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The NodeZero Platform by Horizon3.ai vs VulnCheck comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Feb 8, 2026

Review summaries and opinions

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

ROI

Sentiment score
5.3
Qualys TotalCloud effectively reduces costs and labor while enhancing asset visibility and risk management, boosting efficiency by up to 40%.
Sentiment score
3.8
NodeZero Platform cuts pen testing costs, boosts efficiency, and enables unlimited testing, leading to savings and positive feedback.
Sentiment score
7.1
VulnCheck improved vulnerability management efficiency, reducing threat triage time and high-risk vulnerabilities, boosting security operations effectiveness.
We are able to scan all our assets with less human intervention and achieve overall effective outcomes.
Dns architect at a outsourcing company with 5,001-10,000 employees
It has saved about 90% of our time.
Senior Consultant at a consultancy with 10,001+ employees
TotalCloud has generated overall savings of 30 to 40 percent across various departments.
Security Manager at a consultancy with 10,001+ employees
A reduction in remediation time has been seen because it is finding things before they happen.
Director of Enterprise Security at a energy/utilities company with 51-200 employees
Being able to find them because there have been no eyes on that particular section so far ever, and fixing those potentially prevented those companies from getting breached.
IT Security Consultant at Systemhaus for you GmbH
So far, I have seen a return on investment with The NodeZero Platform by Horizon3.ai, as we managed to save a lot of time and effort with this because this is an autonomous tool, and our manual effort is significantly reduced because of a product of this type.
Senior Manager | Manager Security Services at RISK ASSOCIATES
VulnCheck detects exploitable vulnerabilities days to weeks earlier than alternatives, with customer detection averaging just under six and a half days sooner than most competing products.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
VulnCheck reduces the time spent manually researching exploitability and threat context for individual CVEs, allowing the team to focus on the vulnerabilities that need immediate attention.
Soc Analyst at a manufacturing company with 10,001+ employees
Since using VulnCheck, we see a significant return on investment as we no longer spend excessive time on scanning, which was an issue with Rapid7.
SOC L2 Analyst at a tech services company with 51-200 employees
 

Customer Service

Sentiment score
6.7
Qualys TotalCloud support is knowledgeable but inconsistent, with some delays and varying service quality affecting customer satisfaction.
Sentiment score
7.1
NodeZero Platform offers swift, effective customer support with high satisfaction, despite minor mid-contract licensing concerns.
Sentiment score
7.3
VulnCheck's support is praised for its responsiveness, knowledgeable team, and high ratings, despite needing faster resolutions on complex issues.
They are helpful, respond to my queries, and can answer any question.
Developer at a consultancy with 10,001+ employees
Qualys's tech support is highly responsive, providing multiple ways to interact with them.
Service Manager, Security Operations at CDA IT SOLUTIONS
Qualys' customer service provides quality answers, but the response time is long, even though it is within the SLA.
Works at a consultancy with 10,001+ employees
Overall, when it comes to The NodeZero Platform's tech support, you can reach them via a chat message on their website, and they respond almost immediately.
Director of IT Security at a manufacturing company with 1,001-5,000 employees
Previously, with time-sensitive engagements, I would worry about resolving issues before deadlines. That concern has diminished as they've become more responsive and require less escalation to engineering.
Principal Consultant at JTI Cybersecurity
The vast majority of times they are able to resolve the exact questions my team has on the first attempt, which is really good for customer or technical support.
Chief Information Officer at a construction company with 1,001-5,000 employees
I will give the customer support a rating of 10 out of 10.
MANAGER IT at Axis Bank
Support for VulnCheck is very responsive, active, and helpful.
Manager at Cyvogenix
Overall, the customer support for VulnCheck has been good; the team has been responsive when we have had questions about the platform or needed help understanding specific intelligence.
Cybersecurity Executive at Gigabit Technologies Pvt Ltd
 

