What I like most about Zscaler Internet Access is its cloud-native, Zero Trust approach to securing internet access. It provides secure, policy-based access from any location without relying on traditional VPNs. Features like URL filtering, SSL inspection, cloud firewall, and centralized policy management improve security, simplify administration, and enhance visibility while delivering a seamless user experience. Review collected by and hosted on G2.com.

One drawback of Zscaler Internet Access is that troubleshooting can be challenging because traffic is inspected and routed through the cloud, making it harder to quickly identify the root cause of connectivity issues. SSL inspection may also cause compatibility issues with some applications if not configured properly. Additionally, creating and managing complex policies requires a good understanding of the platform, and policy changes can sometimes take time to validate and test. Overall, these are manageable with proper planning and administration. Review collected by and hosted on G2.com.

What I like best about Zscaler Internet Access (ZIA) is how it delivers exceptional performance through fast, direct-to-cloud connectivity and seamless SSL decryption, all while remaining virtually invisible to employees via a lightweight, frictionless end-user UI/UX. The platform features robust, ecosystem-wide integrations with our existing IdP and EDR tools (such as Okta and CrowdStrike), allowing us to seamlessly leverage ZIA's advanced AI and threat intelligence for proactive zero-day sandboxing and automated data protection. While the initial onboarding and support phase requires strategic planning to transition away from legacy routing, ZIA's premium pricing ultimately delivers a massive ROI by completely consolidating our security stack, eliminating costly hardware maintenance, and drastically reducing administrative overhead. Review collected by and hosted on G2.com.

What I dislike most about Zscaler Internet Access (ZIA) is the steep learning curve and fragmented nature of the admin UI/UX, which makes complex policy management cumbersome. While its security capabilities are strong, the deep SSL inspection frequently breaks proprietary or legacy applications, requiring tedious configuration bypasses that impact operational performance. Additionally, the initial onboarding is highly complex, and standard customer support can be slow to resolve intricate routing issues. Finally, ZIA sits at a very premium pricing point; the licensing feels rigid, and advanced AI and threat intelligence modules require expensive add-on tiers, making the total cost of ownership quite high." Review collected by and hosted on G2.com.

In my company we have it set it up so it automatically opens, so in 3 years working with it I believe it requiered my attention maybe only twice, so it's ready to use all the time which I'm very grateful Review collected by and hosted on G2.com.

I don’t think there’s anything I dislike. If I could improve one thing, it would be having clearer instructions on where everything is and why it’s there, so it’s simpler for users to find what they need and understand what it’s for. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

Cloud native architecture and zero trust security

No meed to deploy or maintain on premises web security

User recieve same security whether working from home or office Review collected by and hosted on G2.com.

The large number of security policies can make initial setup and troubleshooting challenging.

Some applications that use certificate pinning or custom encryption may not work correctly until exclusions are configured. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

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. Review collected by and hosted on G2.com.

What I like most about Zscaler Internet Access is how little I have to think about it once it's up and running. That's probably the biggest compliment I can give any security product. It quietly does its job in the background without constantly getting in the way, which makes day-to-day work a lot less frustrating.

I also appreciate that it gives me confidence when working from different locations or on different networks. Instead of wondering whether I'm exposed on public Wi-Fi or dealing with complicated VPN routines, it just feels like there's a consistent layer of protection wherever I am. It's one of those tools that doesn't try to impress you with flashy features—it earns points by being dependable, and that's something I value more than anything. Review collected by and hosted on G2.com.

If I had to pick a downside, it's that when something goes wrong, it can take a while to figure out where the issue actually is. Sometimes it's not immediately obvious whether it's Zscaler, the network, or the application itself, which can turn what should be a quick fix into a bit of a detective job.

I also feel like some settings and policies aren't always as intuitive as they could be. Once you get used to the platform it makes more sense, but there is definitely a learning curve. Every now and then you'll run into a situation where you have to dig through documentation or experiment a little before finding the answer, and that can be frustrating when you're just trying to get back to work. Review collected by and hosted on G2.com.

The cloud-native architecture eliminates the need for on-premise hardware, which reduced our deployment time from weeks to hours. The SSL inspection capability catches threats in encrypted traffic without noticeable latency — our page load times stayed consistent even after enabling full inspection. The centralized admin portal lets me apply granular URL filtering and bandwidth policies across all locations in a single policy push, saving roughly 2-3 hours per week compared to managing individual firewalls. An unexpected benefit: the real-time logging and dashboard gave our team visibility into shadow IT apps we didn't know employees were using, which helped us proactively address data leakage risks. Review collected by and hosted on G2.com.

Honestly, the certificate rollout for BYOD devices was a pain. Getting root certs pushed to unmanaged endpoints took way more workarounds than it should have and added about a week to our go live. Troubleshooting is another sore spot. When something breaks, the logs don't make it easy to figure out if it's a policy conflict, a PAC file issue, or a tunnel timeout. More often than not, I end up raising a support ticket just to isolate the problem. The admin console also gets noticeably slow when you're working with large rule sets or pulling reports older than 30 days. And pricing? Good luck figuring out your per user cost across ZIA, ZPA, and ZDX without going back and forth with the sales team. A self service calculator would go a long way. Review collected by and hosted on G2.com.

Frm my experience, I'd say the best part of zscaler internet access is that it's ease of use. Once it is active, it runs in the background & provides a secure access to websites and Applications in my work pc. As an end user I don't need to manage complex settings, which makes it's convenient. Review collected by and hosted on G2.com.

Zscaler works generally well in background, but the application provides a very little to no information when a website is restricted or a connection fails. I may like if more detailed notification and simple troubleshooting guide help users understand the issue well, before reaching to IT support. Review collected by and hosted on G2.com.