The solution is used for security purposes especially. Any solution in the organization has its purpose.
Service and Contract Manager at a tech vendor with 5,001-10,000 employees
Solution stability supports security and integration well
What is our primary use case?
What is most valuable?
We have been reselling this solution for more than five years now.
Zscaler Internet Access integrates effectively, especially with the high-level IP services. However, there are some challenges with new software development on the SD-WAN part and sometimes with routing of data. Issues appear sometimes with upgrades, but that's really an exception; it's not happening frequently.
What needs improvement?
Regarding scalability, it's a challenge for Zscaler Internet Access at this moment, so I rate it a seven.
For how long have I used the solution?
For us, it's recent, but we are also a distributor and reseller, having been using and working with this product for more than five years now.
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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What do I think about the stability of the solution?
It's very stable; however, due to the success, they are slightly behind with resources. This includes following up on new opportunities and finding the right resources to be available for customers' questions when sold.
Zscaler Internet Access is quite expensive, but it delivers. Sometimes, depending on the customer and the service and why it's used, it's acceptable.
The deployment process for Zscaler Internet Access is quite straightforward. I think the success of Zscaler has had an impact on their resources.
How are customer service and support?
The quality of technical support depends on which department you're reaching out to at Zscaler Internet Access.
How would you rate customer service and support?
Positive
How was the initial setup?
We are providing installation and deployment for our customers with Zscaler Internet Access.
The installation may take a couple of weeks, but it depends on the customer. The experience I have until now is a couple of weeks.
What about the implementation team?
The implementation is done together with the project managers of Zscaler Internet Access.
From our side, the whole process mostly involves the project manager that is dealing with the deployment.
What was our ROI?
I think as long as Zscaler Internet Access is stable, it can have some financial benefits. Until now, we can confirm that for a few customers I am working with.
What other advice do I have?
Zscaler Internet Access is quite expensive, but it delivers. Sometimes, depending on the customer and the service and why it's used, it's acceptable. We get more and more reactions about the price going up, sometimes too much or too little.
For the stability of Zscaler Internet Access, I would recommend it, but for the price, I think it's too expensive. Most customers that use it have the money and want the whole package, a managed service. However, I think it should be less expensive because we're losing customers to the competition.
On a scale of one to ten, I rate this solution an eight.
Which deployment model are you using for this solution?
On-premises
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Other
Disclosure: My company has a business relationship with this vendor other than being a customer. Reseller
Last updated: Aug 7, 2025
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Sr. Consultant, Cyber Security at a tech services company with 501-1,000 employees
Internet Access solution that offers URL filtering and continuously releases new features
Pros and Cons
- "The URL filtering has been the most valuable feature."
- "They block Zscaler IPs when the traffic origin is from Zscaler IPs. They've been blocked by certain government organizations so the end users are not able to visit those websites unless we ask them to unblock those IP. This is a bit problematic."
What is our primary use case?
We use this solution mainly to protect or provide internet security for our customers including URL filtering for SSL interception, tech protection and to provide phishing protection for our web links.
What is most valuable?
The URL filtering has been the most valuable feature.
They're constantly improving because they have a very short development cycle where they add more features every one to three months. If we like a particular feature, we request it through a product enhancement and if it gets accepted, it gets implemented within that year.
What needs improvement?
They block Zscaler IPs when the traffic origin is from Zscaler IPs. They've been blocked by certain government organizations so the end users are not able to visit those websites unless we ask them to unblock those IP. This is a bit problematic.
For how long have I used the solution?
We've been working with Zscaler for almost a year and a half.
What do I think about the stability of the solution?
This is a stable solution. It's a cloud service so we've never faced any outages. The availability has always been 100% for the past one and a half years. I don't think we've had any incidents with any of our data centers. Even if they do have a problem with a data center, they usually switch to the nearest region.
What do I think about the scalability of the solution?
This is a very scalable solution.
How are customer service and support?
We have had different experiences with the technical support. I would rate them a seven out of ten. The response time is good but sometimes it is difficult for them to pinpoint the root cause of problems.
