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CoreOS Clair vs SUSE Rancher comparison

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Comparison Buyer's Guide

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

Qualys TotalCloud
Sponsored
Ranking in Container Security
12th
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
43
Ranking in other categories
Vulnerability Management (11th), Cloud Workload Protection Platforms (CWPP) (8th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
CoreOS Clair
Ranking in Container Security
39th
Average Rating
8.6
Reviews Sentiment
7.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
SUSE Rancher
Ranking in Container Security
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.6%, up from 1.0% compared to the previous year. The mindshare of CoreOS Clair is 0.7%, up from 0.5% compared to the previous year. The mindshare of SUSE Rancher is 0.5%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.6%
SUSE Rancher0.5%
CoreOS Clair0.7%
Other97.2%
Container Security
 

Featured Reviews

RO
IT Security Expert at Alior Bank S.A.
Unified risk scoring has improved our cloud visibility and simplifies remediation priorities
Qualys TotalCloud provides unified vulnerability and threat assessment across both IAS and SaaS. This solution provides a single prioritized view of risk, which helps reduce the work I would have to do. We are no longer based on CVSS; we are based on Qualys risk scoring, which is based on CVSS plus internal findings made by Qualys, and then assigns its own score. The TruRisk insight feature has found a small number of assets with high vulnerability scores, though I am cautious since some information is classified. Qualys TotalCloud has positively impacted our bank's performance, and we have definitely seen benefits after implementing this solution.
Felipe Giffu - PeerSpot reviewer
Red Hat Solution Architect at Seprol Computadores e Sistemas
An operational system, similar to Linux where you can run your applications inside containers
With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers. When you mentioned using Nacula as part of your CI/CD pipeline, it means your application is deployed and managed automatically through the CI/CD process. Containers are used to deploy your application within this pipeline, but CoreOS does not run inside these containers. Instead, CoreOS is the base operating system that supports and manages these containers.
Shivamp Kachole - PeerSpot reviewer
Associate System Engineer at Dhanyaayai enterprise private limited
Centralized cluster management has improved daily operations and simplifies troubleshooting
I am happy with SUSE Rancher, but there are a few areas where it could be improved. During major version upgrades, the process can become a bit complex, especially in air-gapped environments where image management and dependencies require extra planning. Additionally, troubleshooting sometimes still requires switching to the command line because not every error is visible in the UI. If the UI provided more detailed diagnostic and troubleshooting information, it would make our issue resolution even faster. Other than that, it has been a reliable platform for all of us. I think the documentation is already very good, but for complex scenarios such as air-gapped environments, disaster recovery, or multi-cluster upgrades, having more step-by-step examples and troubleshooting guides would be very helpful. On the UI side, if SUSE Rancher could provide more detailed error messages and built-in diagnostic recognition, it would reduce the need to switch to logs and command lines. Those improvements would make our daily operations even easier and smoother, especially for new administrators and fresh team members.

Quotes from Members

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

Pros

"TotalCloud offers a comprehensive suite of features, including EDR, XDR, and TrueRisk, providing a centralized platform for managing vulnerabilities and security risks."
"Its excellent graphical interface makes the scanning process simple."
"Vulnerability and threat detection and assessment of the criticality of the vulnerabilities exposed are most valuable."
"The best part I like is the on-demand scans."
"Qualys TotalCloud is an excellent platform, and the beauty of the platform is that we can get all the vulnerabilities, see all the reports in a single dashboard, view them segregated, and easily learn about critical, high, and medium findings with appropriately provided remediation steps."
"CSPM is currently the most used feature, and we are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs."
"Once you have your vulnerabilities fixed and your patches pushed out using Qualys TotalCloud, then you are able to eliminate threats and cyber risk."
"The scalability is good as well. I would rate it ten out of ten."
"CoreOS Clair can be used by organizations of any size."
"With CoreOS, you can run your applications inside containers. For example, if you have an application that needs to run on Linux, you can create and install a container. However, it's important to note that you don't install CoreOS inside a container; CoreOS is the host operating system that manages containers."
"CoreOS Clair's best feature is detection accuracy."
"The end-to-end deployment was at least 30 percent cheaper than OpenShift, which was the biggest criterion since customers are cost-conscious."
"SUSE Rancher has made things easier for my team and organization by reducing errors, as I use it every day of the week, and it shows us issues through dashboards."
"SUSE Rancher has positively impacted my organization by making the teams' work easier and reducing project delivery time."
"SUSE Rancher helps me manage and automate processes with Kubernetes through full integration from hardware to application."
"The most valuable features of SUSE Rancher include the user interface and the display features."
"SUSE Rancher has positively impacted my organization with increased efficiency in a 10x manner."
"With SUSE Rancher, everything is in one place and centralized, daily operations are much faster and easier for us, it has reduced manual efforts and helped us troubleshoot issues faster because we get a single view from all our clusters, and overall, it has improved our team efficiency and consistency."
"Rancher Desktop provides support for Kubernetes setup on local machines."
 

