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reviewer1500507 - PeerSpot reviewer
Security Architect at a comms service provider with 201-500 employees
Real User
Inspects all your traffic so you don't get compromised
Pros and Cons
  • "Zscaler Internet Access protects using data loss prevention. If you have a CASB exposing your cloud out into the network, then Zscaler Internet Access will go ahead and control that unknown cloud application in the CASB, protecting it. There is also data detection with exact data match. This improves the data coming into your cloud so you are protecting it."
  • "An improvement would be if they could provide an out-of-the-box experience, like 20 to 30 features all ready to go. In comparison, LogRhythm offers out-of-the-box features. With Zscaler Internet Access, there is firewall IPS, multiple security services, filtering, DLP, and CASB browser isolation. These are things that all users are going to be using. However, when an administrator or architect would start building this, I would definitely need to engage professional services to help clients do it."

What is our primary use case?

You can have mobile employees who forward traffic into a Zscaler client, or you could use a PAC file. So, if users connect at the beach, a hotel, coffee shop or something outside their actual office, it will give them protection.

You can use it with a secured Internet using a web gateway to deliver to the cloud.

How has it helped my organization?

The benefits of Zscaler Internet Access are the speed of the solution and never having performance issues or limitations. The fact that none of my end users are experiencing any threats, zero-day, bots, or malware says a lot about the solution. 

Zscaler Internet Access enables the inspection of traffic, including SSLs. You want to make sure that nothing is coming in through your HTTPS traffic. For anything that is coming in that might be a threat, you want to ensure that you are using a good proxy for that. There is malicious traffic out there, so you want to make sure you are tracking and viewing that. There are a lot of threats that come through as well as a lot of programming languages, so you definitely need to inspect traffic.

It is worth it. It works. I don't need multiple alerts, because it is set up with the right policies. Definitely, it is a beneficial device which doesn't always need constant monitoring. It inspects the encrypted traffic and verifies what threats are coming in. It intercepts incoming traffic and decrypts it, then reviews it. So, why have antivirus scanning or web filtering if Zscaler can do it? It protects me from man-in-the-middle attacks as well. When you use a firewall, you have alerts and false positives, but Zscaler Internet Access pretty much decreases those errors and alerts.

There isn't congestion on your network when you are inspecting traffic with Zscaler Internet Access. 

What is most valuable?

  • The integration of the gateway that inspects all ports and protocols. So, there is threat prevention. 
  • The cloud sandbox
  • VNS security
  • Access control that will protect URL filtering and the cloud firewall. 
  • Data protection that will protect your gateway, like your CASB or your cloud DLP. The capabilities of this will point your traffic to Zscaler Cloud.

The proxy architecture is the way to go. Zscaler uses it to protect their applications on the cloud. So, if you are using Box, Office 365, or even have an end user using LinkedIn or YouTube, then it will give you updated threat updates. It will also inspect all your traffic so you don't get compromised.

Advanced Threat Protection on Zscaler Internet Access has a few functionalities. It has ways to find threats. So, if they are actually hiding, you could do an inspection of your SSL traffic. You also have DNS security in Zscaler Internet Access that will help you route suspicious command-and-control attacks as well as detect threats when it does a full inspection. 

Zscaler Internet Access protects using data loss prevention. If you have a CASB exposing your cloud out into the network, then Zscaler Internet Access will go ahead and control that unknown cloud application in the CASB, protecting it. There is also data detection with exact data match. This improves the data coming into your cloud so you are protecting it. 

It offers a Cloud Browser Isolation feature, which exfiltrates browser activities from the end user's device. This feature can eliminate our exposures on that.

I like its features because they help me eliminate firewalls. I don't need to have firewalls, SIEMs, or an IPS/IDS. So, if all my end users are remote and using Office 365, I am already protecting them because they are in the cloud. I just have to attach the security application, which makes sure that any user who is mobile or remote is protected, without spending money on other solutions.

What needs improvement?

