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Datadog vs Tenable Security Center comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jan 25, 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 enhances efficiency and automation, achieving up to 40% cost savings and over 50% improved asset scanning.
Sentiment score
6.4
Datadog improves efficiency by reducing response time, optimizing resources, enhancing reliability, and saving costs through better infrastructure monitoring.
Sentiment score
6.5
Tenable Security Center boosts ROI by minimizing costs, enhancing security, reducing manpower needs, and preventing costly data breaches.
We are able to scan all our assets with less human intervention and achieve overall effective outcomes.
Dns architect at a tech consulting company with 1,001-5,000 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
Previously we had thirteen contractors doing the monitoring for us, which is now reduced to only five.
IT Manager at Liberty Mutual Insurance
Datadog has delivered more than its value through reduced downtime, faster recovery, and infrastructure optimization.
Sr. Cloud Infrastructure Engineer at a tech vendor with 51-200 employees
We have also seen fewer escalations for minor issues because alerts help us catch problems earlier, which indirectly reduces downtime and improves overall efficiency.
Network Security Consultant at NTT DATA
If we cannot adjust how to operate the solution, then it becomes very difficult, so hearing and initial tuning are very important.
Marketing Expert at J's communication
Through the use of Tenable Security Center, my clients achieve more efficient patching and gain visibility and understanding of security operations, leading to improved resilience and infrastructure insight.
Solution engineer at EXPERTience
 

Customer Service

Sentiment score
6.7
Qualys TotalCloud's customer service is praised for responsiveness despite occasional delays, with ratings from seven to ten.
Sentiment score
6.7
Datadog's customer service is generally reliable and efficient, with recent improvements noted, despite occasional delays and communication issues.
Sentiment score
7.4
Tenable Security Center customer support is responsive and knowledgeable, with U.S. support rated higher than the European counterpart.
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
When I have additional questions, the ticket is updated with actual recommendations or suggestions pointing me in the correct direction.
Applications Web Services Technical Engineer at Ace Hardware
Overall, the entire Datadog comprehensive experience of support, onboarding, getting everything in there, and having a good line of feedback has been exceptional.
Systems Administrator at Townsquare Interactive
I've had a couple instances where I reached out to Datadog's support team, and they have been really super helpful and very kind, even reaching back out after resolving my issues to check if everything's going well.
Security Engineer at Invitation Homes
Longer response times and less thorough assistance.
Solution engineer at EXPERTience
They are helpful and were very helpful to us, coordinating with us on several issues.
Head of Information Security at a consultancy with 1,001-5,000 employees
 

Scalability Issues

Sentiment score
7.4
Qualys TotalCloud is highly scalable and adaptable, efficiently supporting varied environments and large-scale deployments with robust performance.
Sentiment score
7.5
Datadog excels in scalable performance and integration but requires careful ingestion cost management as environments grow.
Sentiment score
8.0
Tenable Security Center is praised for its seamless scalability, adaptability, and integration, accommodating diverse organizational needs and sizes effectively.
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
Datadog's scalability has been great as it has been able to grow with our needs.
IT Manager at Liberty Mutual Insurance
Since it is a SaaS platform, we did not have to worry about backend scaling.
Network Security Consultant at NTT DATA
We have not faced any major performance issues from the platform side; it handles increased metrics and monitoring loads smoothly.
Cyber Security Consultant at HR Software Solution
I can scale it extensively with the use of agents, allowing scanning in restrictive environments and loosely connected devices.
Solution engineer at EXPERTience
Scalability is a bit limited with Tenable Security Center.
Cyber Security Consultant at a tech services company with 1-10 employees
 

Stability Issues

Sentiment score
8.4
Qualys TotalCloud is stable and reliable, offering 99.9% uptime with quick support for minor issues and transparent maintenance updates.
Sentiment score
8.0
Datadog is praised for stability and reliability, with rare, quickly-resolved issues, especially during peak traffic periods.
Sentiment score
8.0
Tenable Security Center is highly stable and reliable, handling large tasks efficiently with users rating its stability highly.
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
Metrics collection and alerting have been consistent in day-to-day use.
Cyber Security Consultant at HR Software Solution
Datadog is very stable, as there hasn't been any downtime or issues since I've been here, and it's always on time.
Security Engineer at Invitation Homes
Datadog seems stable in my experience without any downtime or reliability issues.
Full Stack Developer at Townsquare Interactive
The stability of the solution is outstanding.
Solution engineer at EXPERTience
 

