Based on 154 verified reviews published in the last 18 months
TrustRadius Community Insights are summaries of user sentiment data from TrustRadius reviews and, when relevant, HG Insights data.
Overview
Synthesised from 154 reviews | Last Published May 26, 2026
Zscaler Internet Access (ZIA) is widely adopted by organizations to secure internet access and enforce web policies for their users, often replacing traditional VPNs and hardware appliances. It's frequently used to extend zero-trust models to remote workforces and serves as a central internet proxy. In TrustRadius reviews, its robust SSL inspection, comprehensive threat protection against malware and phishing, and granular URL filtering capabilities are consistently highlighted. These features enable consistent policy application across diverse locations and user types.
Reviewers also note ZIA's positive impact on business objectives through enhanced security posture and significant cost reductions by consolidating security infrastructure. However, the user interface is a recurring concern, with 8% of reviewers finding it complex, clunky, or dated, and logging features are described as lacking detail and ease of navigation. Despite these UI and logging challenges, the overall sentiment indicates ZIA effectively secures internet access and streamlines security operations.
Pros
Robust SSL inspection for encrypted traffic
Comprehensive threat protection against malware and phishing
Granular URL and content filtering capabilities
Flexible policy management for consistent application
Significant cost reduction by eliminating hardware appliances
Cons
User interface is complex, clunky, or dated
Logging features are difficult to navigate and lack detail
Performance issues, including slow GUI and log loading
Inconsistent console experience across Zscaler products
Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) are our main source of protection for our office and mobile workforce. With the ability to have consistent policies regardless of the users location, makes the management and ensurance of the efficacy of our users being protected on many levels.
With many 3rd-party integrations also being deployed within Zscaler, we are able to leverage additional capabilities with other security technologies we have in place.
Overall Zscaler Internet Access as a critical part of our infrastructure has provided us with peace of mind that we are able to provide the consistent level of security posture to our users.
Pros
Consitent policy across all users regardless of location
Inline SSL inspection for all traffic
Ability to scale very easily
Cons
More direct 3rd-party integrations with major security vendors
Ability to save queries when review logs
More intuiitve filtering/sorting for logs
Likelihood to Recommend
Large orginiazations with distributed users/locations that require consistent policy enforcement both for on/prem as well as remote access.
Where Zscaler Internet Access may fall short would be for those smaller companies which would still benefit from Zscaler Internet Access, however the justification may be a harder sell to deploy.
Cloud base security by acting as a secure gateway. We have deployed Zscaler Internet Access through our environment of 30 users and also deploying to acquisitions which adds another 30K users all in one tenant.
Pros
Secure internet gateway
Provides great logs for investigation/troubleshooting
Efficient admin portal architecture for management
Web filtering
Advanced threat protection
Support is superb
One client for additional features like ZDX which simplifies deployments
reduce the amount of firewall need it on each location. easy to manage. policy easy to maintained. logging the locate the issue easy and fast. it has good features like SSL inspection, DLP, Logs, web filtering. all in one place and easy to manage and admin. scalable and resilient. redundant with almost 100% up time.
Pros
web filtering
SSL inspection
DLP
device posturing
Cons
user interface (GUI)
Likelihood to Recommend
support very responsive
VU
Verified User
Administrator in Engineering (5001-10,000 employees)
traffic visibility, SSL inspection, easy deployment and management of policies, device posture, reporting, vulnerability control and compliance. use of a modern technologies to reduce the complexity of that previous system with the combination of Zscaler private access and ZDX.
My team uses it to block data egress attempts as part of the data loss prevention program. We look to prevent users from uploading data to unsanctioned websites, and to prevent users from being compromised by c2's or other malicious sites. Additionally we monitor user activity to sanctioned sites to ensure compliance.
Pros
Blocking malicious sites
URL filtering and categorization
Real time anaytics
Cons
Policy testing environment to pretest
Rule limitation and limits
Limits on engines
Likelihood to Recommend
It is good for large and medium businesses. Not sure if application to smaller businesses.
We use Zscaler Internet Access (ZIA) to protect internet access for users, servers and IOT across sites around the world. We are able to use posture checks and group membership to provide specific access to online applications. We are also able to enable strong DLP controls with all traffic passing the Zscaler infrastructure. The gives our organization rich visibility into the traffic flows and provides protection across a wide spectrum.
Pros
Provides access by group to internet sites or categories
Provides DLP on data leaving the organization
Provides coaching for sites that may be questionable without a full block
Cons
Continue enhancing the API/Terraform provider
Provide API access into the client to force a policy update
Likelihood to Recommend
Zscaler Internet Access(ZIA) is great for user access since there is a client on each machine. This provides the needed protections for when people are on their home network so they cannot move data to personal devices. It also blocks risky categories and allows for integration with in-house developed systems to block sites.
We use Zscaler Internet Access (ZIA) for internet proxy and protection for all of our enterprise users. We use this to ensure users are not accessing sites they should not be and to allow secure access to some internal sites that are needed by other users. This covers approx 92k users for Koch
Pros
internet proxy and control
filtering to ensure the users have appropriate access
advanced security for user that are not on prem
Cons
consistent dashboard with other products
Likelihood to Recommend
Zscaler Internet Access(ZIA) is good at the user access control for internet access, we will be looking at how this can assist with server and device workflows. combining the dashboards will make it easier to deploy .