I wish there were a lot less products to learn, because there are a lot. They just keep surprising me with new features, even in the SaaS arena, and they keep improving in every facet. We are Zscaler partners, so I got certified in two platforms, but there is a lot room for improvement. There is just too much training, where they focus a lot on protecting the Internet as everyone is moving to the cloud. I would love for the training to be shortened.

Buyer's Guide
Zscaler Internet Access
August 2025
Learn what your peers think about Zscaler Internet Access. Get advice and tips from experienced pros sharing their opinions. Updated: August 2025.
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For how long have I used the solution?

I have been exposed to it for a year.

What do I think about the stability of the solution?

My clients have never really called to tell me that stability has been an issue. Feedback has always been positive. 

What do I think about the scalability of the solution?

It is a scalable solution. It is easy to scale and secure remote users. If a company hires 100 more people, I don't think it would be a problem.

The largest environment, which I reviewed, had 2000 employees.

How are customer service and support?

I would rate their professional services or technical support as five out of five based on their experience and expertise. They know how to answer all my client's problems. They are really quick to trigger and understand the client's needs as well as be very supportive. They do very well when helping their clients.

How would you rate customer service and support?

Positive

How was the initial setup?

What I have seen when I am doing PoCs is you need some perimeters to start building this platform and integrating policies from day one. 

An improvement would be if they could provide an out-of-the-box experience, like 20 to 30 features all ready to go. In comparison, LogRhythm offers out-of-the-box features. With Zscaler Internet Access, there is firewall IPS, multiple security services, filtering, DLP, and CASB browser isolation. These are things that all users are going to be using. However, when an administrator or architect would start building this, I would definitely need to engage professional services to help clients do it.

Every customer is different. On average, it could be a two-week deployment. If you are using other devices, like Fortinet SD-WAN deployment, you definitely have to make sure your configured IPsecs are correct. You might have to review policies and your SD-WAN roles. You need to do a lot of cleaning up before you start deploying.

What about the implementation team?

We have a client who wants to start deploying the Cloud Browser Isolation feature. You can embrace this cloud platform using IPAC Files, which is just a clean way of deploying it.

I have personally worked for other vendors doing professional services as part of a professional services team. Every client decided to purchase professional services because deploying Zcaler Internet Access is too complex.

What was our ROI?

I am saving money right now because I am not using old technology, like when we had everything on-premise and in the data center. Now, I just have to direct my end users to the Zscaler file and make sure that they are connected and secure. So, I am eliminating the total cost of ownership and the headaches of on-premise devices. I am also reducing their risk by making sure that they are protected in real-time.

When I talk to clients, they mention that there is a return of investment from improving the real-time protection. There is no need anymore to buy: 

  • An antivirus
  • A third-party vendor to protect your DNS, like Cloudflare. 
  • Check Point SandBlast 
  • Symantec DLP, Forcepoint, or Netskope since you already have DLP protection. 
  • LogRhythm or Splunk for logging.

Those are the benefits. I have a lot of clients explaining this to me that this is the reason to have this solution. Zscaler Internet Access is transforming all that for web traffic security.

What's my experience with pricing, setup cost, and licensing?

The pricing is fair based on its competitive market.

Which other solutions did I evaluate?

Palo Alto's vulnerability assessment requires an on-prem solution to work with your cloud. Zscaler Internet Access has already been bundled up to provide no-hassle, free Internet network connectivity that ensures protection. When you are using Palo Alto and want to assess vulnerability in your network, you probably need to use on-prem and cloud workloads. There is no reason to do that with Zscaler Internet Access.

Zscaler Internet Access has ease of development, like minimal setups needed for connectivity. You can continue securing protection, allowing your remote users to have access to your applications. Then, it is pretty quick to set up for Zscaler Internet Access. Some companies don't have many tools, so there are no delays there. When it comes to LogRhythm, there are a lot of things that you have to deal with. You have to deal with your log server as well as setting up your authentication server, firewalls, policies, rules, and zones, then you need to get it running and customize it based on your company's needs. Because LogRhythm has 30-plus features ready to go, it can be easier and smoother to deploy. However, there will always be a couple things where you have to do some preliminary requirements before you continue.

