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SonicWall NSa vs Zscaler Internet Access comparison

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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
6.0
SonicWall NSa enhances efficiency and security, reducing costs for organizations, saving nearly ten lakh rupees annually.
Sentiment score
5.8
Zscaler Internet Access delivers cost savings, improved security, and productivity with ROI seen in as little as three months.
We had budgeted about thirty lakhs, but after negotiating with SonicWall NSa, we saved almost ten lakh rupees in a year.
Sr. Engineer at InterGlobe Technology Quotient
Reduced risk from web-based threats.
Soc Analyst at a tech vendor with 10,001+ employees
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.
Principle Cloud Architect at a tech services company with 11-50 employees
 

Customer Service

Sentiment score
8.5
SonicWall NSa customer support is praised for expertise but needs improvement in response times and accessibility.
Sentiment score
6.6
Zscaler Internet Access users rate support highly for skill and quick resolution, despite occasional communication issues and staff inexperience.
SonicWall support is always available to help us on an immediate basis.
Sr. Engineer at InterGlobe Technology Quotient
The support from SonicWall was excellent.
Channel Account Manager at a tech services company with 1,001-5,000 employees
SonicWall support is very helpful and responsive.
Product manger at Asbis Mediteranean
I would rate customer support at nine out of ten as they have provided responsive and knowledgeable assistance.
Soc Analyst at a tech vendor with 10,001+ employees
The technical support for Zscaler Internet Access is rated around seven out of ten due to some response time issues and the engagement model.
Principle Cloud Architect at a tech services company with 11-50 employees
Zscaler Internet Access customer service is really very good.
Product Owner at a financial services firm with 501-1,000 employees
 

Scalability Issues

Sentiment score
6.7
SonicWall NSa provides scalable options for various company sizes, though some upgrades may be necessary to meet demands.
Sentiment score
7.3
Zscaler Internet Access provides scalable, cloud-native solutions, though some regions may need local appliances due to performance issues.
I would rate its scalability around eight out of ten, meaning there are no issues, and it is pretty easy to scale.
Channel Account Manager at a tech services company with 1,001-5,000 employees
Regarding scalability, it's important to ascertain the customer's future requirements, as firewalls need to be sized according to their expected scalability, such as moving from 500 users today to more in the coming years.
CEO at Kapstone Technological Services LLP
SonicWall NSa is very supportive and capable of handling everything from smaller organizations to big enterprise-level organizations on a model-wise or configuration-wise basis.
Sr. Engineer at InterGlobe Technology Quotient
With the pricing structure that they currently have, it is only for big customers.
Product Owner at a financial services firm with 501-1,000 employees
I find Zscaler Internet Access to be highly scalable, which was one of the reasons for choosing it.
Group IT Manager at a wholesaler/distributor with 10,001+ employees
Zscaler Internet Access is scalable and has points of presence across the globe to ensure low latency and reliable connections.
Principle Cloud Architect at a tech services company with 11-50 employees
 

Stability Issues

Sentiment score
7.9
SonicWall NSa is stable and reliable, though some firmware and configuration issues require occasional technical support.
Sentiment score
7.4
Zscaler Internet Access is stable with high performance, minimal issues, swift outage resolutions, and effective global failover mechanisms.
Configuration changes have been made that have reduced that latency.
Sr. Engineer at InterGlobe Technology Quotient
The stability of SonicWall NSA is quite good.
Channel Account Manager at a tech services company with 1,001-5,000 employees
Zscaler Internet Access is stable and capable of building resilient architectures.
Principle Cloud Architect at a tech services company with 11-50 employees
I have not faced any major outages or downtime with Zscaler Internet Access; it is stable in our environment.
Soc Analyst at a tech vendor with 10,001+ employees
Zscaler Internet Access is very stable, and I would rate its stability as nine out of ten.
Group IT Manager at a wholesaler/distributor with 10,001+ employees
 