Cons

"I sometimes have difficulty detecting or uninstalling certain versions of applications, which I have to do manually."
"I would like the ability to disable certain default built-in policies as they can be misleading when creating dashboards. That is the top one."
"The downside is only in container security, but it has not been a long time since they introduced these models."
"In a future release, I suggest that zero-day vulnerabilities should be predicted in advance using AI technologies. The system is not 100% secure yet, so proactive threat hunting could be enhanced to be more proactive than the current system."
"The cloud licensing unit system is unclear, especially since "units" aren't well-defined."
"I think Qualys TotalCloud needs to improve its handling of zero-day vulnerabilities and supply chain management because modern ransomware attacks not only target prime critical infrastructures but also the supply chain system."
"Qualys TotalCloud needs to enhance its scanning capabilities in the IP domain, as it currently lacks the functionality to resolve IPs to their corresponding domain names."
"We would like to see Windows-based sensors available in Qualys, as this would make the platform more versatile and support a broader range of environments."
"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."
"It can be improved in its support response. They usually take up to seven days to resolve the issue."
"All the tasks that SUSE Rancher does can be done in alternative methods, so it is not a must-have or a necessary tool in my view."
"Additional features for a paid solution should be included, such as more detailed insights, better graphics, and an improved user interface."
"One of the major challenges I faced with SUSE Rancher was during a POC for one customer who was using VMware; there was a significant challenge between VMware CSI and SUSE integrations."
"I wish the container could be more lightweight so that anyone can test and verify SUSE Rancher Prime."
"I think SUSE Rancher could be improved by having the documentation more centralized, though it is not that problematic currently."
"It would be beneficial to have more support for the product."
"Regarding the platform's features and advantages, it is unfortunate that observability and some artificial intelligence functionality work fully only with a paid subscription."
"An improvement I wish for with SUSE Rancher is that we once had issues regarding some driver problems for the network on a particular laptop, and we had a hard time finding the exact error occurring."
 

Pricing and Cost Advice

"Qualys TotalCloud offers cost-effective licensing flexibility."
"While Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive and may soon be considered overpriced."
"TotalCloud's price is about right where I would expect it to be."
"Although Qualys TotalCloud is relatively expensive due to its unique automation features, its cost-effectiveness is rated an eight out of ten, with ten being the most costly."
"The pricing is comparable. It is built into our other product, so I cannot piecemeal it. It is a part of our subscription."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"CoreOS Clair is open-source and free of charge."
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Top Industries

By visitors reading reviews
Manufacturing Company
13%
Comms Service Provider
12%
Outsourcing Company
11%
Financial Services Firm
10%
Financial Services Firm
16%
Performing Arts
13%
Government
11%
Comms Service Provider
11%
Outsourcing Company
26%
Computer Software Company
23%
Financial Services Firm
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise5
Large Enterprise31
No data available
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise2
Large Enterprise7
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
To be totally honest, I do not have any best features because I have had a bad experience using this tool, especially...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is vulnerability management and exposure management. I use this tool to evalua...
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What is your experience regarding pricing and costs for SUSE Rancher?
I wasn't directly involved in the commercial side such as pricing, negotiation, or licensing decisions. Since we are ...
What needs improvement with SUSE Rancher?
I am happy with SUSE Rancher, but there are a few areas where it could be improved. During major version upgrades, th...
What is your primary use case for SUSE Rancher?
I have been working in the DevOps field and platform engineering field for around two years, approximately 1.9 years....
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
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Overview

 

Sample Customers

Information Not Available
eBay, Veritas, Verizon, SalesForce
Information Not Available
Find out what your peers are saying about CoreOS Clair vs. SUSE Rancher and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.