This product overview is based on an analysis of 154 recent reviews of Zscaler Internet Access (ZIA) across multiple dimensions of product satisfaction and competitive context. Zscaler Internet Access is primarily lauded for its security capabilities, particularly SSL inspection, which is explicitly mentioned by 12% of reviewers. The platform's broader security features are also a significant strength, cited by 10.39% of reviewers. URL filtering capabilities are appreciated by 6% of reviewers. Ease of use and management are also frequently mentioned as positive aspects, with 6.49% of reviewers highlighting this benefit, alongside general ease of use noted by 5%.

While security and usability are key strengths, the competitive landscape includes products from Palo Alto Networks, which are mentioned by 10% of reviewers as alternatives they have evaluated. These include products like Palo Alto Networks Advanced Threat Prevention, Advanced URL Filtering, Prisma Access, and Cortex Xpanse. Zscaler Private Access is also mentioned by 3% of reviewers, sometimes in conjunction with other Zscaler products. Data Loss Prevention (DLP) is also noted as a strength, although less frequently (4%).

Overall, Zscaler Internet Access is perceived positively for its robust security features and user-friendly design. However, potential buyers should be aware of alternatives like Palo Alto Networks products, which are frequently considered in the evaluation process.

Pros

Strong SSL inspection capabilities
Comprehensive security features
Effective URL filtering
Ease of use and management
Data Loss Prevention (DLP) capabilities

Cons

Faces strong competition from Palo Alto Networks products
Zscaler Private Access may be needed for comprehensive coverage, adding complexity
DLP, while present, is not as prominently praised as other security features

What other products like Zscaler Internet Access have you used or evaluated?

From 154 reviews | Last Published April 24, 2026

Summary

This analysis synthesizes 154 recent product reviews that mention alternative and competitive products evaluated alongside Zscaler Internet Access. Reviewers most frequently mention Palo Alto Networks products (10%). These co-evaluations include specific products like Palo Alto Networks Advanced Threat Prevention, Advanced URL Filtering, Prisma Access, and Cortex Xpanse. A smaller fraction of reviewers (3%) mention Zscaler Private Access, sometimes alongside other Zscaler products like Zscaler Digital Experience and Zscaler Data Protection. The relationships and distinctions between these alternatives are not elaborated upon in the reviews, but the frequency of mentions indicates their relevance in the market context.

Top Quotes

Zscaler Private Access

“Zscaler Private Access, Zscaler Digital Experience and Zid”

Palo Alto Networks Products

“Palo Alto Networks Advanced Threat Prevention”

What positive or negative impact (i.e. Return on Investment or ROI) has Zscaler Internet Access had on your overall business objectives?

From 154 reviews | Last Published April 23, 2026

Summary

This report synthesizes 154 recent reviews to assess the return on investment (ROI) and overall business impact of Zscaler Internet Access. Reviewers most frequently cite improvements to security (21%) as a primary benefit, often highlighting the creation of a more secure work environment and reduction in risk. Cost savings (9.74%) are also a notable advantage, stemming from reduced hardware needs and the replacement of VPNs. Further, reviewers appreciate the product's ease of use (8%) in terms of configuration, deployment, and management. While a majority of feedback is positive, some reviewers express mixed sentiment regarding ROI and cost savings (6.49%), citing the product's high price, while others report performance issues (4%) such as slowness and challenges with conferencing systems.

Top Quotes

ROI and Cost Savings

“The pricing of this product is very expensive so negative”

Improved visibility

“Our journey is starting but Zscaler has provided insights to user actions, specifically Shadow IT which we did not have prior to implementation”

Cost reduction

“Zscaler Internet Access has helped us reduce cost in terms of having specific hardware appliances or running around and adjusting URL filters or blocklists. You just configure your categories, configure your profiles and groups, then you go.”

Besides Zscaler Internet Access, what other software do you regularly use? How likely would you be to recommend it to a friend or colleague?

From 154 reviews | Last Published April 23, 2026

Summary

This analysis synthesizes 154 product reviews to identify software frequently used alongside Zscaler Internet Access and to gauge user recommendations. A significant portion of reviewers mention using other Zscaler products, with Zscaler Private Access and Zscaler Digital Experience being prominent (11% and 8% mention rates, respectively). Palo Alto Networks is also frequently mentioned (11%), indicating its use in conjunction with Zscaler. CrowdStrike Falcon is another notable product, appearing in 8% of the reviews. These products collectively suggest a trend of comprehensive security solutions involving multiple vendors. Mentions of Microsoft 365 and Okta are less frequent, each appearing in 3% of reviews, suggesting a smaller but still relevant user base integrating these tools with Zscaler.