What other advice do I have?

Overall, it is a secure platform.

I actually interviewed with Zscaler to work with them because I have been impressed with their technology overall, especially over Palo Alto Networks technology who is their competitor and has a SaaS solution as well. From the top to bottom, Zscaler Internet Access is a great security product that protects my end users and remote users in the cloud.

If you want total cost of ownership and zero-trust architecture, Zscaler is the right solution to fit the needs of any environment.

I would rate the solution as 10 out of 10.

Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
PeerSpot user
Reviewer3257 - PeerSpot reviewer
Engineer at a non-tech company with 11-50 employees
Real User
Top 20
Enhanced security and connectivity with centralized data protection and comprehensive threat inspection
Pros and Cons
  • "Zscaler offers a centralized DLP solution for web, endpoint, and email."
  • "There are many functionalities in Zscaler Internet Access that need improvements, such as an advanced firewall and logging capabilities to track calls."

What is our primary use case?

In the past, I prepared a comparative stable between Zscaler and other concurrent or alternative solutions. I saw that Zscaler has a good mark in many criteria. We use Zscaler for centralized data loss prevention (DLP) for web, endpoint, and email. It also has the capacity for SD-WAN integration, threat installation, and is easy to deploy compared to other solutions.

How has it helped my organization?

Zscaler, by offering many solutions for workload and remote workforce connectivity, has improved our organization's productivity. It leverages AI for threat intelligence and malware detection, which enhances our security measures.

What is most valuable?

Zscaler offers a centralized DLP solution for web, endpoint, and email. It also provides SD-WAN integration and an inspection feature that inspects one hundred percent of traffic, ensuring it is secure and meets our connectivity needs.

What needs improvement?

There are many functionalities in Zscaler Internet Access that need improvements, such as an advanced firewall and logging capabilities to track calls.

For how long have I used the solution?

I have been using Zscaler Internet Access for one year now.

What do I think about the stability of the solution?

The stability is rated an eight out of ten.

What do I think about the scalability of the solution?

I rate the scalability of the solution as eight or nine out of ten.

How are customer service and support?

Customer service sometimes is not helpful, with long waiting times when issues arise. However, in some cases, the support team is faster and satisfactory.

How would you rate customer service and support?

Neutral

Which solution did I use previously and why did I switch?

Before using Zscaler Internet Access, we used another solution, which secured us with a gateway.

How was the initial setup?

I'd rate the setup nine out of ten. It is a relatively easy setup process.

What was our ROI?

We have seen measurable benefits, such as improvements in security measures and productivity. However, experiences with customer service have been mixed.

What's my experience with pricing, setup cost, and licensing?

Compared to other solutions, Zscaler Internet Access is higher in cost.

What other advice do I have?

Based on my experience, I recommend Zscaler Internet Access.

I'd rate the solution nine out of ten. 

Which deployment model are you using for this solution?

Hybrid Cloud

If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?

Other
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Buyer's Guide
Zscaler Internet Access
August 2025
Learn what your peers think about Zscaler Internet Access. Get advice and tips from experienced pros sharing their opinions. Updated: August 2025.
865,670 professionals have used our research since 2012.
reviewer2539353 - PeerSpot reviewer
Senior IT Manager at a manufacturing company with 1,001-5,000 employees
Real User
Top 20
Controls doesn't affect speed and runs in the background with SSO feature
Pros and Cons
  • "Zscalar Internet Access is for Internet security, like an Internet security gateway. I like how it runs seamlessly in the background with a single sign-on. The controls you can have on devices for Internet security are good, and it doesn't impact speed wherever you're connected. Overall, I think it's very good so far."
  • "The solution's pricing is on the higher side. It would be better if it could be lower."

What is our primary use case?

We use the tool to manage all end-user traffic. It's mainly for web filtering on every device, not for backend server traffic. 

What is most valuable?