Scalability Issues

Sentiment score
7.4
Qualys TotalCloud efficiently scales across multi-cloud environments, supporting diverse needs for small and large teams with minimal issues.
Sentiment score
7.2
The NodeZero Platform by Horizon3.ai excels in scalability, adaptability, and extensive network coverage for large-scale security deployments.
Sentiment score
7.5
VulnCheck efficiently scales for growing security environments, managing increased workloads without performance loss and integrates seamlessly with workflows.
We started our organization about nine months back. We started with about 30 users, and we now have more than 100 users.
CIO at a venture capital & private equity firm with 11-50 employees
Our organization currently uses it to manage over 1200 web applications.
Analyst, Information Security at Infosys
It is absolutely scalable, and I would rate its scalability as nine out of ten.
retired at a consultancy with 10,001+ employees
We have conducted pen tests in environments with hundreds of thousands of IP addresses without any scalability issues.
CEO at cybovate
We currently scan approximately 1,500-2,000 assets and haven't encountered any scaling or throughput issues.
Information Security Manager at a non-profit with 51-200 employees
The platform offers various insider threats, segmentation tests, phishing tests, and PCI DSS tests.
Head Dig IT Al And Response/ Consultant at a tech services company with 11-50 employees
VulnCheck scales exceptionally in our organization, regardless of size.
SOC L2 Analyst at a tech services company with 51-200 employees
VulnCheck scales well because it is cloud-based and API-driven, so it can support growing volumes of vulnerability and threat intelligence data without requiring significant additional infrastructure.
Soc Analyst at a manufacturing company with 10,001+ employees
VulnCheck has good scalability, as it has handled an increasing number of assets and vulnerabilities as our organization is growing.
Soc Analyst at a manufacturing company with 10,001+ employees
 

Stability Issues

Sentiment score
8.4
Qualys TotalCloud is praised for its stability, 99.9% uptime, reliable performance, and responsive support for resolving issues.
Sentiment score
8.3
The NodeZero Platform is noted for its stability, minimal issues, easy resolution, and smooth production performance despite rare downtimes.
Sentiment score
8.7
VulnCheck offers reliable, stable performance with consistent uptime, uninterrupted assessments, and positive user feedback for security analysis.
Overall, the support provided has been excellent.
Analyst, Information Security at Infosys
It has a lot of scanning mechanisms, which are agentless APIs, eBPF, and cloud agents, that are highly reliable.
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
It is a stable solution, which is why we chose it.
CIO at a venture capital & private equity firm with 11-50 employees
We have not encountered any issues on the platform regarding accessibility, performance, or stability.
CEO at cybovate
Regarding stability, it has never crashed, and there has not been any lagging from deployment or running.
Director of Enterprise Security at a energy/utilities company with 51-200 employees
I would rate the stability of The NodeZero Platform by Horizon3.ai as a ten.
Senior Manager | Manager Security Services at RISK ASSOCIATES
We haven't experienced any downtime or reliability issues.
Soc Analyst at a manufacturing company with 10,001+ employees
The platform has been consistent when accessing vulnerability and exploit intelligence.
Cybersecurity Executive at Gigabit Technologies Pvt Ltd
 

Room For Improvement

Qualys TotalCloud needs UI/UX enhancements, better integrations, compliance reporting, Windows container security, AI threat prediction, and pricing clarity.
NodeZero Platform needs improvements in testing, scalability, integration, usability, automation, and reporting for better user experience and efficiency.
VulnCheck needs UI improvements, better tool integration, detailed insights, automation, notification customization, and more AI-driven features.
Ideally, the scanner should automatically detect and scan all subdomains, even if not explicitly defined, ensuring comprehensive vulnerability assessment.
Analyst, Information Security at Infosys
Ideally, updates should be more immediate, enabling quicker implementation of solutions.
Project Lead at Persistent Systems
Our goal is to integrate all these functions into Qualys, creating a single dashboard for comprehensive security monitoring and management.
Senior Information Security Engineer at a consultancy with 10,001+ employees
This service reveals which credentials and email addresses are available on the deep web, as well as which domains have been set up using typo-squatting techniques.
Information Security Manager at a non-profit with 51-200 employees
The one thing that is very much asked from us as a service provider is DAST testing, so when a company is building a software, they could see their current security status while they are building the application.
Offensive Security Analyst at a tech services company with 201-500 employees
If that pen test could be load balanced on more than one system, I believe The NodeZero Platform by Horizon3.ai could leverage that system and complete penetration tests in a much quicker time frame, providing quicker results to customers.
Lead Security Engineer at a healthcare company with 10,001+ employees
You will require other tools to act on the data that you find, which necessitates engineering time for API integration, data mapping, and tuning.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
If VulnCheck works on the inventory of the software my organization uses, it would be really helpful.
Sr Network and Security Engineer at a outsourcing company with 201-500 employees
More customization in dashboards and reporting would be helpful for management-level insights.
Manager at Cyvogenix
 

