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Zscaler Cloud Firewall pros and cons

Vendor: Zscaler
4.1 out of 5

Pros & Cons summary

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Prominent pros & cons

PROS

Zscaler Cloud Firewall includes advanced tech protection and effective threat mitigation.
The initial setup is straightforward, and deployment is easy, flexible, and scalable.
Zscaler Cloud Firewall provides in-depth visibility and log availability, aiding troubleshooting.
The firewall and VPN package offer comprehensive protection compared to other options.
Support from Zscaler is excellent, enhancing user experience and satisfaction.

CONS

Zscaler Cloud Firewall does not provide web browser isolation, unlike other solutions like Menlo, which limits integration capabilities.
There is a lack of Data Leak Prevention for email, only web filtering is covered, and some fundamental differentiating components are missing.
Integration with legacy systems could be improved, and there are issues with flexibility and visibility when creating inspection rules.
Technical support services and customer support need enhancement, and there could be more competitive pricing with better inclusion in basic packages.
The effectiveness of IP blocking is limited; blocking a top-level domain does not automatically block sub-domains and associated IPs.
 

Zscaler Cloud Firewall Pros review quotes

MK
Security Subject Matter Expert at Orange
Jan 26, 2020
The solution offers good sandboxing.
Carlos Snel - PeerSpot reviewer
Director at Aquila ICT Solutions
Mar 19, 2020
Once you have Zscaler running you have access to configure it however you want.
PM
Director at a tech services company with 1-10 employees
Feb 2, 2022
Includes advanced tech protection.
Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: December 2025.
879,310 professionals have used our research since 2012.
chiefexe795285 - PeerSpot reviewer
Chief Executive Officer at a tech services company with 1-10 employees
Feb 22, 2021
The initial setup is straightforward.
reviewer1026111 - PeerSpot reviewer
IT Security Manager at a retailer with 10,001+ employees
Aug 10, 2021
I like the ease of deployment and its flexibility. We don't need to deal with license, quotes, procurement, delivery, and installation. Everything is software-based, and it's very easy to operate.
reviewer1712571 - PeerSpot reviewer
Implementation Engineer at a tech vendor with 201-500 employees
Nov 24, 2021
The solution is scalable.
Tejas Jain - PeerSpot reviewer
Head Of Security Engineering Principle Architect at a tech services company with 11-50 employees
Dec 30, 2021
Most of the features that Zscaler has to offer, we will deploy.
reviewer1304067 - PeerSpot reviewer
Product Manager (Zscaler) at a tech services company with 201-500 employees
Jan 20, 2022
It helps a lot of companies to reduce their downtime. Also, It helps businesses in terms of being secured and protected from any threats.
Bhaskar Rao - PeerSpot reviewer
Network manager admin at Yamaha
Apr 6, 2022
The scalability is okay. We have around 2200 people using this solution.
CS
Java Software Engineer at a computer software company with 5,001-10,000 employees
Jul 4, 2023
It is a stable solution.
 

Zscaler Cloud Firewall Cons review quotes

MK
Security Subject Matter Expert at Orange
Jan 26, 2020
The issue right now is probably that Zscaler is not providing web browser isolation. Another solution, Menlo, offers this. For one customer, we had to send traffic to Menlo to do the isolation for us. It was requested by the customer so that they could integrate any iframe. Zscaler needs to add this type of feature in their next release.
Carlos Snel - PeerSpot reviewer
Director at Aquila ICT Solutions
Mar 19, 2020
Because it's on cloud, it doesn't allow application of extra settings.
PM
Director at a tech services company with 1-10 employees
Feb 2, 2022
Data Leak Prevention is only for web filtering and there is no protection for email.
Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: December 2025.
879,310 professionals have used our research since 2012.
chiefexe795285 - PeerSpot reviewer
Chief Executive Officer at a tech services company with 1-10 employees
Feb 22, 2021
The product could improve its integration with some legacy systems.
reviewer1026111 - PeerSpot reviewer
IT Security Manager at a retailer with 10,001+ employees
Aug 10, 2021
It would be better if they improved their policy, package visibility, and flexibility while we're creating rules for inspection. It could also be cheaper or more things could be included in the basic package. In the next release, I would like better coverage in the Asia Pacific region and better quality of service.
reviewer1712571 - PeerSpot reviewer
Implementation Engineer at a tech vendor with 201-500 employees
Nov 24, 2021
There are some areas it could improve when it comes to blocking, we have to block some things manually. For example, if we block a top-level domain we have seen that the new IPs come through, the IPs are not blocked. There should be some more granular way of doing it. My only request is if you're blocking something at a top level, the sub-level sub-domains and all those other IPs should be blocked too automatically.
Tejas Jain - PeerSpot reviewer
Head Of Security Engineering Principle Architect at a tech services company with 11-50 employees
Dec 30, 2021
It would be nice to have some sort of a form factor, a physical form factor perhaps, or virtual machine that you could install on devices or on a cloud, and have some cloud computing.
reviewer1304067 - PeerSpot reviewer
Product Manager (Zscaler) at a tech services company with 201-500 employees
Jan 20, 2022
Certain criteria need to be met if you want to scale this solution.
Bhaskar Rao - PeerSpot reviewer
Network manager admin at Yamaha
Apr 6, 2022
We are having some issues with internet access being denied when organizational ID-based policies change. For example, a lower level employee ends up getting the same level of access as that of a higher level employee.
CS
Java Software Engineer at a computer software company with 5,001-10,000 employees
Jul 4, 2023
Its technical support services could be better.