Zscalar Internet Access is for Internet security, like an Internet security gateway. I like how it runs seamlessly in the background with a single sign-on. The controls you can have on devices for Internet security are good, and it doesn't impact speed wherever you're connected. Overall, I think it's very good so far.

What needs improvement?

The solution's pricing is on the higher side. It would be better if it could be lower. 

For how long have I used the solution?

I have been using the product for a year. 

What do I think about the stability of the solution?

The product is quite stable. There were some challenges with speed and performance when connected to a different region, but once they fixed the policy and routed through our region, everything worked fine.

What do I think about the scalability of the solution?

The tool should be scalable - we have many employees, and it's covering well. I can't comment on limitations for other companies with thousands of computers.

How was the initial setup?

We pushed it through policy to all computers, so we didn't need people to do it manually. You need someone overseeing it but not heavily involved or specifically dedicated. It can be handled with other workloads.

What was our ROI?

The main reason for getting the solution was for better security, not for time or management savings. It didn't decrease effort for our security team, but it improved our overall security posture.

What other advice do I have?

I like Zscaler Internet Access. We've been using it for a while, and it's working very well. However, we're still in the early stages of identifying the full solution and requirements.

I rate it a ten out of ten. 

Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Senior Technical Writer at Cielo North America
Real User
Though the solution offers good support and stability, it needs to improve its interface
Pros and Cons
  • "Stability-wise, I rate the solution a nine and a half out of ten...The setup phase was easy."
  • "Currently, the solution's interface is not that user-friendly."

What is most valuable?

The permission settings in the solutions are the most valuable feature in the solution since it allows me to assign roles and permissions.

What needs improvement?

I am just an end-user of the solution. I can't speak on what needs improvement from an admin's perspective. The interface of the solution needs to be clear and user-friendly. Currently, the solution's interface is not that user-friendly.

Zscaler is not like Okta. Okta has a marketplace, while Zscaler doesn't have one. Zscaler needs to have a marketplace.

For how long have I used the solution?

I have been using Zscaler Internet Access for two years. I am using the solution's latest version. My company is just a customer of the solution.

What do I think about the stability of the solution?

Stability-wise, I rate the solution a nine and a half out of ten.

What do I think about the scalability of the solution?

Scalability-wise, I rate the solution an eight out of ten.

My company has 200 users using the solution.

How are customer service and support?

I rate the solution's technical support more than nine out of ten.

How would you rate customer service and support?

Positive

How was the initial setup?

I rate the setup phase a nine on a scale of one to ten, where one is difficult and ten is easy. The setup phase was easy.

The cloud is deployed on-premises.

The time taken for deployment is around fifteen minutes.

One admin person is required for deployment.

What's my experience with pricing, setup cost, and licensing?

I am not aware of the solution's pricing model since my company paid for the solution.

What other advice do I have?

I like Zscaler Internet Access a lot.

There are some sites it fails to find and block, causing such sites to get away from Zscaler Internet Access.

Overall, I rate the solution a seven out of ten.

Which deployment model are you using for this solution?

On-premises
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Mauzzam Shaikh - PeerSpot reviewer
Senior Technical Consultant at Meta Infotech Pvt Ltd
Real User
Good features and a straightforward setup but needs a better user interface
Pros and Cons
  • "The solution is stable and reliable."
  • "Technical support could be better."

What is our primary use case?

We use the solution for internet access, web-based policies, and application-based policies. It has a device posture profile, which is new. 

DNS security is in progress now. I have done the test cases in my lab, however, now we are deploying it for 30,000 users. I'm working on that project as well. Apart from that, I have worked in ZIA's firewall and DLP.

What is most valuable?

The product is simple yet has a lot of features.

It offers a straightforward setup process. Setting up the solution is simple.

The solution is stable and reliable.

Users can scale the product.

What needs improvement?

There are some flaws which I don't like. Mostly I was an engineer for the proxy. In that case, there are limitations. There are limited categories and limited URLs which we can create.

We'd like to see a more user-friendly interface. 

