What is our primary use case?
I've used Zscaler mostly for URL filtering, SSL Decryption, etc.
What is most valuable?
The best feature is that Zscaler allows for a separation between cloud applications and URL filtering. For example, under the cloud application segment, I can bypass Microsoft Office 365 without the need to add URLs manually. It's one click, so that's handy.
It's a robust solution with lots of helpful features like the sandbox, which quarantines every file before it's downloaded to the computer.
What needs improvement?
We recently had a significant issue with Zscaler. I think they have too many customers and some of their connection edge nodes went down because there were too many requests. I think they aren't scaling enough to keep up with the demand in some areas. That's one thing they should improve.
For how long have I used the solution?
I've been using Zscaler since November 2021.
What do I think about the stability of the solution?
Zscaler is stable except for that problem we had two months ago. It functions just as well as WSA I would say.
What do I think about the scalability of the solution?
Zscaler has too many customers, and they are not able to keep up with all the demand. We have 3,000 users.
How are customer service and support?
I've contacted Zscaler multiple times because some allowed URLs wouldn't work as intended, and I needed support to check the issue on their end. Sometimes, it was an issue on their side or maybe we didn't allow all the IPs. The support has been excellent so far, and they respond in 10 or 15 minutes.
How was the initial setup?
The customer already had it in place, so I cannot say much about the deployment, but I have analyzed the configuration. There's a tunnel between our internet router and some device on Zscaler that all the traffic goes through. The graphical user interface is accessed through a Zscaler public URL, but I'm not sure how the setup went from A to Z.
What's my experience with pricing, setup cost, and licensing?
There are multiple licenses, but I don't deal with pricing, so I'm not aware of the specifics. There are licenses for custom URL categories and licenses based on the number of users, just like the WSA.
I think there are licenses for each feature, like the web proxy firewall, etc. We also have a new feature called Cloud Browser Isolation that allows us to open a website in a sandbox to prevent viruses from spreading.
What other advice do I have?
I rate Zscaler nine out of 10 because I recently had this experience with custom neural categories. We reached the threshold of 64 categories, and I couldn't go any further because we had to purchase a subscription for more categories.
My advice for prospective Zscaler users is this: If you have multiple sites, create a tunnel for each site towards the scaler and have at least one redundant tunnel on each site in case one of your service providers goes down.
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