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Invicti Web + API vs Nucleus Security comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Oct 6, 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
6.8
Acunetix improves security by identifying vulnerabilities, saving time and money, though ROI is variable but valued by many.
Sentiment score
7.3
Nucleus Security enhances time savings and workflow efficiency through task automation, improving resource allocation and engineering productivity.
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
It saves a significant amount of time by covering attack surfaces.
Information Security Engineer at Tübitak Bilgem
I have seen a return on investment, as Acunetix helps reduce the man-days and effort needed for scanning bulk applications through automated assessments.
Senior Engineer - Penetration Tester at a government with 10,001+ employees
With security, it is always hard to quantify, and we did not really save money, but we used time more effectively and changed our way of working.
Cyber Security Architect at a retailer with 10,001+ employees
We have seen an absolutely clear return on investment in Nucleus Security, and it primarily shows up in massive time savings and vastly improved resource utilization.
Manager at a computer software company with 201-500 employees
Automation handles reporting on a scheduled basis and alerts system owners about their posture each week.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 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
6.7
Acunetix customer service is responsive and helpful, though some users note delays and prefer reseller involvement for better support.
Sentiment score
8.2
Nucleus Security's customer service is highly praised for being reliable, effective, and offering helpful, timely responses, ensuring strong satisfaction.
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
For high-severity issues, they reach out within two to three hours, and for critical issues, a response is received within 15 minutes.
Lead Cybersecurity at TBO
The technical support from Invicti is very good and fast.
Information Security Engineer at Tübitak Bilgem
Support staff not being familiar with the problem.
Senior Engineer - Penetration Tester at a government with 10,001+ employees
I would describe Nucleus Security's customer support as absolutely fantastic.
Manager at a computer software company with 201-500 employees
Customer support is great; I have always had communication with executive leaders, been able to have roadmap calls, and talk with support.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

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
7.0
Acunetix is versatile for large environments, easy to scale, but licensing and compatibility can be challenging for some.
Sentiment score
8.5
Nucleus Security offers seamless scalability, enhancing performance, supporting growth, and managing extensive assets with an efficient centralized interface.
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
Acunetix can handle increasing workloads and more applications easily.
Senior Engineer - Penetration Tester at a government with 10,001+ employees
The platform has done a great job of handling both stability and scalability excellently.
Manager at a computer software company with 201-500 employees
The scalability of Nucleus Security is fairly impressive; even when ingesting multiple assets, there is no noticeable impact.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 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
8.2
Acunetix is reliable, with stable performance, minimal issues, easy maintenance, and consistent results without unexpected downtimes.
Sentiment score
8.4
Nucleus Security is praised for stability and reliability, performing well under heavy loads and large automation tasks.
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 rarely, if ever, encounter downtime or performance degradation, even when the platform is running massive automation rules and background synchronization tasks during peak operational hours.
Manager at a computer software company with 201-500 employees
 

Room For Improvement

Qualys TotalCloud needs UI/UX enhancements, better integrations, compliance reporting, Windows container security, AI threat prediction, and pricing clarity.
Acunetix users want better accuracy, integration, ease of use, and support due to high costs and limited features.
Nucleus Security requires intuitive UI, enhanced reporting, streamlined integration, and better onboarding with customizable dashboards and exposure management.
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
The main concern is related to false positives; Acunetix needs to work on identifying valid and invalid findings.
Lead Cybersecurity at TBO
I could supply it with maybe a Swagger file or a JSON file, and Acunetix would pick it up, scan all the endpoints according to the OWASP Top Ten, and give me remediation and actionable remediation reports.
Team Lead, Application Security at a financial services firm with 5,001-10,000 employees
Acunetix should have better integration with newer tools such as GitHub and Azure DevOps.
CEO at Xcelliti
Nucleus Security needs a better view into exposure management, as exposure management and attack path management are missing.
Cyber Security Architect at a retailer with 10,001+ employees
Having more intuitive step-by-step visualized wizards or guided templates for building complex triage workflows would make the onboarding process much smoother for new team members.
Manager at a computer software company with 201-500 employees
It could be integrated with SentinelOne, but it was not showing any SentinelOne alerts.
Head of Security at a consultancy with 51-200 employees
 

Setup Cost

Qualys TotalCloud offers competitive pricing for large enterprises, providing flexible, cost-effective solutions with comprehensive features and benefits.
Acunetix pricing is considered high, with criticism over transparency and complexity, though some appreciate its value despite increases.
Enterprise users appreciate Nucleus Security's competitive pricing, straightforward licensing, and value-driven features despite initial costs.
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 cost is affordable for small and mid-sized organizations, and when compared to Checkmarx, it is significantly affordable, as Checkmarx is quite expensive.
Lead Cybersecurity at TBO
We secured a special licensing model for penetration testing companies, which is cost-effective.
Information Security Engineer at Tübitak Bilgem
The pricing of Acunetix is pretty expensive and could be improved.
Senior Business Development Manager at Intouch World
The licensing model is straightforward, with one license across multiple assets for multiple connectors.
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
 