Technical support could be better. They should be more technical. Also, they need to ensure when you ask for help, they communicate better amongst themselves what the issue is so that customers aren't constantly repeating themselves. 

For how long have I used the solution?

I've been using the solution for about one year. 

What do I think about the stability of the solution?

It's quite stable and offers good performance. There are no bugs or glitches and it doesn't crash or freeze. It is reliable.

What do I think about the scalability of the solution?

It's scalable and easy to expand. 

We have multiple clients that use the solution. We have between 8,000 and 50,000 clients. 

How are customer service and support?

I've contacted technical support multiple times. They are okay. However, they could be better. We sometimes need more technical responses.

Often, our support person will change, and then we have to explain over and over the issue, what went wrong, and what's been done. It may take days to resolve things even if it is a simpler case due to the repetition and the fact we are changing from support staff to support staff. 

How would you rate customer service and support?

Neutral

How was the initial setup?

The solution is very straightforward and simple to set up.

Users just decide if they want to connect via desktop or remote VDI servers, and that's it. They decide on what ports and protocols they want to connect. Once that question is clear, then they just have to just create the connection between the cloud and between the enterprise. After that, it's all about the configuration once you are done on the portal.

What's my experience with pricing, setup cost, and licensing?

I don't deal with the licensing aspect. I can't speak to pricing. 

What other advice do I have?

I'd rate hte solution seven out of ten. 

Which deployment model are you using for this solution?

Public Cloud
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
PeerSpot user
Ben AmaraSeif Alah - PeerSpot reviewer
Cloud Architect Azure at Thales
Real User
Allows us to secure endpoints using a proxy and provides technical support to help us set up new use cases and identify configurations
Pros and Cons
  • "The most valuable feature is the ability to drop packets."
  • "The OS capabilities and WSL support could be improved."

What is our primary use case?

We use Zscaler to secure endpoints using a proxy.

This solution is used by 500 people. We have plans to increase usage by 10-20%.

It's a cloud based solution.

What is most valuable?

The most valuable feature is the ability to drop packets.

What needs improvement?

The OS capabilities and WSL support could be improved.

For how long have I used the solution?

I have used this solution for about four years.

What do I think about the stability of the solution?

It's not very stable, but I think Zscaler is trying to improve that. This solution is typically deployed in endpoint environments like Windows, Linux, and even WSL, which is the Windows encapsulated version of Linux.

What do I think about the scalability of the solution?

It's scalable.

How are customer service and support?

We have used technical support to identify configurations, help us set up new use cases, and to secure endpoints that we want to be integrated.

How was the initial setup?

Setup is about medium difficulty. We needed more background information on how to set up a proxy. Setup could be easier.

It took between 30 minutes and one hour to set up the solution, activate our Zscaler company profile, and to configure ZIA.

What's my experience with pricing, setup cost, and licensing?

The solution is a little bit expensive. On a scale of one to five, I would rate it as a three.

What other advice do I have?

I would rate this solution as eight out of ten.

I would absolutely recommend this solution to those who want to start using it.

It's a cloud based solution, so Zscaler provides everything needed to set up and start using it, without complex requirements.

Which deployment model are you using for this solution?

Public Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
reviewer779877 - PeerSpot reviewer
Senior Software Engineer with 501-1,000 employees
Reseller
Easy to use, straightforward to set up, and very reliable
Pros and Cons
  • "The initial setup is very straightforward."
  • "If they can also integrate with the multi-factor authentication to prompt users to do another, second-factor authentication, that would be ideal."

What is our primary use case?

Basically, they usually are the endpoint VPN connection to secure the end-user device. They also integrate with the SD One solution to form a secure endpoint assessment for the SD One, with security from the endpoints to the network.

It serves as protection for the endpoint, especially laptops, to secure any internet access. Even when you assess the wireless itself, they also make sure that the traffic from the laptop is encrypted.

What is most valuable?

The way they do it is very easy to use at the moment. If you power on the laptop, they will survey. It's very easy for the user. The user doesn't really need to do anything except make sure that the access is there. That's all.