Room For Improvement

SonicWall NSa faces challenges with its GUI, VPN, outdated technology, pricey nature, and support responsiveness, requiring enhancements.
Zscaler Internet Access needs better access control, integration, scalability, user interface, reporting, support, and pricing improvements.
More details in the analytical tools offered would be appreciated since it is not yet mature.
Channel Account Manager at a tech services company with 1,001-5,000 employees
At those times, the CPU spikes considerably, and due to that, the firewall response becomes slow.
Sr. Engineer at InterGlobe Technology Quotient
There are some aspects of the dashboard configuration or customization that could be improved.
Product manger at Asbis Mediteranean
The response time and engagement model for technical support could be improved to handle complex outages more efficiently.
Principle Cloud Architect at a tech services company with 11-50 employees
In future updates, I would like to see some of the features bundled into the existing product set, perhaps more AI features and a refreshed interface.
Cyber Security Architect at a manufacturing company with 1,001-5,000 employees
Zscaler Internet Access has introduced AI control for tools such as ChatGPT, providing options to restrict to text-only input without file or image uploads through CASB restriction controls.
Associate Vice President at Novac Technology Solutions
 

Setup Cost

SonicWall NSa offers competitive pricing and value; however, advanced feature fees may challenge companies with tight IT budgets.
Zscaler Internet Access is costly but valued for its scalability, global control, and extensive cloud security features.
SonicWall is much cheaper compared to Fortinet, particularly regarding renewal and licensing costs.
Channel Account Manager at a tech services company with 1,001-5,000 employees
I would rate the price of the product as seven out of ten.
Product manger at Asbis Mediteranean
Zscaler Internet Access is recognized as an expensive solution.
Group IT Manager at a wholesaler/distributor with 10,001+ employees
Zscaler Internet Access is less expensive than competitors like Palo Alto, offering a premium service justified by security enhancements and cost-effective scalability.
Principle Cloud Architect at a tech services company with 11-50 employees
Of course, it is an expensive product.
Product Owner at a financial services firm with 501-1,000 employees
 

Valuable Features

SonicWall NSa features VPN, deep inspection, user-friendly interface, threat protection, and scalable security for enhanced network protection.
Zscaler Internet Access offers secure web gateway, scalability, low latency, policy controls, and advanced threat protection for organizations.
Real-time deep memory inspection is very helpful and has had a positive impact on our security posture.
Channel Account Manager at a tech services company with 1,001-5,000 employees
SonicWall NSA's most valuable features are its SD-WAN and a system RTBI that blocks all attacks.
Product manger at Asbis Mediteranean
We were the only organization that remained secure with a zero infection rate.
Sr. Engineer at InterGlobe Technology Quotient
It prevents numerous web attacks through its AI/ML incorporated capability which identifies malware, threats, and viruses.
Associate Vice President at Novac Technology Solutions
Zscaler Internet Access has positively impacted my organization by reducing the dependency on on-premises hardware and improving security posture, enabling faster user onboarding, and providing better performance for remote users.
Senior Network Engineer at Anthology
It automatically blocks access to known malicious websites and phishing or risky websites before users reach them, thereby reducing the number of security incidents we have to investigate.
Soc Analyst at a tech vendor with 10,001+ employees
 

Categories and Ranking

SonicWall NSa
Average Rating
7.8
Reviews Sentiment
7.1
Number of Reviews
89
Ranking in other categories
Firewalls (25th)
Zscaler Internet Access
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
60
Ranking in other categories
Secure Web Gateways (SWG) (3rd), Internet Security (2nd)
 

Mindshare comparison

SonicWall NSa and Zscaler Internet Access aren’t in the same category and serve different purposes. SonicWall NSa is designed for Firewalls and holds a mindshare of 1.4%, down 1.7% compared to last year.
Zscaler Internet Access, on the other hand, focuses on Secure Web Gateways (SWG), holds 9.7% mindshare, down 14.3% since last year.
Firewalls Mindshare Distribution
ProductMindshare (%)
SonicWall NSa1.4%
Fortinet FortiGate13.3%
Cisco Secure Firewall7.8%
Other77.5%
Firewalls
Secure Web Gateways (SWG) Mindshare Distribution
ProductMindshare (%)
Zscaler Internet Access9.7%
Cisco Umbrella9.3%
Prisma Access by Palo Alto Networks7.1%
Other73.9%
Secure Web Gateways (SWG)
 

