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Fortinet FortiGate vs Palo Alto Networks NG Firewalls vs Zscaler Internet Access comparison

 

Comparison Buyer's Guide

Executive Summary

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
7.1
Fortinet FortiGate delivers cost efficiency, rapid ROI, and enhanced security, reducing downtime and operational expenses for users.
Sentiment score
7.6
Palo Alto Networks NG Firewalls offer strong ROI through enhanced security, threat prevention, and operational efficiency despite a high initial cost.
Sentiment score
7.5
Zscaler Internet Access offers cost and complexity reduction, improved security, and quick ROI, especially for SMBs, despite regional challenges.
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.
Their user-friendly interface and Panorama central management, which provides a comprehensive overview, make them an ideal investment.
The solution helped reduce downtime, which is crucial in time-sensitive industries like manufacturing.
The managed service aspect of Zscaler Internet Access has allowed for reduced staffing costs, resulting in a saving of approximately 20-25% compared to prior expenses.
 

Customer Service

Sentiment score
6.9
Fortinet FortiGate support receives mixed reviews, with praise for expertise but criticism for inconsistent response times and language barriers.
Sentiment score
7.4
Palo Alto Networks NG Firewalls' support experiences vary, with mixed reviews on responsiveness, expertise, and regional satisfaction influencing customer opinions.
Sentiment score
7.1
Zscaler Internet Access support is strong and responsive, though some users seek quicker resolutions and better online resources.
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.
Their response time is within one hour.
They offer fast and competent assistance.
They provide fast response and rapid remediation of problems.
The technical support for Zscaler Internet Access is rated around seven out of ten due to some response time issues and the engagement model.
I find customer support to be quite adequate
 

Scalability Issues

Sentiment score
7.3
Fortinet FortiGate is highly rated for scalability, accommodating growth efficiently, though hardware upgrades may be needed for expansion.
Sentiment score
7.2
Palo Alto Networks NG Firewalls are scalable, with mixed reviews on hardware limitations and better scalability through cloud deployments.
Sentiment score
7.9
Zscaler Internet Access is highly scalable, cloud-based, and supports large user volumes with positive feedback on integration and performance.
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.
Cloud deployments benefit from auto-scaling, allowing for automatic adjustments to firewall capacity based on demand.
It is important to assess the infrastructure size before choosing a model.
Palo Alto Networks NG Firewalls are scalable and reliable.
I find Zscaler Internet Access to be highly scalable, which was one of the reasons for choosing it.
Zscaler Internet Access is scalable and has points of presence across the globe to ensure low latency and reliable connections.
 

Stability Issues

Sentiment score
7.8
FortiGate is praised for its robust reliability, minor update issues, and consistently stable performance across various use cases.
Sentiment score
8.4
Palo Alto Networks NG Firewalls are praised for stability, high throughput, and reliability, outperforming competitors like Cisco and Fortinet.
Sentiment score
7.7
Zscaler Internet Access offers stable performance globally, though regions like China and South Africa occasionally face latency challenges.
We're experiencing 99.999% availability consistently.
I would rate the stability of Fortinet FortiGate a ten out of ten.
The solution is very stable.
With appropriately configured policies, these firewalls can provide robust network security.
After the upgrade, we are experiencing performance issues.
I have not experienced any outages or issues.
Zscaler Internet Access is stable and capable of building resilient architectures.
Zscaler Internet Access is very stable, and I would rate its stability as nine out of ten.
 

Room For Improvement

Fortinet FortiGate users seek lower fees, better interface, integration, support, consistent updates, and improved documentation and features.
Palo Alto Networks NG Firewalls need better pricing, support, integration, management, documentation, and performance to address user challenges.
Zscaler Internet Access needs better integration, user-friendly features, improved support, and competitive pricing to enhance user experience.
Investing in a solution that can accommodate such growth would be more cost-effective than repeatedly purchasing new hardware.
The constant daily revisions necessitate meticulous identification of the relevant documents to prevent the use of outdated information that could jeopardize our environment.
While Fortinet claims to offer a comprehensive network solution, it falls short in addressing computer application issues, particularly server security.
When performance degrades due to full packet inspection, the solution should be to increase the computing power within the same firewall, not to recommend upgrading to a larger, more expensive model.
Further integration into a unified system could improve usability.
Palo Alto Networks NG Firewalls lack built-in multi-factor authentication, requiring the purchase of a third-party tool to implement this essential security feature.
The response time and engagement model for technical support could be improved to handle complex outages more efficiently.
One feature I am missing is the ability to connect automatically to internal monitoring systems.
 

