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Juniper SRX Series Firewall vs Zscaler Internet Access comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 15, 2025

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
6.9
Fortinet FortiGate delivers cost efficiency, rapid ROI, and enhanced security, reducing downtime and operational expenses for users.
Sentiment score
7.6
Juniper SRX Firewall reduces operating costs by 25% over three years with strong security and AI support, enhancing ROI.
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.
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
6.8
Fortinet FortiGate support receives mixed reviews, with praise for expertise but criticism for inconsistent response times and language barriers.
Sentiment score
7.3
Juniper SRX Series Firewall's support is praised for knowledgeable teams and effective service, though some report occasional delays.
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.
Technical support is very good.
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
7.2
Fortinet FortiGate is highly rated for scalability, accommodating growth efficiently, though hardware upgrades may be needed for expansion.
Sentiment score
7.5
The Juniper SRX Series Firewall is lauded for its scalability, adaptable to varying enterprise sizes despite some limitations.
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.
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
8.3
The Juniper SRX Series Firewall is considered highly reliable, with users experiencing minimal issues and high satisfaction ratings.
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.
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.
The solution has absolutely high stability.
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.
The Juniper SRX Series Firewall suffers from complexity, poor support, integration issues, limited features, and lacks innovation and scalability.
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.
With a better user interface and graphical interface, the Juniper SRX Series Firewall could be a superior solution compared to what it is now.
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.
Juniper SRX Firewalls offer competitive pricing, excellent value, and affordable enterprise solutions despite potential support and advanced feature costs.
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.
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.
Juniper SRX Firewall combines powerful routing, robust security, and scalability, offering excellent performance and enterprise network compatibility.
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 routing, Layer 2, 3, 4 solutions in the network layers are valuable features.
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.
 

Categories and Ranking

Fortinet FortiGate
Sponsored
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
379
Ranking in other categories
Firewalls (2nd), Software Defined WAN (SD-WAN) Solutions (1st), WAN Edge (1st)
Juniper SRX Series Firewall
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
92
Ranking in other categories
Firewalls (23rd), Unified Threat Management (UTM) (5th)
Zscaler Internet Access
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Internet Security (2nd)
 

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.
MURALI NIDAMANURI - PeerSpot reviewer
Highly scalable, user-friendly UI, and easy to maintain
We have used Juniper SRX Series Firewall in airports and multiple other industries The most valuable features of the Juniper SRX Series Firewall are the user-friendly UI, and accessing the solution is simple. The pricing strategy of the vendor could improve. I have been using Juniper SRX Series…
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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Top Industries

By visitors reading reviews
Computer Software Company
15%
Educational Organization
10%
Comms Service Provider
8%
Manufacturing Company
7%
Computer Software Company
12%
Comms Service Provider
8%
Financial Services Firm
8%
Manufacturing Company
7%
Computer Software Company
15%
Manufacturing Company
11%
Financial Services Firm
10%
Educational Organization
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 Juniper SRX?
Juniper SRX Series Firewall is a stable solution.
What is your experience regarding pricing and costs for Juniper SRX?
This is difficult to answer because I never sell these devices. As a subcontractor, I only configure them. I am not a...
What advice do you have for others considering Juniper SRX?
I absolutely recommend the Juniper SRX Series Firewall, but not for everyone. The Juniper graphical user interface is...
Which is the better security solution - Cisco Umbrella or Zscaler?
Cisco Umbrella and Zscaler Internet Access are two broad-spectrum Internet security solutions that I have tried. Zs...
Which is better, Zscaler internet access or Netsckope CASB?
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
Juniper SRX
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
7-Eleven, AARNet Pty Ltd, Allegro Networks, alltours GmbH, Apollo Hotel Papendrecht, Armstrong Atlantic State University, Atlantech Online, Availity, Bajaj Capital, Baloise Insurance, BancABC, BAS Group, Black Lotus, Blue Box, Borealis, Carilion Clinic, Catholic Health System, CATV, Champlain College, Chinas Ministry of Railways, China University of Mining and Technology (CUMT), Cloud Dynamics, CloudSeeds, Cloudwatt, CODONiS, Colt Technology Services, Cork Internet Exchange, CSS Versicherung AG, CyrusOne, Danish Crown, Deloitte Belgium, Department of Energy, Divona Telecom, DQE Communications, DreamHost, European Government Agency, Expedient, Financial Market Information Services Provider, Fluidata, Fonality, Fox Sports, Global Financial Institution, Global Investment Bank, Global Investment Company, Energy Sciences Network (ESnet), Goethe University, HEAnet, High Performance Networks Inc., Hillenbrand
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 Juniper SRX Series Firewall vs. Zscaler Internet Access and other solutions. Updated: July 2019.
861,390 professionals have used our research since 2012.