Which solution did I use previously and why did I switch?
We previously used Symantec. The main problem with Symantec was that they did not have a local data center here in UAE. That was one of the biggest requirements for our customers.
How was the initial setup?
The initial setup is very straightforward. They provide the cloud settings and then it's your responsibility to direct your traffic towards the Zscaler Cloud and they manage everything else for you. The infrastructure is managed by the vendor and themselves. We don't have to worry about any maintenance.
What was our ROI?
We have experienced a return on our investment. We have used competitor solutions but the experience with this particular solution was much better.
What's my experience with pricing, setup cost, and licensing?
We have purchased it for a maximum of 2000 users at one location and 5000 at another location but I am not sure of the amount we paid.
What other advice do I have?
It's easy to deploy and easy to use. There's a lot less administrative overhead so you won't require a very big team to manage it. It's the biggest benefit.
I would rate this solution a ten 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
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.
Security Architect at a financial services firm with 1,001-5,000 employees
Provides good protection and does its job, but needs a better administrative interface and is expensive
Pros and Cons
- "The protection is most valuable."
- "The interface for administration could be better. They should upgrade the management portal."
What is most valuable?
The protection is most valuable.
What needs improvement?
The interface for administration could be better. They should upgrade the management portal.
Their support could also be better.
For how long have I used the solution?
We have probably been using this solution for about three years. We are using its latest version.
What do I think about the stability of the solution?
Its stability is reasonable. We've had a couple of outages, but overall, it has been okay.
What do I think about the scalability of the solution?
Its scalability is fine.
How are customer service and support?
It could be better.
How was the initial setup?
It was probably in the middle in terms of complexity. Bits of it were easy, and bits of it were more complicated than we envisaged. I would rate it a three out of five in terms of the setup.
Its implementation probably took several weeks. It is deployed on-premises as well as on a public cloud.
What about the implementation team?
We had involved a third party. It was a bit of a mix.
For the maintenance, there are about three people.
What's my experience with pricing, setup cost, and licensing?
It is quite expensive. It does its job, but it is quite expensive for what we need.
What other advice do I have?
Understand your use case and be sure of your technical ability to implement the policies.
I would rate it a seven out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Cyber Security Consultant at a financial services firm with 1,001-5,000 employees
Highly stable, feature rich, and good support
Pros and Cons
- "The most valuable feature of Zscaler Internet Access is that it is a consolidated solution, it comes with many features, such as DLP."
- "Zscaler Internet Access could improve by adding a VPN feature."
What is our primary use case?
I use Zscaler Internet Access as an internet proxy for security.
What is most valuable?
The most valuable feature of Zscaler Internet Access is that it is a consolidated solution, it comes with many features, such as DLP.
What needs improvement?
Zscaler Internet Access could improve by adding a VPN feature.
For how long have I used the solution?
I have been using Zscaler Internet Access for approximately one year.
What do I think about the stability of the solution?
Zscaler Internet Access is highly stable.
What do I think about the scalability of the solution?
The scalability of Zscaler Internet Access is good.
How are customer service and support?
The technical support from Zscaler Internet Access is good.
I rate the support from Zscaler Internet Access a four out of five.
How was the initial setup?
The initial setup of Zscaler Internet Access is simple.
Which other solutions did I evaluate?
We did evaluate other solutions before choosing Zscaler Internet Access, such as Symantec.
What other advice do I have?
I rate Zscaler Internet Access an eight 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
Technical Lead at a tech vendor with 10,001+ employees
Offers private access and lots of features with good reliability
Pros and Cons
- "The solution is scalable and stable."
- "Sometimes, support isn't available."
What is our primary use case?
The solution is primarily used as a secure web gateway.
What is most valuable?
Overall, it's a good solution.
We had very few issues during implementation.
Technical support is quite helpful and responsive once you get a hold of them.
It has private access and has a lot of features inbuilt including DLP, CASB, et cetera.
The solution is scalable and stable.
What needs improvement?
The solution can be a bit pricey.
Sometimes, support isn't available.