Setup Cost

Fortinet FortiGate is competitively priced, offering cost-effective options, though renewal costs and additional features may increase expenses.
Palo Alto Networks NG Firewalls are costly but provide robust security, with pricing based on contract length and features.
Zscaler Internet Access is seen as costly but premium compared to traditional solutions, offering unmatched services and global coverage.
FortiGate is priced lower than Palo Alto.
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 is about 20% cheaper.
Palo Alto Networks NG Firewalls are expensive.
Palo Alto Networks NG Firewalls come at a premium, exceeding the cost of most competitors by 45 percent.
Colleagues looking for the cheapest and fastest firewall can still use Palo Alto Networks NG Firewalls because they are affordable.
Zscaler Internet Access is recognized as an expensive solution.
Zscaler Internet Access is less expensive than competitors like Palo Alto, offering a premium service justified by security enhancements and cost-effective scalability.
 

Valuable Features

Fortinet FortiGate is valued for its security features, ease of use, flexibility, reliability, and affordability across organizations.
Palo Alto Networks NG Firewalls provide advanced threat prevention, application control, and integrate various security capabilities into a user-friendly platform.
Zscaler Internet Access delivers comprehensive cloud-native security with threat protection, ease of use, and centralized management for remote users.
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 valuable features of Palo Alto Networks NG Firewalls are DNS sync calls, enabled security features, and Wildfire.
Threat Vault allows us access to a comprehensive threat database, enabling us to get detailed information on threats and how to mitigate them.
The most valuable feature of Palo Alto Networks NG Firewalls is Cortex Data Lake.
The most valuable feature for me is the ability to see how my network and traffic looks with modules like analytics and insights.
Some of the most valuable features of Zscaler Internet Access include secure web gateways, URL filtering, data loss prevention, anti-malware defense, file extension blocking, and a comprehensive categorization system.
 

Mindshare comparison

Firewalls
Firewalls
Secure Web Gateways (SWG)
 

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.
AmjadKhan1 - PeerSpot reviewer
Provides inline protection with a unified view and anti-spyware capabilities
I would rate Palo Alto Networks NG Firewalls ten out of ten because it is the best. Our disaster recovery site utilizes Palo Alto Networks Next-Generation Firewalls. We are also in the process of upgrading the firewalls at our 365 sites in Pakistan to Palo Alto Networks firewalls. While budget firewalls may advertise comparable features, they often fall short of effectively detecting viruses, threats, and ransomware. In contrast, Palo Alto Networks NG Firewalls, combined with Cortex XDR, provide comprehensive threat intelligence and detection capabilities, ensuring superior security coverage. I recommend conducting a proof of concept before selecting a firewall. This will allow you to evaluate different options and determine which best suits your needs. While Palo Alto offers robust firewall solutions, it's essential to compare them with other vendors to ensure you make an informed decision.
AshwaniTyagi - PeerSpot reviewer
Offers good reliability and availability to users
Sometimes, cost is one component that customers complain about, especially if they compare it with some of its competitors. Zscaler's pricing seems to be a bit on the higher side. I think the pricing model is also something that the tool can probably look into to optimize or improve for the customer so that it can be a competitive tool commercially. The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas.
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Comparison Review

it_user216600 - PeerSpot reviewer
Jan 3, 2016
Sophos UTM vs. Fortinet FortiGate
I have used both Sophos and Fortinet products in production and I have found the Sophos UTM appliances (hardware and virtual) to be a better fit most of the time -- with a few caveats which I will touch on below. In both instances, the transition from TMG will be mostly straightforward. The main…
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
11%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
13%
Financial Services Firm
9%
Manufacturing Company
8%
Government
7%
Computer Software Company
15%
Manufacturing Company
11%
Educational Organization
10%
Financial Services Firm
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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We researched Netskope but ultimately chose Zscaler. Netskope is a cloud access security broker that helps identify ...
 

Also Known As

FortiGate 60b, FortiGate 60c, FortiGate 80c, FortiGate 50b, FortiGate 200b, FortiGate 110c, FortiGate, Fortinet Firewall
Palo Alto NGFW, Palo Alto Networks Next-Generation Firewall
ZIA
 

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
SkiStar AB, Ada County, Global IT Services PSF, Southern Cross Hospitals, Verge Health, University of Portsmouth, Austrian Airlines, The Heinz Endowments
Ulster-Greene ARC, BanRegio, HDFC, Ralcorp Holdings Inc., British American Tobacco, Med America Billing Services Inc., Lanco Group, Aquafil, Telefonica, Swisscom, Brigade Group
Find out what your peers are saying about Netgate, Fortinet, OPNsense and others in Firewalls. Updated: July 2025.
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