Setup Cost

Qualys TotalCloud offers competitive pricing for large enterprises, providing flexible, cost-effective solutions with comprehensive features and benefits.
Horizon3.ai's NodeZero Platform is praised for cost-efficiency, flexible IP-based licensing, and stable, competitively advantageous pricing.
Enterprise users appreciate VulnCheck's transparent, flexible pricing model and find it reasonable, particularly for threat intelligence capabilities and scalability.
Qualys TotalCloud's pricing is currently acceptable, it is becoming increasingly expensive.
Senior Manager at a financial services firm with 10,001+ employees
Pricing is managed by our finance team; however, Qualys TotalCloud offers cost-effective licensing flexibility.
IT Manager at a consultancy with 10,001+ employees
Qualys TotalCloud is expensive, but it offers a premier solution with no headaches.
Vice President at Inspira Enterprise
The pricing is much more affordable than traditional penetration tests.
Manager, Information Technology at a performing arts with 11-50 employees
It's a bit cheaper than manual penetration testing because manual testing typically allows you to scan only a few subnets.
Works at a hospitality company with 201-500 employees
Usually, manual penetration test scans take considerable time and money.
Security Engineer at Herjavec Group
Currently, I find the pricing of VulnCheck to be reasonable and not much expensive.
Sr Network and Security Engineer at a outsourcing company with 201-500 employees
The pricing is reasonable for the value VulnCheck provides, especially for threat intelligence.
Manager at Cyvogenix
 

Valuable Features

Qualys TotalCloud enhances cloud security with risk prioritization, automation, and visibility, boosting efficiency in vulnerability management and remediation.
NodeZero Platform simplifies vulnerability management with automated scans, real attack simulations, and streamlined processes, enhancing overall cybersecurity.
VulnCheck enhances security with real-time vulnerability insights, seamless integrations, and risk-based prioritization, improving efficiency and reducing response times.
This view of risk helps reduce the work we would have to do to combine multiple sources to prioritize risk.
Works at a consultancy with 10,001+ employees
It will help cybersecurity professionals monitor the cloud and find vulnerabilities.
Developer at a consultancy with 10,001+ employees
We are enjoying the new feature, FlexScan, which is valuable for Internet-facing VMs.
Senior Consultant at a consultancy with 10,001+ employees
When a new vulnerability, such as a zero-day exploit, is identified, they review your previous scans to determine if you might be vulnerable to it, and they proactively notify you.
Director of IT Security at a manufacturing company with 1,001-5,000 employees
The detailed reports not only list the vulnerabilities that matter, but they also include direct links to patches.
Information Security Manager at a non-profit with 51-200 employees
The NodeZero Platform's real attack capabilities help in identifying vulnerabilities on our on-prem systems because it provides actual vulnerabilities by attacking our systems.
Chief Information Security Officer at a construction company with 1,001-5,000 employees
The main feature of VulnCheck is its ability to cut down all the noise and provide a scoring of how you are going to get attacked and breached.
Partner Account Manager at a wholesaler/distributor with 51-200 employees
VulnCheck helps us identify which vulnerabilities are being actively exploited or are listed as similar to known exploited vulnerabilities.
Manager at Cyvogenix
The detailed descriptions of all present vulnerabilities along with emerging threats, well-documented details, and frequent updates of threat intelligence contribute significantly to reducing the remediation workload by prioritizing the vulnerabilities that matter most.
SOC L2 Analyst at a tech services company with 51-200 employees
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Vulnerability Management
10th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
46
Ranking in other categories
Container Security (11th), Cloud Workload Protection Platforms (CWPP) (9th), Cloud Security Posture Management (CSPM) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
The NodeZero Platform by Ho...
Ranking in Vulnerability Management
7th
Average Rating
8.8
Reviews Sentiment
6.0
Number of Reviews
29
Ranking in other categories
Advanced Threat Protection (ATP) (13th), Penetration Testing Services (1st), Breach and Attack Simulation (BAS) (1st), Risk-Based Vulnerability Management (3rd), AI-Powered Penetration Testing (1st)
VulnCheck
Ranking in Vulnerability Management
19th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Vulnerability Management category, the mindshare of Qualys TotalCloud is 1.2%, up from 1.0% compared to the previous year. The mindshare of The NodeZero Platform by Horizon3.ai is 1.4%, up from 1.2% compared to the previous year. The mindshare of VulnCheck is 0.4%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Vulnerability Management Mindshare Distribution
ProductMindshare (%)
The NodeZero Platform by Horizon3.ai1.4%
Qualys TotalCloud1.2%
VulnCheck0.4%
Other97.0%
Vulnerability Management
 

