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Zscaler Cloud Firewall pros and cons

Vendor: Zscaler
4.1 out of 5
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Pros & Cons summary

Zscaler Cloud Firewall delivers effective sandboxing and tech protection with straightforward setup and scalability. It enhances business operations with minimal downtime, in-depth visibility, and invaluable log availability, supported by excellent technical support. Challenges include lack of browser isolation, limited Data Leak Prevention, and integration with legacy systems. Improvements are needed in blocking mechanisms, inspection rule flexibility, and pricing. Zscaler lacks visibility features like access to control dashboards.

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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

Carlos Snel - PeerSpot reviewer
Sep 19, 2025
The centralized management console, also referred to as the Zscaler dashboard, impacts the ability of my customers to respond to security incidents significantly, and clients are really happy with using it, which motivates them to keep using Zscaler Cloud Firewall because they enjoy the GUI.
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TJ
Dec 30, 2021
Most of the features that Zscaler has to offer, we will deploy.
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Carlos Snel - PeerSpot reviewer
Oct 6, 2023
It provides in-depth visibility into your network, ensuring that traffic flowing into your organization, be it from offices or individual users, is effectively filtered and secured through multiple layers of protection.
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Buyer's Guide
Zscaler Cloud Firewall
September 2025
Free Report: Zscaler Cloud Firewall Reviews and More
Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: September 2025.
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Bhaskar Rao - PeerSpot reviewer
May 27, 2024
If malicious traffic attacks our on-premises servers, then it gets blocked by Zscaler Cloud Firewall.
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MK
Jan 26, 2020
The solution offers good sandboxing.
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Shailesh Sachan - PeerSpot reviewer
Aug 11, 2023
Zscaler provides effective protection against various cyber threats ensuring a safe environment
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chiefexe795285 - PeerSpot reviewer
Feb 22, 2021
The initial setup is straightforward.
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Carlos Snel - PeerSpot reviewer
Mar 19, 2020
Once you have Zscaler running you have access to configure it however you want.
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reviewer1304067 - PeerSpot reviewer
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.
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JibinGeorge - PeerSpot reviewer
Oct 27, 2023
The visibility and log availability offered are highly valued for troubleshooting purposes, and this is a key factor driving customer interest in the firewall module.
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Show 9 more reviews (out of 19)
 

Zscaler Cloud Firewall Cons review quotes

Carlos Snel - PeerSpot reviewer
Sep 19, 2025
One area for improvement lies in their customer service, which feels less ideal for a premium product. The response and support are sometimes inadequate, which detracts from the overall experience of an otherwise impressive solution.
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TJ
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.
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Carlos Snel - PeerSpot reviewer
Oct 6, 2023
When it comes to customer support, there is room for improvement in Zscaler's service.
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Buyer's Guide
Zscaler Cloud Firewall
September 2025
Free Report: Zscaler Cloud Firewall Reviews and More
Learn what your peers think about Zscaler Cloud Firewall. Get advice and tips from experienced pros sharing their opinions. Updated: September 2025.
DOWNLOAD NOW
868,787 professionals have used our research since 2012.
Bhaskar Rao - PeerSpot reviewer
May 27, 2024
Apart from the issues associated with the product in areas like the DC performance issues and DC failover, Zscaler Cloud Firewall's IP should not have a proxy IP.
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MK
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.
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Shailesh Sachan - PeerSpot reviewer
Aug 11, 2023
They do not provide a few components that are fundamental to differentiate the products
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chiefexe795285 - PeerSpot reviewer
Feb 22, 2021
The product could improve its integration with some legacy systems.
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Carlos Snel - PeerSpot reviewer
Mar 19, 2020
Because it's on cloud, it doesn't allow application of extra settings.
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reviewer1304067 - PeerSpot reviewer
Jan 20, 2022
Certain criteria need to be met if you want to scale this solution.
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JibinGeorge - PeerSpot reviewer
Oct 27, 2023
Instead of the standard license, they should certainly provide customers with the visibility to access and view the logs.
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Show 9 more reviews (out of 19)

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