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    Zscaler Internet Access (ZIA)

    Zscaler Internet Access (ZIA) helps secure your internet and SaaS connections by delivering a complete secure stack as a service from the cloud. By moving security to a globally distributed cloud, Zscaler brings the Internet gateway closer to the user for a faster more secure experience.

    Ratings and reviews

    4.4
    281 ratings
    6 AWS reviews
    |
    275 external reviews
    External reviews are from G2  and PeerSpot .

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    Reviews (281)
    Adam E.

    Great Security Layer and VPN for Easy Access Management

    Reviewed on Aug 02, 2026
    Review provided by G2
    What do you like best about the product?
    I like that it provides a great security layer for all the company's resources. It has a great VPN and allows for easy provision of access to company resources. I like the ability to manage access and authenticate.
    What do you dislike about the product?
    It is sometimes very buggy, I will find that the service disconnected and I can't access my resources. I have to refresh it multiple times and it takes a lot of time out of my day sometimes to debug it.
    What problems is the product solving and how is that benefiting you?
    It allows us to keep our resources and application access secure, we can provision access as needed to employees or other members. It is a big security and access tool for our organization.
    Financial Services

    Quiet, Reliable Browsing Security with Smooth Mac Integration

    Reviewed on Aug 01, 2026
    Review provided by G2
    What do you like best about the product?
    We’ve been using it in our company for a long time. It keeps our browsing secure and doesn’t nudge you much, just runs quietly in the background. Sometimes I don’t even notice whether it’s running or not. Application Integration is good with mac that we use
    What do you dislike about the product?
    Sometimes a website gets blocked by default and then needs to be unblocked by the IT team. Also, when I switch to a different network, it can take a while for Zscaler to load.
    What problems is the product solving and how is that benefiting you?
    It allows us to work securely and definitely blocks malicious websites, malware, security breaches, and any kind of phishing sites. Regardless of location, it provides secure internet access.
    Information Technology and Services

    Secure and Efficient, with Setup Complexities

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    We like Zscaler Internet Access for its cloud native security and the ease of managing web traffic from a centralized platform. It provides strong protection against malware, phishing, and other web-based threats while enforcing security policies for users regardless of their location.
    What do you dislike about the product?
    We find there could be improvements in application compatibility and simplifying policy management. More intuitive logging and troubleshooting would be helpful, and reducing latency for some users would enhance performance. The initial deployment and policy tuning can be quite complex.
    What problems is the product solving and how is that benefiting you?
    We use Zscaler Internet Access for secure remote access, replacing VPNs with Zero Trust Network Access. It reduces the attack surface, enforces granular policies, and provides strong malware protection, making it easy to manage web traffic from a centralized platform.
    Computer Software

    Zscaler Delivers Smooth SSO and Strong Zero-Trust Protection

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    We used to have zscaler for SSO single sign on in our organisation to access multiple applications using same login. It works pretty good and blocks any unauthorised sites as well. It uses ZTNA (Zero trust network access) to replace traditional virtual private networks.
    What do you dislike about the product?
    One of the things is it sometimes disconnect on its own due to poor network or if power suddenly goes off. One of the other problems is that if you have to connect to Remote Desktop then using both of them together is either not possible or your system starts lagging, so you have to keep switching.
    What problems is the product solving and how is that benefiting you?
    One of the problem it solves is SSO, you dont have to login to different portals via different passwords, just one sign on. It provides security, blocks malware, ransomware and phising attempts. It blocks any unauthorised sites when employees try to use them.
    Sunny Ram C.

    Strong, User-Friendly Security for Internet Traffic

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    Over the years, we’ve used several secure access solutions for our business, and Zscaler stands out as one of the best for securing internet traffic, whether users are on the LAN or connected via VPN. The UI is friendly and straightforward, making it easy for all our end users to navigate. We’ve been able to get strong value from features like Secure DNS, DLP (Data Loss Prevention), Secure Browsing, and Cloud Sandboxing.
    What do you dislike about the product?
    Not a major flaw - but we noticed that switching between multiple VPN networks can be cumbersome while Zscaler internet access is enabled. Custom applications using custom encryption might fail to work unless exceptions/exclusions are configured. Pricing is premium!
    What problems is the product solving and how is that benefiting you?
    Primary benefit (especially for a large enterprises) is the zero-trust security architecture - with increase in number of employees working on-the-go, and with the advent of AI enabled threats, it is highly essential to ensure that the internet security is in trusted hands.
    Brajesh G.