Featured Reviews

reviewer2859021 - PeerSpot reviewer
Sr Security Engineer at a tech vendor with 5,001-10,000 employees
Risk-based triage has transformed container security and now prioritizes high-impact threats
The best features Qualys TotalCloud offers currently include managing cloud infrastructure and container security while facing major challenges such as alert fatigue. Traditional vulnerability scanners flag hundreds of CVEs on short-lived Kubernetes containers, some of which have no internet exposure or are gone before we can even triage them. I leverage Qualys TotalCloud to move beyond static CVSS. I use it to implement runtime exposure, correlation risk reprioritization, and shift-left integration. This notifies developers to fix a base image upstream rather than patching live ephemeral instances. In my work with cloud and container security, the biggest operational hurdle was alert fatigue. I use Qualys to shift left from static CVSS severity to context-aware risk prioritization. I correlated raw vulnerability data with real-time risk factors such as public network exposure, active runtime execution, or overly permissive IAM roles. This allows us to immediately drop the priority of isolated containers and escalate lower-severity CVEs that sit on an exposed, high-risk path. We can map these findings directly back to our CI/CD pipelines so developers can patch the root base images upstream. We have drastically cut down the signal-to-noise ratio, saved a lot of manual hours doing triage work, and ensured engineering effort goes directly towards high-impact risk reduction.
Brent Hamlin - PeerSpot reviewer
Infrastructure Manager at a construction company with 501-1,000 employees
Continuous threat scanning has improved remediation time and strengthened executive reporting
The best features that The NodeZero Platform by Horizon3.ai offers include the automated scans, which are great to use; you set it, scope it, and let it go, which works really well. The executive reporting feature is impactful for me as a manager, providing a strong foundation to give quarterly and yearly reports to our executives and board to see the state of our infrastructure from a security standpoint. The level of detail and clarity in the executive reports from The NodeZero Platform by Horizon3.ai absolutely helps me communicate effectively with leadership. They are detailed enough for me to extract the necessary information tailored for the executives and to provide a broader perspective on our mitigation efforts or accepted risk stance and where additional controls exist. The NodeZero Platform by Horizon3.ai has positively impacted my organization by giving us a better continuous picture of our security posture, what's exploitable, and what can be used against the organization. It allows us to run scans whenever needed, unlike a single third-party system that only provides a snapshot in time; our processes must be ongoing as the security landscape is dynamic. NodeZero's endpoint security effectiveness feature impacts my understanding of potential security threats by providing a clear picture of both the external and internal landscapes within my organization, enabling me to prioritize and adjust as needed for vulnerabilities such as WordPress plugin issues or user enumerations and software code version assessments. I have built The NodeZero Platform by Horizon3.ai into our weekly and monthly workflows for security CI/CD, and we scan our externally accessible assets every week to address anything quickly if it comes up. That includes our firewalls, websites, and anything that is an external web server, which we scan weekly, while the monthly scans are for internal systems that feed our security CI/CD pipeline, enabling us to action across and prioritize any vulnerabilities caught by The NodeZero Platform by Horizon3.ai.
Vsadalaga Sadalga - PeerSpot reviewer
Soc Analyst at a manufacturing company with 10,001+ employees
Improved threat intelligence has enabled us to prioritize exploitable vulnerabilities efficiently
In my opinion, the best features VulnCheck offers are its vulnerability intelligence, exploitation tracking, and risk-based prioritization. I find the threat context especially useful because it helps us identify vulnerabilities that are more likely to be exploited and focus our remediation efforts accordingly. The exploitation tracking feature has helped my team because it helps us understand which vulnerabilities are being actively exploited or are more likely to be targeted. This gives us better context when prioritizing vulnerabilities and helps the team focus on urgent remediation instead of treating all vulnerabilities equally. Another useful feature is threat intelligence context around vulnerabilities. It helps us connect vulnerability information with real-world threats, which makes prioritization and communication with the vulnerability management team easier. Overall, it helps us focus on the vulnerabilities that present the most immediate risk. VulnCheck has impacted my organization positively by helping us improve how we prioritize vulnerabilities by giving us better threat and exploitation context. Instead of focusing only on severity scores, we can identify vulnerabilities that have a higher likelihood of being exploited. This helps us use our security resources more effectively and respond to higher risk vulnerabilities faster. VulnCheck has helped us improve vulnerability prioritization and reduce the time spent reviewing a large number of vulnerabilities. We are able to focus faster on vulnerabilities with active exploitation and higher threat relevance. I do not have a specific organization-wide metric to share, but the main improvements have been more efficient prioritization and better context of remediation decisions.
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Top Industries