Top Quotes

CrowdStrike Falcon

“CrowdStrike Falcon, Okta, Palo Alto Networks Next-Generation Firewalls - PA Series”

Microsoft 365

“Microsoft 365, ManageEngine ServiceDesk Plus”

Okta

“Palo Alto Networks Advanced Threat Prevention, Okta, Cisco 1000 Series Aggregation Services Routers (ASR 1000)”

Please provide some detailed examples of things that Zscaler Internet Access does particularly well.

From 154 reviews | Last Published April 24, 2026

Summary

This analysis synthesizes 154 recent product reviews to identify areas where Zscaler Internet Access (ZIA) performs well, according to users. A significant portion of reviewers highlight ZIA's security capabilities, with SSL inspection being a prominent feature (12% mention rate). The platform's broader security features (10.39%) and URL filtering (6%) are also frequently praised. Reviewers also appreciate the ease of use and management (6.49%), as well as the general ease of use (5%). These factors collectively contribute to a positive perception of ZIA's effectiveness and user-friendliness. Data Loss Prevention (DLP) is also noted as a strength, although less frequently (4%).

Top Quotes

Ease of Use/Management

“Allows us to globally configure policies for all offices”

Ease of Use

“the ease of use for back end users helps manege things better”

DLP

“Provides DLP on data leaving the organization”

View All Reviews

Zscaler Internet Access Reviews

183 Reviews

Zscaler Internet Access....above and beyond the competition

Rating: 10 out of 10

Incentivized

June 25, 2025

Use Cases and Deployment Scope

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.

Verified User

Engineer in Engineering (1001-5000 employees)

Vetted Review

5 years of experience

Zscaler Internet Access

Rating: 9 out of 10

June 23, 2025

Use Cases and Deployment Scope

It helps in a cloud delivered security solution. This is very fast. It helps in reliable internet , secure . we can also get a remote access. It helps to block threats. This platform monitor the sensitive data. It supports compliance with regulations like GDPR and HIPAA. It reduces the lower operational complexity and supports global scalability

Pros

It helps to blocks the thread
it prevents the data
reduces the latency
It helps real time analytics

Cons

reporting the dashboard has a limited customization
It has a limited offline functionality
for automation API is limited

Likelihood to Recommend

I am working remotely or works across different geographic locations it secure remote or hybrid workforces

Varsha Hegde

SDE1 in Information Technology at AnomaPro (11-50 employees)

Vetted Review

2 years of experience

ZIA review

Rating: 10 out of 10

Incentivized

June 20, 2025

Use Cases and Deployment Scope

We use Zscaler Internet Access (ZIA) to steer internet traffic on-prem and remote to Zscaler for web filtering protection. This helps prevents users from accessing sites they should not have access to. We also use ZIA to manage company devices as well as BYOD. Company devices cannot disable the ZCC so this ensures there is always protection on the managed device. For BYOD, users can disable the client

Pros

Web filtering protection
syncing with your AD environment
insight logs on where users are sending traffic too
Device Posture management

Cons

More features for mobile devices
Standard FW should have additional features
provide recommendations for misconfigs

Likelihood to Recommend

Zscaler is very simple to use and provides many options for different OS. Device posture management is very helpful in cases where you need to prevent users from disabling the client for managed devices. Zscaler URL filtering policy, SSL Bypass, and Categories are very simple to use.

I would recommend Zscaler to allow users to request the OTP via the client and send an automated response to the engineers to action on

Verified User

Team Lead in Information Technology (10,001+ employees)

Vetted Review

5 years of experience

Zscaler Internet Access helped me with my deployment

Rating: 8 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

Be able to filter malicious web content and allow the incident response teams to create custom web categories containing phishing, malicious, and other custom URLs. Get a single pane of glass that allows the security and the incident response teams to look at activities on devices that are both on prem, off prem, and other remote workers.