    Trusted Internet Security for our organization

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    The best thing about Zscaler Internet Access is that it provides secure internet access from anywhere. It helps protect users from malicious websites and other cyber threats without disrupting their work. It’s also easy to manage, and it helps keep the organization’s data safe.
    What do you dislike about the product?
    Sometimes troubleshooting takes longer because everything has to go through the cloud. The initial setup and policy configuration can also feel a bit complex, especially for new users who are just getting started.
    What problems is the product solving and how is that benefiting you?
    Zscaler Internet Access helps protect our users from unsafe websites, malware, and phishing attacks. It provides secure internet access whether employees are working in the office or remotely, which strengthens our overall security and reduces the risk of cyber threats.
    Nunna H.

    Secures Our Remote Workforce Seamlessly

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    I like how Zscaler Internet Access provides secure internet access from anywhere without compromising user experience. Its threat protection is crucial for blocking phishing attempts, malware, and suspicious websites before they impact users. I also appreciate the good visibility into internet traffic and the smoother experience for remote users. The platform's scalability and straightforward initial setup, especially with proper planning and documentation, stand out. Overall, it has significantly improved our security and visibility while providing a seamless experience for end users in our large enterprise.
    What do you dislike about the product?
    Zscaler Internet Access works well overall, but troubleshooting connectivity or policy-related issues can sometimes be time-consuming. One improvement I'd suggest is more detailed, user-friendly troubleshooting insights that clearly explain why a connection or policy is being blocked. Having faster log correlation and guided diagnostics would help administrators identify and resolve issues more efficiently.
    What problems is the product solving and how is that benefiting you?
    I use Zscaler Internet Access for secure internet access anywhere, protecting against phishing and malware. It blocks malicious sites, enforces policies, and provides traffic visibility without compromising user experience.
    Computer & Network Security

    Easy Remote Management, with Occasional Speed and Latency Dips

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    It auto-connects in the background with a minimal, straightforward setup. The admin can take care of everything remotely, which makes it easy to manage. Internet speed isn’t hampered as much as with other competitors.
    What do you dislike about the product?
    Slight to moderate decrease in latency and internet speed, intermittently. Other than than most of the time a good speed with good latency is maintained.
    What problems is the product solving and how is that benefiting you?
    Security and safe internet access, with easy deployment to all employees. Minimal setup headaches, plus the ability to make remote configuration changes. VPN speeds are maintained after connecting.
    Erick G.

    Strong Protection Against Malicious Sites and Data Loss

    Reviewed on Jul 31, 2026
    Review provided by G2
    What do you like best about the product?
    It restricts access to malicious unauthorized websites that try getting into customers information. Also it prevents data loss. I like that instead of routing internet traffic relying on local security, it forces all internet trafic pass through Zcaler's data centers making it very secured.
    What do you dislike about the product?
    The least helpful about it is that there is latency added to system due to internet traffic because it need to take its time to review whats authorized and whats not authorized that can sometimes generate certificate conflicts with tools.
    What problems is the product solving and how is that benefiting you?
    This is solving problems with unauthorized websites blocking since our customer have to go online and log in to our platforms. In the medical field restrictions are required ro keep customers information private and secured.
    Girish S.

    Fast, Easy Threat Insights : Troubleshooting Take Too Many Clicks

    Reviewed on Jul 30, 2026
    Review provided by G2
    What do you like best about the product?
    I like how Zscaler provides quick insights into threats and user activity, while keeping the rules consistent for all users. It’s simple to use and feels faster than any VPN I’ve tried.
    What do you dislike about the product?
    Certain logs and policy screens require too many clicks. When something breaks, the integration troubleshooting path is not always clear and the first level responses from support feels scripted.
    What problems is the product solving and how is that benefiting you?
    Zscaler Internet access has eliminated the VPN requirement and complexities in my organization. The centralized policy management reduced the admin cost and other overheads.