Zscaler does not have any local data centers. For example, if we have our customers in Czech Republic, in the Czech Republic they don't have their data center, as the local content, in the Czech language. They should do something in the Czech Republic and ensure that the language is accessible. They should have one data center as these people want to see the local content. Everyone wants to see their first language in the available content.
Also, in Brazil, they just have two data centers in São Paulo and they should consider expanding to other data centers.
When you check the logs, you cannot see what policy is allowed. That is one thing that is lacking. If I put someone's account in Zscaler, then it should show which policy it will be applicable for. For example, in Forcepoint we have that feature. This is something that Zscaler needs to add. They just need to put the account of some users and check whether they will be able to access that or not.
They don't have MFA, or multi-factor authentication, for admins.
For how long have I used the solution?
I've used the solution for about one year and three or four months.
What do I think about the stability of the solution?
The solution is stable. There are no bugs or glitches. It doesn't crash or freeze. It's reliable.
What do I think about the scalability of the solution?
The solution is very scalable. If a company needs to expand it, it can do so. It's on the cloud, which makes scaling easy.
How are customer service and support?
The support is great. They helped us during implementation.
When we ask for support, however, they reschedule the calls. Support guys are not always available. If I schedule the call for three to four days before, they will reschedule it. Sometimes, we'll join the call and they won't and then they'll just reschedule. That is something that has been disappointing.
How was the initial setup?
The implementation process was pretty straightforward. We did not run into issues.
We did have some issues in that there were professional services that were purchased already, however, we came to know very late that we had any professional services support available from the vendor. We ended up handling things ourselves. The professional services were okay, however, they just were able to help us at a high level with recommendations.
What's my experience with pricing, setup cost, and licensing?
The product is a bit expensive. That said, that is not in our scope to worry about pricing.
What other advice do I have?
We were integrated with Azure Identity. We are not sure if the client has their own data center or what they are using in that backend, or which cloud provider.
I would rate the solution a nine out of ten.
Which deployment model are you using for this solution?
Private Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Global Information Security Architect at a engineering company with 10,001+ employees
Centralized firewall that protects the whole topography
Pros and Cons
- "The scanning feature is impressive, because they do not introduce a big latency to the traffic."
- "I would like to see the ability to choose a pool of IPs for my company, set up rules based on them, and know that those IPs are not used by other companies."
What is our primary use case?
We use it for security. We installed it on our work computers and also for other traffic from the office. We are using it for perimeter security and that is useful for us.
How has it helped my organization?
I will give you an example. Before implementing a computer scan on all PCs, our main problem was when we received a phish or something like it. It was impossible for us to tell if it was people from inside or outside our organization that clicked on it. If people that were inside our organization had different appliances for checking the traffic, you had to connect each appliance and get the receipt from that URL. It was a little bit complicated. With the scanner, for example, if somebody clicks on a bad URL you just add that to the reporting part and in a matter of minutes it generates a report, where you can see exactly who clicked on that link and who did something before you got a chance to block that malicious URL. That is the first benefit that comes to my mind and I think it was a huge improvement in our site. Having a centralized firewall that protects the whole topography is quite awesome when you also have users that are not on the plan because it actually improves visibility of those users.
What is most valuable?
I cannot say that I found only one feature that is most valuable, but I can tell you that I find value in traffic scanning and samples. That I think is quite valuable for all their software. The scanning feature is impressive, because they do not introduce a big latency to the traffic. I really like how they manage this part.
What needs improvement?
On the technical side, the only thing that I believe this scanner can improve is in the way they allocate traffic. For example, a big site doesn't have the ability to have its IPs inside the cloud, so Zscaler doesn't allocate you certain IPs for traffic. Your traffic goes to the nearest Zscaler point, and from there you get an IP. Sometimes that is problematic, because your users use the same IPs that another client is using so you don't get the ability to do some rules using some IPs. For example, you cannot use conditional access to high influence IP. You can't say if somebody goes to Zscaler I know that traffic is secure so I can let them past. In this scenario you cannot do this, because Zscaler is using a pool of IPs and they'll circle them for all the clients. I would like to see the ability to choose a pool of IPs for my company, set up rules based on them, and know that those IPs are not used by other companies.
