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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
11th
Average Rating
8.6
Reviews Sentiment
7.3
Number of Reviews
39
Ranking in other categories
Vulnerability Management (11th), Cloud Workload Protection Platforms (CWPP) (7th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (1st), Cloud-Native Application Protection Platforms (CNAPP) (6th)
CoreOS Clair
Ranking in Container Security
32nd
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
17th
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
12
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2026, in the Container Security category, the mindshare of Qualys TotalCloud is 1.5%, up from 0.9% 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 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Container Security Mindshare Distribution
ProductMindshare (%)
Qualys TotalCloud1.5%
SUSE Rancher0.6%
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.
VG
Presales Engineer at a tech services company with 51-200 employees
Modernization of microservices and edge workloads has accelerated while integration still needs improvement
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. We had to move that deployment from VMware, which the customer wanted, to a bare metal solution. Flexibility also means better integrations with major industry solution providers like VMware, which many enterprise organizations use. The integrations with SUSE Rancher are fine, as long as you have open APIs, anyone can connect. For me, there were no challenges because we had standard products already certified. However, the integration between VMware and SUSE could definitely be improved. I chose 7 out of 10 because I faced VMware-related challenges as I explained. A lot of customers are still on VMware, while many also use Red Hat solutions, especially with the IBM push now. The marketing and outreach need to increase to penetrate more accounts, which are the two improvements I suggest.

Quotes from Members

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

Pros

"Vulnerability and threat detection and assessment of the criticality of the vulnerabilities exposed are most valuable."
"Qualys TotalCloud's most valuable feature is its agent versatility."
"Qualys TotalCloud's most valuable features are its security capabilities that help identify and mitigate risk factors."
"We were able to realize its benefits within 24 to 48 hours."
"While automatic inventory detection upon connection is a helpful feature, a truly valuable capability would be assessing an environment's security posture against Azure and CIS best practices."
"CSPM is currently the most used feature, and we are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs."
"Qualys TotalCloud has improved our security posture."
"With TotalCloud, we can scan through the API. If we are not able to deploy cloud agents on the machine, we can use the API."
"CoreOS Clair can be used by organizations of any size."
"CoreOS Clair's best feature is detection accuracy."
"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."
"Rancher Desktop provides support for Kubernetes setup on local machines."
"We have been able to cut down the amount of time an expert needs to spend on upgrade and maintenance to a fifth of what it was before."
"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 positively impacted our organization by helping our teams achieve greater results in delivering end-to-end initiatives."
"I could say that with SUSE Rancher, we've managed to cut the provisioning time to probably one-tenth of the usual provisioning time."
"SUSE Rancher has positively impacted my organization as productivity is the main point, and the productivity has improved because the main project goal was to finish the project faster, which was particularly important since we have many applications."
"SUSE Rancher has positively impacted my organization with increased efficiency in a 10x manner."
"SUSE Rancher has positively impacted my organization by making the teams' work easier and reducing project delivery time."
 

Cons

"I sometimes have difficulty detecting or uninstalling certain versions of applications, which I have to do manually."
"The price is very expensive, actually."
"The main area needing improvement is integration. Although the team is strengthening TotalCloud, integration can be enhanced with SIEM, SOAR, ITSM, and other sources."
"The areas in the solution that have room for improvement include the UI/UX design, which should be improved, and they should integrate more artificial intelligence into the product."
"Although TotalCloud is a helpful tool, some of its advanced features are still under development."
"The patching process with Qualys Patch Management, which is part of TotalCloud, does not cover installing certain prerequisites on the servers or workstations. This shortcoming means we must rely on SCCM when any service stack updates or additional prerequisites are needed."
"Qualys TotalCloud needs to improve its accuracy for non-Windows operating systems."
"Enhancing clarity regarding its compliance capabilities would be beneficial, as the current scope is limited in geographic coverage."
"It can be improved in its support response. They usually take up to seven days to resolve the issue."
"An area for improvement is that CoreOS Clair doesn't provide information about the location of vulnerabilities it detects."
"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."
"Some initial setup and configuration were required by the admin side for enabling security policies, which were not supported initially."
"Regarding the platform's features and advantages, it is unfortunate that observability and some artificial intelligence functionality work fully only with a paid subscription."
"Additional features for a paid solution should be included, such as more detailed insights, better graphics, and an improved user interface."
"I wish the container could be more lightweight so that anyone can test and verify SUSE Rancher Prime."
"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."
"I have noticed that SUSE Rancher's GUI is slow because we have more than 1,000 pods, and when searching for a pod name, the page takes some time to load."
"There are a lot of issues in the tool, such as addressing the errors, addressing the stability, and addressing the reliability."
 

Pricing and Cost Advice

"Qualys TotalCloud is cost-efficient and was selected for its value compared to other products."
"Qualys TotalCloud is expensive, but it offers a premier solution with no headaches."
"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."
"It isn't cheap, but it's reasonable. It helps us to manage things with very few resources."
"Qualys TotalCloud is expensive."
"Qualys TotalCloud offers competitive pricing given its comprehensive suite of features, including integration, assessment, remediation, and detection capabilities, all within a single platform."
"The cost is high, but it meets our organizational needs."
"Qualys TotalCloud offers good pricing that is affordable and competitive with the market. Our partnership also provides us with additional benefits."
"CoreOS Clair is open-source and free of charge."
Information not available
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Top Industries

By visitors reading reviews
Manufacturing Company
17%
Financial Services Firm
14%
Construction Company
8%
Comms Service Provider
7%
Financial Services Firm
18%
Performing Arts
13%
Government
11%
Comms Service Provider
9%
Computer Software Company
24%
Outsourcing Company
13%
Financial Services Firm
10%
Comms Service Provider
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise4
Large Enterprise29
No data available
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise2
Large Enterprise7
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
Areas that need improvement in every solution include the remediation part. The remediation steps should be simple en...
What is your primary use case for Qualys TotalCloud?
Our use case involves the assets that we have under cloud, the assets exposed to the internet, and the internal appli...
What is your experience regarding pricing and costs for CoreOS Clair?
If you work with CoreOS or OpenShift, you don't need to pay for CoreOS separately. When you pay for OpenShift, you ge...
What needs improvement with CoreOS Clair?
It can be improved in its support response. They usually take up to seven days to resolve the issue.
What is your primary use case for CoreOS Clair?
We use the tool to manage and secure the event file system. CoreOS Clair is an operational system that is very simila...
What is your experience regarding pricing and costs for SUSE Rancher?
Currently, I am using the community version, so there is no licensing cost. We are currently considering using the su...
What needs improvement with SUSE Rancher?
It would be beneficial to have more support for the product.
What is your primary use case for SUSE Rancher?
Our main use case for SUSE Rancher is for Kubernetes as a Service for our cloud product. We have also used SUSE Ranch...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
No data available
 

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: June 2026.
902,988 professionals have used our research since 2012.