Pros

SSL decryption
Single pane of visibility
Pricing

Cons

GUI Complexity
Training availability
Ease of use

Likelihood to Recommend

Zscaler Internet Access makes deploying web filtering across the fleet quite easy, even without having an internal PKI in place. It allows security teams to quickly block threats across the fleet without expensive firewalls or edge firewalls that would ordinarily be needed in a traditional on prem deployment. That said, some of the UI could use some room for consolidation and improvement.

Verified User

Employee in Information Technology (501-1000 employees)

Vetted Review

1 year of experience

[...] overview

Rating: 8 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

we are using Zscaler Internet Access to help secure our users internet data exposure and enforce compliance to company policy. WE have had issues with staff accessing un secure sites under the pretence of trying to do work however this was not the case.

Pros

easier deployment
the reporting is great
the ease of use for back end users helps manege things better

Cons

the training material is not great
having a high level overview of all platforms under one screen would help

Likelihood to Recommend

everything appears to be great so far however I'm cautious with the product as a whole due to what feels like being promised the world. I don't have cause to believe currently the claims of function are not possible but normally if something seems to good to be true it normally is hence the reluctance to give higher until further exp

Samuel Greenhill

network engineer in Information Technology at csc global (5001-10,000 employees)

Vetted Review

1 year of experience

Zscaler Internet Access Review

Rating: 6 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

We were looking for an SSE solution to have some scalability and potentially remove on premises firewalls. With a little over 30 locations Zscaler Internet Access was brought in to provide that frame of access and attempt to make it so that the home user experience matched the on site experience.

Pros

Use of URLs which is primarily what users are utilizing when going external
NRDs being a category that you can work with
Isolation Browser works fairly well with minimal interruption.

Cons

The logs feel kind of lack luster
When issues are arising with SSL Inspection, logs show everything working despite end user experience
Could use some kind of global find functionality or something that would allow you to search the entire configuration for matching URLs and the like

Likelihood to Recommend

Zscaler Internet Access is effectively a cloud firewall. It thrives best for traveling users that need a consistent experience as the multiple Service Edges around the world will help reduce the bottleneck and latency of VPNs hosted on firewalls. Also reduces the cost to spin up small locations that wouldn't necessarily need a firewall on site for Zonal traffic (this rings true for any SSE product). However troubleshooting this tool is a bit of a beast as previously mentioned - the logs are pretty minimal and the first reaction after perusing logs is typically to get a pcap file (which used to be a last resort for Network Engineers).

Verified User

Engineer in Information Technology (5001-10,000 employees)

Vetted Review

1 year of experience

Zscaler Internet Access is cool

Rating: 10 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

We currently use Zscaler Internet Access as our web filter globally. Product addresses our internet access needs while enforcing security policy (it does the things it was built to do). In the process of building additional policies to leverage all of our current licensed modules within Zscaler Internet Access.

Pros

URL filtering
file type controls

Cons

better firewall insights
faster log analysis through analytics

Likelihood to Recommend

URL filtering, advanced fw, global remote access, policy enforced

Verified User

Administrator in Information Technology (11-50 employees)

Vetted Review

5 years of experience

Zscaler Internet Access streamlined the process

Rating: 9 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

We use it for our proxied internet services.

Pros

categorizes URLs through policy
identifies user groups with extensive access

Cons

cross platform login with other Zscaler products

Likelihood to Recommend

The transition to Zscaler Internet Access was easy and supported by our account rep throughout the process

Verified User

Analyst in Corporate (5001-10,000 employees)

Vetted Review

3 years of experience

Zscaler Internet Access is great for our company

Rating: 10 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

We use it everyday across all 40k of our users

Pros

Internet security filter
threat protection
log visibility

Cons

better canned reports

Likelihood to Recommend

Easy to deploy and keep our users safe

Verified User

Engineer in Information Technology (10,001+ employees)

Vetted Review

12 years of experience

Zscaler Internet Access

Rating: 9 out of 10

Incentivized

June 5, 2025

Use Cases and Deployment Scope

We use it for end to end client access across the globe. This was implemented during covid and was a drastic change in how operations managed security and data management, allowing us to rapidly view and manage our traffic.

Pros

split tunnel solutions
proxy and web filtering
firewall
advanced threat protection

Cons

a lot of nickle and diming

Likelihood to Recommend

Verified User

Engineer in Information Technology (10,001+ employees)

Vetted Review

5 years of experience

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