For how long have I used the solution?
We've been using Zscaler for 4 years.
What do I think about the stability of the solution?
The product is mature. I can't say it's not stable. It's been there for a while now and it proves that it can do the job according to what they say they do. I cannot say that they are not doing the best of what they think they should do. So at this point, they have a mature product and are working quite okay.
What do I think about the scalability of the solution?
There are no issues there. The number of users doesn't matter, whether you have 100 users or 2,000 users. The only impact you'll have is on financial side. For 100 users you will pay differently than 10,000 users, so I don't think you have an issue on this side.
All our users have libraries on their computers. So if they have a device from the company, they have Zscaler on it. I think we have about 3,000 users in my company.
We have one or two people on maintenance from the global networking team. You don't need to do something special, it just works. The only thing we need to do is check daily if there are any threats, as well as to verify the US dollar and stuff like that. In terms of maintaining it, doing something to make it work, you don't have to worry about that. It's a cloud provided solution. The only thing that you have to concentrate upon is the business side. You have to see how your business is affected, what type of traffic you have in there, and check security threats on your site. That's it. The product by itself is run by the Zscaler team and they do a good job. We do not have maintenance debts. The only incidence that I remember is last month they were blocking our site or something , but that was solved quickly with support from Zscaler.
How are customer service and technical support?
I did not get any experience directly, I got some instance of indirect support. I asked networking for something and they work directly with the support. My impression was that they responded quickly, relatively speaking. I don't know exactly how it works on the other side, but my impression indirectly was that they offer quick support.
Which solution did I use previously and why did I switch?
no cloud solution and we had to route back to office the road warriors trafic
How was the initial setup?
From what I discussed with my colleagues from the network that we were working with, it wasn't a difficult process. I cannot tell you how long it took.
Which other solutions did I evaluate?
We didn't have a similar solution. We had a solution, but we didn't have something cloud-based as a security solution, so I would say we did not use any cloud security-based system.
What other advice do I have?
Check if a product like this makes sense for you. And look at the specifics: what you need in terms of security and what features you would like to have in it. Zscaler is one solution. It's a good solution, but it doesn't do everything. First of all, analyze a few solutions and make a demo. Without a demo, I do not recommend moving forward, because any security solution comes with a price. There is also the financial price, to know if that is okay for your company. Usually Zscaler works best for companies that have users that do not stay in an office. They have road warriors. I would recommend it for companies that have a lot of users moving from here to there.
I would rate Zscaler as eight out of ten. It's not an ideal solution, one of the things is that I do not have my IP fully inside it. For example, you have countries where they don't have a lot of presence and then sometimes they go to another country where they have a presence or data center. When you come back to the other country, and you have to open a fiber, it can be geographically restrictive. I find my country and am going through by neighborhood. When I come back to my country, I cannot see it because I'm geographically restricted. I'm not part of that country, so that's one reason Zscaler isn't ideal.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
IT Manager at SiVEST
Protect users from internet threats no matter where in the world they are
Pros and Cons
- "Zscaler Web Security protects our users in remote locations from internet threats - even if they are not connected to our network."
- "Another thing that I would like to see is if Zscaler could have a separate product for direct access. I looked at a private access solution, but I understand there's a separate product that isn't integrated with this."
What is our primary use case?
We primarily use this web security solution to protect our users in remote locations or branches from internet threats. It is very important for our organization to protect our users, even if they are not connected to our network.
How has it helped my organization?
Zscaler Web Security protects our users in remote locations from internet threats even if they are not connected to our network.
What is most valuable?
What I like most about Zscaler Web Security is that we can have our users protected from internet threats and viruses even when they're not connected to our network. I love the fact that it enables us to create whitelists and blacklists based on specific users. These features are extremely important to us and that is what we like most about this solution.
What needs improvement?
The reporting could be improved to make it a little bit easier. When it comes to individual users, I'd like to see easy reporting that can be shared with executives. Due to my technical background I don't have issues to understand the reporting.
