Zscaler Internet Access Reviews

Name: Zscaler Internet Access
Brand: Zscaler
Rating: 4.2 (59 reviews)

Vendor: Zscaler

4.2 out of 5

59 reviews
98% willing to recommend

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What is Zscaler Internet Access?

Zscaler Internet Access provides internet security through cloud-native architecture, ensuring threat protection and traffic management without relying on traditional VPNs and firewalls.

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Zscaler Internet Access is the #2 ranked solution in top Internet Security solutions and #3 ranked solution in top Web Security Gateways. PeerSpot users give Zscaler Internet Access an average rating of 8.4 out of 10. Zscaler Internet Access is most commonly compared to Fortinet FortiGate: Zscaler Internet Access vs Fortinet FortiGate. Zscaler Internet Access is popular among the large enterprise segment, accounting for 55% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a computer software company, accounting for 11% of all views.

Buyer's Guide

Zscaler Internet Access

April 2026

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Featured Zscaler Internet Access reviews

Mohan Janarthanan

Associate Vice President at Novac Technology Solutions

The best features Zscaler Internet Access offers include application control, tenant segregation, and PoP center regions which have low availability zones. The internet access is very successful and bandwidth speed is excellent. It also has application-based control, URL-based control, and SSL inspection capabilities, which are very useful. Additionally, the in-depth CASB segregation is very beneficial to us. One unique feature I found helpful is the tenant level restrictions, which we use to only access our organization's tenant level mail IDs, drives, and specific tenant level access while restricting public access. Zscaler Internet Access has positively impacted our organization as we have noticed substantial outputs and income. It has improved our security environment control and endpoint protection. It prevents numerous web attacks through its AI/ML incorporated capability which identifies malware, threats, and viruses. It has a toggle button to enable features entirely at the tenant level for all users onboarded into Zscaler Internet Access, resulting in much better outcomes.

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VikasTiwari

Senior Network Engineer at Anthology

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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Ferdi Haider

Product Owner at a financial services firm with 501-1,000 employees

We already have complementary solutions that we are using. We are using the partnership program. I have been in the security field for around 30 years, coming from the network perimeter security area. I moved to the security part and there I am a product owner from Zscaler Internet Access. I would not think it is for smaller companies, but it is currently coming from the other side. It is coming more from the traditional firewalling side and going more and more into the cloud area. It is difficult to provide a deep view on that. I know it only from the traditional firewall area and there you had to deal with all these appliances. I gave this review a rating of nine out of ten.

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Zscaler Internet Access mindshare

Product category:

As of April 2026, the mindshare of Zscaler Internet Access in the Secure Web Gateways (SWG) category stands at 10.9%, down from 15.1% compared to the previous year, according to calculations based on PeerSpot user engagement data.

Secure Web Gateways (SWG) Mindshare Distribution
Product	Mindshare (%)
Zscaler Internet Access	10.9%
Cisco Umbrella	10.9%
Prisma Access by Palo Alto Networks	7.9%
Other	70.3%

Secure Web Gateways (SWG)

PeerResearch reports based on Zscaler Internet Access reviews

Type	Title	Date
Category	Secure Web Gateways (SWG)	Apr 27, 2026	Download
Product	Reviews, tips, and advice from real users	Apr 27, 2026	Download
Comparison	Zscaler Internet Access vs Cisco Umbrella	Apr 27, 2026	Download
Comparison	Zscaler Internet Access vs Fortinet FortiGate	Apr 27, 2026	Download
Comparison	Zscaler Internet Access vs Prisma Access by Palo Alto Networks	Apr 27, 2026	Download

Valuable Features

Zscaler Internet Access offers valuable features such as URL filtering, SSL inspection, data loss prevention, and secure web gateways. Its cloud-native architecture ensures high performance and easy scalability. It excels in threat protection and application control, providing robust security without impacting speed. Users benefit from simplified deployment and intuitive management. It enhances visibility into internet activity, enabling effective security control across remote access, making it a preferred choice among enterprises.

"The most valuable feature of Zscaler Internet Access is that it is a consolidated solution, it comes with many features, such as DLP."
"Zscaler covers all the features needed to replace a VPN or proxy solution; they are good, and they've been on the market for 15 years now, so they are mature enough."
"The most valuable features of Zscaler Internet Access are it's on the cloud, high network performance, and the interception of users is very easy."

Room for Improvement

Zscaler Internet Access requires better integration with applications and improved reporting features. Centralized authentication and user-friendly interfaces need enhancement. Technical support and training should be expanded. Performance and pricing are concerns, alongside issues with proxy IP detection. Enhancements in DLP and API documentation are needed, and faster admin console access is suggested. Multilingual support for regions like Africa and the Czech Republic is requested, and integration with more ISPs and advanced AI features is desired.

