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Corelight Open NDR vs Zscaler Cloud IPS comparison

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Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Corelight Open NDR
Average Rating
8.8
Reviews Sentiment
7.6
Number of Reviews
7
Ranking in other categories
Network Traffic Analysis (NTA) (4th), Network Detection and Response (NDR) (7th)
Zscaler Cloud IPS
Average Rating
9.0
Reviews Sentiment
6.8
Number of Reviews
5
Ranking in other categories
Intrusion Detection and Prevention Software (IDPS) (20th)
 

Featured Reviews

reviewer2834367 - PeerSpot reviewer
Growth And Strategy Lead at a computer software company with 51-200 employees
Network visibility has transformed how we detect nation state threats and protect critical industry
Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale. However, I think with a lot of the artificial intelligence that they are building in, it is getting a lot easier to query in the platform. I would definitely encourage them to continue down that path where anybody can hop into the platform and start running queries, whether it is a simple instruction like I want this, and an artificial intelligence process can actually build the query and do it. I think that would be super powerful. Cyber skill sets are in high demand, and there is a huge backlog in cyber talent. We cannot fill all the positions we need. The easier we can make these cyber systems for people to pick up and be effective on, I think is really key. Explainability of data is hyper important. In the past few artificial intelligence related updates we have gotten from Corelight, that has been one of the first questions our team has asked every time or that I have asked: show me what the model is doing, show me how it came to this analysis. Within Investigator platform, they are able to walk through and see exactly what data the artificial intelligence pulled from where and why it did what it did as far as making its suggestions. They have definitely built their system with artificial intelligence in mind up front, and having that openness as one of the key features of any of their artificial intelligence and machine learning processes in the platform is important. The issue with black boxes is obviously hallucinations from artificial intelligence and just not being able to trace to ground truth. When we are talking about these cyber incidents and being able to do forensics, you need to be able to pinpoint and tie everything together, and black boxes really obscure that and prevent you from doing so. Corelight has done a really good job of making sure that everything is explainable and everything is mapped when it comes to leveraging any of their artificial intelligence features.
Utpal Sinha - PeerSpot reviewer
Sr Manager at HCL Tech
Stable product with valuable SSL inspection features
We use Zscaler Cloud IPS for threat protection, full SSL inspection, and data center scalability. It integrates with multiple products, including cloud firewalls, cloud sandboxing, Cloud Security Broker (CSB), and Data Loss Prevention (DLP). It helps us allow or block specific TCP or UDP ports…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Corelight makes much easier the remediation of cyber attacks; instead of facing a chaotic amount of logs, Corelight provides correlated metrics that allow pivoting to find, in seconds, all the data related to an alert, detection, or asset."
"Our company has seen massive improvements in cybersecurity position for our clients."
"It is easy to deploy and easy to handle."
"The most valuable feature is the embedded IDS from Suricata."
"It's easy to create additional dashboards specific to supporting specific tasks."
"Corelight Open NDR has had a positive impact on my company, providing visibility as the Suricata engine can scan huge volumes of traffic, including north-south and east-west, revealing signatures and exposures I was not expecting and enabling me to catch them with Suricata alerts."
"Corelight is easy to use."
"It's an easy way for us to get visibility in a client's environment."
"The initial setup process is easy."
"The initial setup is straightforward and easy in comparison with other solutions."
"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."
"The product's most valuable feature is complete SSL inspection."
"Cloud IPS integration is seamless, and it uses a Zero Trust model, and it also simplifies overall user access management."
 

Cons

"Machine learning could be a good improvement, but it's very costly."
"They can enhance the interface of the product. They can make it more interactive and also easier to use for feature access."
"Corelight hasn’t added features in a long time."
"Before Corelight recently started pushing some of the agentic features, querying at times could be a little difficult, depending on your mastery of log scale."
"The solution’s architecture is complex and difficult to understand. There are multiple machines and VMs."
"It's an expensive solution and the price could be reduced."
"In the next release, building a graphical user interface would be helpful."
"There is always room for improvement."
"When it comes to scalability, the IPsec could be improved."
"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."
"We encounter issues sharing IP addresses with other companies using the software."
"They have given limited free access for a year. Instead, they should increase the file size and give limited free access for around two months. It will allow engineers to evaluate the product."
 

Pricing and Cost Advice

"It's a yearly fee and depends on what you are looking for."
"Zscaler has so far been solely responsible for all the sales we have done with it, so it would be more suited than us to address any issues concerning the pricing."
"The product is not affordable for small and medium enterprises."
"The software has become more expensive at present."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Government
10%
Real Estate/Law Firm
8%
Computer Software Company
7%
Healthcare Company
15%
Construction Company
11%
Comms Service Provider
9%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise2
Large Enterprise1
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for Corelight?
I have a fortunate experience with pricing, setup costs, and licensing of Corelight Open NDR, as being a principal architect, I get to sit outside of that conversation and just choose the best prod...
What needs improvement with Corelight?
Corelight Open NDR does not need any improvements or additional features in the next releases. The product is excellent at what it does, and I believe what they have done with it, taking an open-so...
What is your primary use case for Corelight?
I have been using Corelight Open NDR solution for approximately three years. I leverage the Suricata engine heavily for alerting on indicators of compromise as my main use case for this solution.
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Also Known As

Corelight Open NDR
No data available
 

Overview

 

Sample Customers

CarrefourEdnonGrand Canyon EducationSektorCERTTietoevryVolkswagen Financial Services
Zenith Live, Azure, Carlsberg Group
Find out what your peers are saying about Corelight Open NDR vs. Zscaler Cloud IPS and other solutions. Updated: September 2026.
914,109 professionals have used our research since 2012.