Featured Reviews

Mahendra Basera - PeerSpot reviewer
Sr. Engineer at InterGlobe Technology Quotient
Automated breach prevention has protected critical workloads and keeps external attacks blocked
I am familiar with SonicWall TZ. I have done a POC of TZ but I have not worked extensively with it. I have worked with the 2600 firewall and then the 3600. These are the models which we have worked with.SonicWall NSa was an on-premises solution. The two firewalls which were in production, in the data center and on the LAN side, were both on-premises solutions. We had a pre-decided budget under which we would purchase the firewall. All parameters including security, high availability, and budget concerns were covered with SonicWall NSa being implemented at that time. SonicWall NSa is a user-friendly product that is easy to configure, and it is easy for network personnel and firewall administrators to work with. Even the L1 team captured and learned this firewall effectively, helping us resolve all parameters related to high availability firewalls within budget-friendly costs. I rate this review a nine out of ten.
VikasTiwari - PeerSpot reviewer
Senior Network Engineer at Anthology
Cloud security has transformed remote access and now supports zero trust for all users
The best features Zscaler Internet Access offers are Secure Web Gateway, URL filtering, SSL inspections, and policy-based access control. I find myself relying on Secure Web Gateway, URL filtering, SSL inspection, and policy-based access control the most because these are the main and top-most features I use regularly. Zscaler Internet Access has all of these types of features for securing all internet access and web inspections, allowing me to control all traffic through these features. Zscaler Internet Access features include a Secure Web Gateway for URL filtering, file type control, and inline SSL inspections. The second feature is a cloud firewall with Layer 3 to Layer 7 filtering control and stateful inspections. No hardware inspection or hardware firewall is required. I can also perform segmentations by users, location, and application. There is a cloud CASB solution available as well. Additionally, there is an advanced threat protection feature with signature-based behavioral detections, inline IPS, and zero-day threat protections. The cloud sandboxing solution scans unknown files and provides machine learning-based verdicts to prevent zero-day malware delivery in my environment. There is also a DNS security feature that provides DNS tunneling detections, malicious domain controls, and faster threat containment at the DNS layer. The data protection feature includes inline DLP and CASB-style cloud app control, data sovereignty enforcement, and browser isolation, which executes risky sites in isolated cloud browsers and prevents endpoint compromises. Zscaler Internet Access has positively impacted my organization by reducing the dependency on on-premises hardware and improving security posture, enabling faster user onboarding, and providing better performance for remote users. It has resulted in a drop in security incidents related to web threats and improved visibility into user activity. An area for improvement includes fine-grained troubleshooting tools, better policy simulations, and optimizations around initial configuration complexity.
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Top Industries

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

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business56
Midsize Enterprise21
Large Enterprise24
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise9
Large Enterprise39
 

Questions from the Community

What is your experience regarding pricing and costs for SonicWall NSa?
I am overall satisfied with everything, including the price.
What needs improvement with SonicWall NSa?
The CPU configuration for SonicWall NSa, based on my experience, is average. It should be increased somewhat because we are not always aware of the load under varying organizational working standar...
What is your primary use case for SonicWall NSa?
We have SonicWall NSa models including NSA 2600, NSA 3600, and 6600 firewalls in our environment.We have used the Deep Packet Inspection feature of SonicWall NSa. We adopted a security package that...
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. Zscaler Internet Access is a good option for carrying out multiple security functi...
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 and manage cloud applications, protecting your sensitive data from exfiltration....
What is your experience regarding pricing and costs for Zscaler Internet Access?
We have not purchased Zscaler Internet Access through the AWS Marketplace; the licensing process was handled separately by our financial and management team.
 

Also Known As

NSA 250M, NSA 2600, NSA 3600, NSA 4600, NSA 5600, Dell SonicWALL NSA
ZIA
 

Overview

 

Sample Customers

Orange County Rescue Mission, First Source, Michaels & Taylor, Green Clinic Health System, Aspire Chiltern Skills and Enterprise Centre, UnitedStack, Faith Lutheran College Redlands, Celtic Manor Resort, Star Kay White, Air Works, Unimat Life, NHS Yorkshire and Humber Commissioning Support (YHCS), Hutt City Council, Mato Grosso do Sul, Nspyre
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 Fortinet, Netgate, Cisco and others in Firewalls. Updated: September 2026.
912,788 professionals have used our research since 2012.