"Zscaler Internet Access could improve by adding a VPN feature."
"The license is per user, and there's a minimum license per user per year. It's costly if you compare it to the traditional solutions like Symantec or Bluecoat."
"Zscaler Internet Access can improve by having more option for filtering policy which is currently only ip based (location policy)."

ROI

Zscaler Internet Access has helped organizations save costs by eliminating legacy hardware and reducing management time. The return is often observed within a few months for enterprises and SMBs, with savings on infrastructure and improved security measures. Many report substantial reductions in hardware expenses and staffing costs. The service enhances security and value in challenging markets, such as South Africa, even though some find the return not as strong due to currency depreciation. Overall, organizations noticed a positive financial impact.

Pricing

Enterprise users generally find Zscaler Internet Access to be costly, particularly when compared to traditional solutions like Fortinet, Symantec, or Palo Alto. The service follows a subscription model based on user count, which can include additional fees for certain features. While there's no extra cost beyond the standard licensing, its pricing is still considered high. Despite this, many users acknowledge that the service provides substantial value due to its comprehensive security features and global coverage.

"Price-wise, the tool is reasonable compared to the other products in the market but it is not a very low-priced tool. The solution does provide value for money."
"The tool is moderately priced."
"If we need any extra features, the price will increase."

Popular Use Cases

Zscaler Internet Access is primarily utilized for secure internet traffic management, web security, and remote workforce protection. Organizations employ it to safeguard against malware, control bandwidth, and ensure connectivity for roaming users. It integrates with SD-WAN, offers SSL inspection, and provides role-based access controls. Organizations use it for endpoint security, URL filtering, and VPN replacement, enhancing user safety across diverse locations, including home offices, remote branches, and global settings.

Service and Support

Customers find Zscaler Internet Access' support team responsive and often effective, earning high ratings for expertise and speed. Although many users acknowledge room for improvement, especially in addressing complex issues and consistency of responses, ratings frequently range from seven to eight out of ten. Some experience delays or rescheduling in support interactions. Users appreciate dedicated engineers and robust technical assistance while expressing a need for more comprehensive online resources or knowledge bases.

Deployment

The initial setup of Zscaler Internet Access is generally straightforward. Many users find it easy, especially those familiar with firewall technology. The process can be swift, often taking a few hours to a couple of weeks, depending on organizational size and cloud-native status. Complications may arise with large-scale deployments or complex requirements. Adequate resources and team preparation can simplify implementation, while managed services or consultants often aid smoother transitions.

Scalability

Zscaler Internet Access is widely noted for its scalability, easily accommodating expansion from a small number to thousands of users, thanks to its cloud-based model. Users appreciate its flexibility and lack of hardware constraints. Some organizations report highly scalable experiences with ratings from seven to ten out of ten. However, some still encounter challenges related to bandwidth limitations and data center issues, which varies among different clients and geographical locations.

Stability

Zscaler Internet Access demonstrates strong reliability, with most users noting stable performance. Many report no issues or outages, rating stability between eight and nine out of ten. Some mention slight challenges in specific regions, such as speed concerns or resource limitations due to demand, but these do not majorly affect its reputation for stability. Global presence and robust architecture further minimize latency and maintain continuous service, enhancing confidence in its reliability.

These insights are based on the in-depth reviews provided by peers to help you make a better buying decision.

Download our Zscaler Internet Access Buyer's Guide for additional reliable information.

Review data by company size

By reviewers
Company Size	Count
Small Business	14
Midsize Enterprise	9
Large Enterprise	27

By reviewers

By visitors reading reviews
Company Size	Count
Small Business	447
Midsize Enterprise	263
Large Enterprise	861

By visitors reading reviews

Top industries

By visitors reading reviews

Computer Software Company

11%

Financial Services Firm

11%

Manufacturing Company

11%

Comms Service Provider

Government

Construction Company

Healthcare Company

Retailer

University

Insurance Company

Outsourcing Company

Real Estate/Law Firm

Educational Organization

Energy/Utilities Company

Media Company

Legal Firm

Non Profit

Performing Arts

Marketing Services Firm

Transportation Company

Wholesaler/Distributor

Hospitality Company

Consumer Goods Company

Logistics Company

Aerospace/Defense Firm

Recreational Facilities/Services Company

Pharma/Biotech Company

Mining And Metals Company

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Learn more about Zscaler Internet Access

It enhances security by offering features such as CASB and DLP. With its cloud-native proxy architecture, it facilitates seamless security with reduced latency and high availability. Organizations value the scalability and centralized policy management, integrating seamlessly with existing systems for remote work. It ensures secure traffic management by delivering advanced threat protection and support for applications through SSL inspection and sandboxing. Enhanced measures for DLP, better integration with tools like MFA, and optimized reporting are areas for growth.