The initial setup is very straightforward.  

It is easy to scale. 

The solution is stable. 

What needs improvement?

If they can also integrate with the multi-factor authentication to prompt users to do another, second-factor authentication, that would be ideal. 

For how long have I used the solution?

I've used the solution for 18 months. 

What do I think about the stability of the solution?

The solution is very stable and reliable. There are no bugs or glitches. It doesn't crash or freeze. 

What do I think about the scalability of the solution?

The solution can scale very well. 

How are customer service and support?

Very minimal technical support has been required since the solution is so stable and easy to use. 

How was the initial setup?

The implementation process is easy. The agent they use runs very smoothly.

What's my experience with pricing, setup cost, and licensing?

They do have a minimum number of users required to make it viable. You need to have 500 users. Based on the licensing scheme, they offer 500 users. The initial level would be $3/month per user.

What other advice do I have?

I'd rate the solution eight out of ten. It is very easy to use.

Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
PeerSpot user
CISO at UST Global
Real User
Easy to deploy with good security and seamless integrations
Pros and Cons
  • "There is no lag in service when accessing the internet."
  • "We'd like to have more plugins and integration."

What is our primary use case?

We primarily use the solution for a secure web gateway and secure internet access. 

We wanted something for an overall internet access solution, an in-office, and out-of-office solution. We chose Zscaler Internet Access. 

What is most valuable?

It is very transparent. 

It securely transfers internet connectivity seamlessly, without any problems or issues. It's very simple for the user. 

The product offers easy deployment. 

Security is very strong. There is seamless integration as well.  

There is no lag in service when accessing the internet. 

The initial setup was straightforward. 

It is scalable. 

The solution is stable. 

What needs improvement?

The technical support could be better. We need more of an online knowledge base, so we don't have to lodge tickets whenever we have a question or issue. 

We'd like to have more plugins and integration. 

Even in a CASB scenario, if we could get API and JSON-contained decoding, that would be helpful.

For how long have I used the solution?

I've used the solution for over a year. 

What do I think about the stability of the solution?

The solution is stable and secure. We haven't had any issues. The product is great.

What do I think about the scalability of the solution?

We have more than 1,000 people using the solution. 

The scalability is really good. We've had no issues with the scalability. We even don't know when the performance tuning is happening in the back end. The user is not experiencing any problems, even if all thousand-plus users have started using it at the same time. There's no slowness or lag which is experienced.

We use it on a daily basis and plan to increase usage in the future. 

How are customer service and support?

If you want some support, you have to log a case. However, if there was more online support or a knowledge base that was readily available, it would be better. 

How would you rate customer service and support?

Positive

How was the initial setup?

The set up is very straightforward. It's a pretty easy process. The deployment scenario is pretty simple. You can just deploy it through a simple policy. You can deploy it even in terms of the distribution of hardware to users. 

To set it up took about three and a half weeks, from beginning to end. 

I'd rate the ease of deployment at a four or 4.5 out of five. 

After it is set up, there isn't really much maintenance. 

What about the implementation team?

We handled the deployment in-house. 

What was our ROI?

After three or five years, after not having any bad experiences, we can see some ROI. 

What's my experience with pricing, setup cost, and licensing?

The solution is quite expensive. It's around double what others are offering. The price we pay includes everything. It comes as a bundle. 

I'd rate the affordability of the solution at a two or three out of five. 

While the product quality is very good, the price is very high.

Which other solutions did I evaluate?

We have looked into Netskope.

What other advice do I have?

I'm an end-user. 

I am dealing with the latest version of the solution. 

I'd rate the solution eight out of ten. The only downside is that it is so expensive. 

Which deployment model are you using for this solution?

Public Cloud

If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?

Other
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
PeerSpot user
Buyer's Guide
Download our free Zscaler Internet Access Report and get advice and tips from experienced pros sharing their opinions.
Updated: August 2025
Buyer's Guide
Download our free Zscaler Internet Access Report and get advice and tips from experienced pros sharing their opinions.