However, if I have to give a report to an executive to read, he may find it too confusing. He wants to see something simplistic that contains information like what the user's access time was, how long the user spent time on the site, which sites was visited, what they did etc. The current reports can, therefore, be somewhat improved and simplified.
Another thing that I would like to see is if Zscaler could have a separate product for direct access. I looked at a private access solution, but I understand there's a separate product that isn't integrated with this.
For how long have I used the solution?
We've been using Zscaler Web Security for five years now.
What do I think about the stability of the solution?
We've never experienced any outages or other problems since we started using this solution, so I believe it is very stable and secure.
What do I think about the scalability of the solution?
I think it scaled quite well. We are currently using it in a small organization with about 250 users, and I would say it will scale as our company grows.
How are customer service and technical support?
We've used the technical support on occasion, and they were excellent.
How was the initial setup?
We bought Zscaler Web Security through our Internet Service Provider, so they handled most of the setup. So, from our part, it was quite straightforward.
What about the implementation team?
Our Internet Service Provider is a reseller, and they helped with the installation and setup. Their level of expertise was outstanding. Maintenance and deployment will be easy to manage and I believe one person will be able to handle it. It won't be a full-time job.
What was our ROI?
Although I can't put a figure to it, we've definitely seen a return on our investment.
What's my experience with pricing, setup cost, and licensing?
Our monthly fee is around R3000 and I think it is very reasonable.
What other advice do I have?
My advice to other users would be to determine if the reporting meets their requirements. They should get their whitelists, blacklists, groups and active directory set up properly before trying to implement it because it has a very strong integration with the active directory. Therefore, if you have your active directory well set up, you can classify your users and create groups as to who can go where and who can do what on the internet.
If I have to rate this product, I will give it a nine out of ten - simply because I never give anything a ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
IT Projects & Innovation Manager at a pharma/biotech company with 1,001-5,000 employees
Protects from malware and malicious attacks but it needs better integration
Pros and Cons
- "The most valuable feature is bandwidth control."
- "It also needs better integration with other applications as well. There are some restrictions."
What is our primary use case?
Our primary use case of this solution is for the protection from malware and malicious attacks. We also use it for bandwidth control to compare business and individual use. We use it in conjunction with Palo Alto.
What is most valuable?
The most valuable feature is bandwidth control. It has good traffic visibility.
What needs improvement?
The implementation process needs improvement. Even if you have implemented it, it doesn't mean that it is done, you have to pay for the service afterward. It's not a one-shot implementation, you need to spend some more effort on it afterward.
It also needs better integration with other applications as well. There are some restrictions.
I would like to see them incorporate a user ID or application ID in the next release of this solution.
For how long have I used the solution?
I have been using Zscaler for around eight months.
What do I think about the stability of the solution?
Since you need to maintain it the maintenance payout is not that good. I cannot say that it's stable.
What do I think about the scalability of the solution?
In my company, we have around five thousand users, but just the main account would be around three thousand.
It works every day and it's protecting against the attacks and so we are using on a daily basis.
How are customer service and technical support?
I would rate their technical a four out of five, based on my experience with some support cases. Their support is good.
How was the initial setup?
The initial setup was okay but the problem is that afterward, you have to put in more time and money.
What about the implementation team?
We used a consultant for the deployment.
What's my experience with pricing, setup cost, and licensing?
It's not an expensive solution but it is more expensive than some of its competitors. The licensing model is good if you pay for the medium-level licensing model. We get many features with the license but if you would like to integrate with other things, you have to spend time and money for the maintenance but other than that you don't have to buy additional new licenses.
What other advice do I have?
It was also one of four other products I believe but the Zscaler I can say that for bandwidth control, it is good, so we are not using at the moment data loss prevention feature so I cannot comment on that, but I believe, when you use Zscaler, you are not protected from all malware and malicious attacks, so you may need another tool just to cover these gaps. Zscaler is not enough for advanced protection. You need an additional tool.
Bandwidth control, reporting, and visibility are good but the cloud-based and the advanced protection aren't so great so I would give it a six out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

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Updated: August 2025
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