What are the key features?

Website Filtering: Controls access to harmful sites to protect users.
SSL Inspection: Shields against threats bypassing traditional defenses.
Cloud Sandbox: Provides advanced threat protection through testing.
CASB: Offers cloud application visibility and security enforcement.

What benefits should users seek?

Scalability: Easily adjusts to growing requirements without manual intervention.
Centralized Management: Simplifies policy implementation across locations.
Seamless Integration: Reduces need for traditional VPNs by integrating with remote infrastructure.

Many industries leverage Zscaler Internet Access for securing internet traffic and safeguarding against threats like malware and DDoS attacks. It is integral as a secure web gateway to fulfill data loss prevention, bandwidth control, and filtering needs, allowing remote users robust access and protection globally. Companies employ it alongside existing tools for proper security and policy enforcement.

Zscaler Internet Access was previously known as ZIA.

Zscaler Internet Access customers

Ulster-Greene ARC, BanRegio, HDFC, Ralcorp Holdings Inc., British American Tobacco, Med America Billing Services Inc., Lanco Group, Aquafil, Telefonica, Swisscom, Brigade Group

Product Categories

Secure Web Gateways (SWG)

Internet Security

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Zscaler Internet Access Reviews Summary
Author info	Rating	Review Summary
Associate Vice President at Novac Technology Solutions	4.5	I've used Zscaler Internet Access for over three years to secure endpoints and control web access, finding its application and CASB features effective, though the admin console could be faster; overall, it’s improved our security significantly.
Senior Network Engineer at Anthology	4.5	I've used Zscaler Internet Access for years to secure remote users with cloud-based protection, valuing features like SSL inspection and URL filtering, though setup can be complex. It's reliable, scalable, and aligns well with Zero Trust strategies.
Product Owner at a financial services firm with 501-1,000 employees	4.5	I've used and sold Zscaler Internet Access, finding it stable, easy to deploy, and offering strong visibility, though it's expensive and best suited for large companies, with onboarding and market adaptation areas needing improvement.
Sr. Cloud Security Architect at a tech services company with 11-50 employees	4.0	We use Zscaler Internet Access to secure internet-bound traffic and enhance data loss prevention. Its robust features improve security and operational efficiency, offering significant cost savings. However, integration with other solutions and technical support response time need improvement.
Cloud Advisory Senior Manager at a tech consulting company with 10,001+ employees	4.0	I find Zscaler Internet Access scalable, stable, and well-suited for complex use cases across sectors, though high-bandwidth demands can be challenging. Its hybrid integration, strong security, and effective support make it a reliable, negotiably priced solution.
Consultant at Allwyn	4.0	Zscaler Internet Access enhances our security posture through role-based access control and SSL inspection, while reducing costs and infrastructure needs. However, improvements are needed in traffic categorization and deployment processes to better manage exceptions and differentiate network types.
Group IT Manager at a wholesaler/distributor with 10,001+ employees	4.5	I use Zscaler Internet Access in my organization for secure web browsing and traffic filtering. The analytics and SSL inspection are invaluable for network visibility and data security. However, integration with internal monitoring systems could be more streamlined.
Cyber Security Architect at a manufacturing company with 1,001-5,000 employees	4.0	I’ve used Zscaler Internet Access for three years to secure remote and on-prem users. It offers strong security, useful logging, and SSL inspection, though setup took three months and could improve with simpler configurations and better pricing.

Title	Rating	Mindshare	Recommending
Fortinet FortiGate	4.2	6.7%	92%	592 interviews Add to research
iboss	4.2	2.8%	95%	21 interviews Add to research

Zscaler Internet Access Reviews

What is Zscaler Internet Access?

Featured Zscaler Internet Access reviews

Zscaler Internet Access mindshare

PeerResearch reports based on Zscaler Internet Access reviews

Valuable Features

Room for Improvement

ROI

Pricing

Popular Use Cases

Service and Support

Deployment

Scalability

Stability

Review data by company size

Top industries

Compare Zscaler Internet Access with alternative products

Learn more about Zscaler Internet Access

Zscaler Internet Access customers

Related questions

Product Categories

Popular Comparisons