By visitors reading reviews
Comms Service Provider
16%
Outsourcing Company
12%
Manufacturing Company
11%
Financial Services Firm
10%
Comms Service Provider
9%
Manufacturing Company
8%
Outsourcing Company
8%
Government
7%
Outsourcing Company
31%
Construction Company
11%
Financial Services Firm
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise6
Large Enterprise35
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise5
Large Enterprise12
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise8
 

Questions from the Community

What needs improvement with Qualys TotalCloud?
In terms of improvement, remediation still belongs to the cloud team, which is one of the issues we faced with Qualys...
What is your primary use case for Qualys TotalCloud?
My main use case for Qualys TotalCloud is regarding the cloud visibility that we were not having previously. Previous...
What needs improvement with Horizon3.ai?
The NodeZero Platform by Horizon3.ai could be improved if automated fixes could be implemented, which would be fantas...
What is your primary use case for Horizon3.ai?
My main use case for The NodeZero Platform by Horizon3.ai is penetration testing for cybersecurity. A specific exampl...
What advice do you have for others considering Horizon3.ai?
The NodeZero Platform by Horizon3.ai's AI capabilities demonstrate very good governance and security, which I like ve...
What needs improvement with VulnCheck?
VulnCheck is a really good tool, but it could be improved with a more user-friendly dashboard and also with more deta...
What is your primary use case for VulnCheck?
My primary day-to-day use case for VulnCheck is for vulnerability management, where I mainly use it to review finding...
What advice do you have for others considering VulnCheck?
My advice would be to start with a clear vulnerability management goal and integrate VulnCheck with your existing sec...
 

Also Known As

Qualys TotalCloud with FlexScan
Horizon3.ai
No data available
 

Overview

 

Sample Customers

Information Not Available
Government agencies, Defense Industrial Base organizations, and enterprises in regulated industries such as finance, healthcare, manufacturing, and criticalinfrastructure rely on NodeZero to meet rigorous security and compliance requirements with continuous, scheduled, and on-demand testing.
Information Not Available
Find out what your peers are saying about The NodeZero Platform by Horizon3.ai vs. VulnCheck and other solutions. Updated: September 2026.
915,341 professionals have used our research since 2012.