate is highly stable and reliable, excelling in continuous operation with effective network management, despite occasional update issues.
Sentiment score
8.5
Palo Alto Networks PA-Series is praised for its robust stability, reliability, and effective performance, though frequent updates are noted.
Sentiment score
6.4
Zscaler Cloud Firewall is stable, reliable, and well-rated, with minor performance issues and redundancy minimizing outages.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
Currently, we are experiencing a general outage of one of the main internet service providers of the Dominican Republic, and we have not been impacted in our operations because with SD-WAN, we have another internet service provider and we are working with the second WAN connection without any disruption.
There were some stability issues due to occasional latency and lags, particularly with the GUI and report generation.
 

Room For Improvement

Users express concern over Fortinet FortiGate's interface stability, functionality, performance issues, and call for improved support and features.
Palo Alto Networks PA-Series needs enhanced security, usability, support, integration, and pricing flexibility to address current user challenges.
Zscaler Cloud Firewall needs improved features, better integration, enhanced support, wider coverage, affordable pricing, and a modernized interface.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
When considering Sophos XG, which we also use, the logging and reporting functionality is notably more efficient.
The interface of Palo Alto Networks PA-Series should be made much more user-friendly.
For the next release of the Palo Alto Networks PA-Series firewall, I would like to see logs monitoring included.
For now, there is no dashboard or network management system available for Twingate.
The reverse proxy feature for Data Loss Prevention (DLP) is missing.
I believe the integration of AI could improve the dashboard by making it more agile and effective in monitoring and predicting threats.
 

Setup Cost

Fortinet FortiGate offers high initial costs but competitive pricing, valued features, and flexible licensing compared to competitors.
Palo Alto Networks PA-Series is costly but valued for robust performance and features, appealing to enterprise customers despite higher prices.
Zscaler Cloud Firewall is flexible yet expensive, valued for tiered packages, with prices affected by user count and features.
Last year, I renewed the support for three years, which can sometimes be expensive but depends on the security benefits and how it helps us.
It offers cost savings as it is generally cheaper than the competition.
It is about 20% cheaper.
The firewall is expensive for every company, but the cost is worth it to ensure maximum security.
The price of Palo Alto Networks PA-Series is expensive.
Regarding value for money, we brought this Palo Alto Networks PA-Series firewall last month, and we have taken up to 3 year renewals.
Zscaler Cloud Firewall is quite expensive compared to competitors.
 

Valuable Features

Fortinet FortiGate offers robust, affordable security with user-friendly interface, centralized management, and efficient SD-WAN capabilities.
Palo Alto Networks PA-Series offers robust security with advanced threat detection, user-friendly interface, and seamless integration enhancing functionality.
Zscaler Cloud Firewall offers advanced threat protection, simplified management, and seamless integration, enhancing security with flexible policy customization and traffic control.
In terms of security, we have not experienced any security flaws or loopholes, and it has proven to be quite stable.
FortiGate has helped reduce the risk of cyberattacks that might disrupt our client's production.
These features help reduce our downtime, manage the ISPs, and deploy SLAs for all the website traffic.
The most effective features of the solution are its Magic Quadrant positioning, making it a leading firewall on perimeter areas and internet edges.
The most valuable feature of Palo Alto Networks PA-Series is that it is highly customizable.
The best features of the Palo Alto Networks PA-Series firewall include Global protector VPN workings.
It is really customized, a security policy that can be applied to the users so they can access only the resources I enable them.
Advanced threat protection features in Zscaler Cloud Firewall are practically the key component that every customer wants.
The biggest advantage of Zscaler Cloud Firewall is its consolidation of products.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Ranking in Firewalls
1st
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
575
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Intrusion Detection and Prevention Software (IDPS) (1st), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st), ZTNA (2nd), Unified Threat Management (UTM) (1st)
Palo Alto Networks PA-Series
Ranking in Firewalls
14th
Average Rating
8.6
Reviews Sentiment
7.4
Number of Reviews
33
Ranking in other categories
No ranking in other categories
Zscaler Cloud Firewall
Ranking in Firewalls
23rd
Average Rating
8.2
Reviews Sentiment
5.1
Number of Reviews
19
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Firewalls category, the mindshare of Fortinet FortiGate is 20.4%, up from 19.1% compared to the previous year. The mindshare of Palo Alto Networks PA-Series is 0.8%, up from 0.2% compared to the previous year. The mindshare of Zscaler Cloud Firewall is 0.5%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Firewalls Market Share Distribution
ProductMarket Share (%)
Fortinet FortiGate20.4%
Palo Alto Networks PA-Series0.8%
Zscaler Cloud Firewall0.5%
Other78.3%
Firewalls
 

Featured Reviews

Vasu Gala - PeerSpot reviewer
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.
Bilal  Mustafa - PeerSpot reviewer
Manage security with leading firewall features while navigating AWS cloud challenges
The most effective features of the solution are its Magic Quadrant positioning, making it a leading firewall on perimeter areas and internet edges. It functions very well in data centers. Its effectiveness is highly dependent on budget and approach. Moreover, the return on investment is calculated according to my organization’s sizing and has never been an issue.
Carlos Snel - PeerSpot reviewer
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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Top Industries

By visitors reading reviews
Computer Software Company
15%
Comms Service Provider
9%
Manufacturing Company
8%
Financial Services Firm
6%
Computer Software Company
13%
Manufacturing Company
10%
Comms Service Provider
7%
Government
7%
Computer Software Company
12%
Manufacturing Company
9%
Financial Services Firm
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business350
Midsize Enterprise130
Large Enterprise187
By reviewers
Company SizeCount
Small Business13
Midsize Enterprise5
Large Enterprise14
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise13
 

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...
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...
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 ...
What do you like most about Palo Alto Networks PA-Series?
The reporting feature and application ID functionality within Palo Alto Networks PA-Series are incredibly valuable to...
What is your experience regarding pricing and costs for Palo Alto Networks PA-Series?
Regarding value for money, we brought this Palo Alto Networks PA-Series firewall last month, and we have taken up to ...
What needs improvement with Palo Alto Networks PA-Series?
I do not have any challenges or areas for improvement with Palo Alto Networks PA-Series. There are no AI integrations...
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...
What do you like most about Zscaler Cloud Firewall?
The product’s firewall and VPN package are fantastic compared to any other solution.
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.
 

Overview

 

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
Find out what your peers are saying about Palo Alto Networks PA-Series vs. Zscaler Cloud Firewall and other solutions. Updated: September 2025.
869,089 professionals have used our research since 2012.