Valuable Features

Qualys TotalCloud enhances cloud security with risk prioritization, automation, and visibility, boosting efficiency in vulnerability management and remediation.
Acunetix provides comprehensive, accurate vulnerability identification and management with a user-friendly interface for cloud and on-premises deployment.
Nucleus Security enhances safety and efficiency by streamlining risk management, integrating tools, and prioritizing risks for faster remediation.
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
Its most valuable role is in enhancing security by identifying potential vulnerabilities efficiently.
Senior Business Development Manager at Intouch World
The solution is excellent at detecting SQL injection and cross-site scripting vulnerabilities.
CEO at Xcelliti
The best feature Acunetix offers is the centralized dashboard and the quality of reports it generates, which includes various options for selecting reports and developer options for directly sharing the reports with developers.
Senior Engineer - Penetration Tester at a government with 10,001+ employees
By centralizing everything, Nucleus Security has completely eliminated that friction and dramatically cut down on alert fatigue across our infrastructure and support teams because the platform prioritizes risk based on real-world threat intelligence.
Manager at a computer software company with 201-500 employees
The risk-based prioritization has helped my team focus on the most critical vulnerabilities by considering severity, asset context, and the remediation priorities.
Head of Security at a consultancy with 51-200 employees
The best features that Nucleus Security offers in my experience are the unified integrations with all of the different vulnerability management platforms.
Cyber Security Architect at a retailer with 10,001+ 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)
Invicti Web + API
Ranking in Vulnerability Management
30th
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
Application Security Tools (16th), Static Application Security Testing (SAST) (11th), DevSecOps (7th)
Nucleus Security
Ranking in Vulnerability Management
42nd
Average Rating
7.2
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Application Security Tools (29th), Risk-Based Vulnerability Management (14th), Continuous Threat Exposure Management (CTEM) (12th)
 

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.
Rahul Kumar - PeerSpot reviewer
Senior Engineer - Penetration Tester at a government with 10,001+ employees
Identifies vulnerabilities across bulk web applications but needs better support and cleaner reports
The best feature Acunetix offers is the centralized dashboard and the quality of reports it generates, which includes various options for selecting reports and developer options for directly sharing the reports with developers. The centralized dashboard of Acunetix gives visibility into the security aspects of mass applications; for instance, with more than 200 applications, it provides a valuable overview of findings and necessary fixes, along with a high-level summary that helps us achieve compliance through monthly and sometimes weekly scanning. In terms of reporting, Acunetix is excellent because it can generate different types of reports, such as an executive summary report, detailed reports, and developer reports that can be shared directly with developers. Acunetix positively impacts my organization by helping identify outdated libraries and applications, including legacy applications vulnerable to old attacks based on OWASP Top 10, thus aiding in compliance checks for PCI DSS and OWASP. Acunetix provides a centralized report with compliance-related aspects and a vulnerability timeline, effectively helping reduce vulnerabilities and save time.
reviewer2872923 - PeerSpot reviewer
Vulnerability And Compliance Manager at a insurance company with 5,001-10,000 employees
Unified vulnerability view has improved risk-based decisions but reporting still needs work
One of the main issues with Nucleus Security is its lack of reporting capability. The user interface resembles an early 2000s application style, and although its speed is decent, it could be improved as more data is ingested. The overall appearance and feel need work, especially compared to modern applications from Rapid7, Qualys, and Tenable, which have more engaging user interfaces. The reporting capability is severely lacking; not being able to filter to granularity or have custom built queries is an annoyance that needs an overhaul. Additionally, there are bugs that have not been resolved, such as when you create a report and remove an asset, the asset still appears in the report despite not being present in the system anymore, leading to issues that need to be addressed quickly. Nucleus Security can become a difficult investment because I already have a vulnerability management solution, and I question where Nucleus Security fits with its licensing model. While I acknowledge automation has been described, it would be amazing to control the entire vulnerability management workflow from Nucleus Security without needing to log onto other systems. Having controls or actions that can be sent from the console down to the scanner for rescans would be beneficial. If Nucleus Security is going down this path, it should ensure that it becomes a one-stop shop for vulnerability management across multiple applications.
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Top Industries

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

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 Business18
Midsize Enterprise7
Large Enterprise19
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise1
Large Enterprise4
 

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 is your primary use case for Acunetix Vulnerability Scanner?
In a typical enterprise environment, Acunetix is mainly used for visibility, detection, and investigation across netw...
What advice do you have for others considering Acunetix Vulnerability Scanner?
I advise that Acunetix is the best option. Invest time in proper initial configuration and scope definitions. The too...
What is your experience regarding pricing and costs for Acunetix?
Everything is perfect and good, including the pricing and all related aspects.
What is your experience regarding pricing and costs for Nucleus Security?
The licensing model is straightforward, with one license across multiple assets for multiple connectors. It is always...
What needs improvement with Nucleus Security?
While the platform is incredibly powerful, the initial configuration curve of Nucleus Security can be a bit steep. Wh...
What is your primary use case for Nucleus Security?
In the initial phase when we first brought Nucleus Security into our environment, instead of immediately pushing it i...
 

Also Known As

Qualys TotalCloud with FlexScan
AcuSensor
No data available
 

Overview

 

Sample Customers

Information Not Available
Joomla!, Digicure, Team Random, Credit Suisse, Samsung, Air New Zealand
Information Not Available
Find out what your peers are saying about Invicti Web + API vs. Nucleus Security and other solutions. Updated: September 2026.
915,533 professionals have used our research since 2012.