Room For Improvement

Qualys TotalCloud requires UI improvements, better cloud integration, enhanced support, and optimized reporting, onboarding, and vulnerability detection.
Datadog needs better alert management, cost control, data representation, API consistency, integration, security, automation, navigation, and educational resources.
Users desire improved reporting, third-party integration, interface design, vulnerability handling, web scanning, pricing, support, and user-friendly 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
It would be great to see stronger AI-driven anomaly detection and predictive analytics to help identify potential issues before they impact performance.
Operations Manager at a financial services firm with 1,001-5,000 employees
We want to be able to customize the cost part, and we would appreciate more granular access control.
Service Manager at PwC
Having more transparent and granular cost control features would make it easier to manage usage.
Network Security Consultant at NTT DATA
It's important for Tenable to catch up on testing capabilities that are present in solutions like Qualys.
Cyber Security Consultant at a tech services company with 1-10 employees
The reports and plugins for reports and scans could benefit from enhancements.
IT Helpdesk at a manufacturing company with 51-200 employees
Translating reports into European languages is especially relevant in Central Eastern Europe, where clients often require reports in local languages.
Solution engineer at EXPERTience
 

Setup Cost

Qualys TotalCloud is costly but justified for large companies due to features, flexibility, and VMware integration efficiencies.
Datadog offers scalable, usage-based pricing but requires careful monitoring to manage escalating costs and optimize feature utilization.
Tenable Security Center is costly per asset, with options including subscription and perpetual licenses, generally pricier than competitors.
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 setup cost for Datadog is more than $100.
Senior Performance and Architecture Analyst at a manufacturing company with 10,001+ employees
Pricing is mainly based on data ingestion, such as logs, metrics, and traces, and it can increase quickly if everything is enabled by default.
Cyber Security Consultant at HR Software Solution
Everybody wants the agent installed, but we only have so many dollars to spread across, so it's been difficult for me to prioritize who will benefit from Datadog at this time.
Applications Web Services Technical Engineer at Ace Hardware
The product is somewhat pricey, reflecting its valuable features and status as a high-quality solution in the vulnerability management market.
IT Helpdesk at a manufacturing company with 51-200 employees
Tenable Security Center is quite expensive, particularly for the CEE region, causing us to lose cases due to its pricing.
Solution engineer at EXPERTience
The price of Tenable Security Center is not so high; it's relatively a cheaper solution.
Marketing Expert at J's communication
 

Valuable Features

Qualys TotalCloud offers efficient asset discovery, security posture management, and vulnerability management with excellent integration and threat intelligence features.
Datadog enhances operational efficiency with unified visibility, integration, customizable dashboards, and comprehensive monitoring across cloud platforms.
Tenable Security Center offers comprehensive vulnerability management with intuitive tools, strong integration, and flexible compliance for effective threat detection.
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
Our architecture is written in several languages, and one area where Datadog particularly shines is in providing first-class support for a multitude of programming languages.
Senior Software Engineer at Los Angeles Times Communications, LLC
Having all that associated analytics helps me in troubleshooting by not having to bounce around to other tools, which saves me a lot of time.
Senior Site Reliability Engineer at a wholesaler/distributor with 5,001-10,000 employees
Datadog was able to find the alerts and trigger to notify our team in a very prompt manner before it got worse, allowing us to promptly adjust and remediate the situation in time.
Security Engineer at Invitation Homes
We obtained good reports showing when patches were closed and the details of each patch, including who executed it and everything related to the patching process until it was closed.
Head of Information Security at a consultancy with 1,001-5,000 employees
Tenable Security Center provides an overall score of vulnerabilities, comparing an organization with others in the same industry.
IT Helpdesk at a manufacturing company with 51-200 employees
The most effective feature of Tenable Security Center for detecting vulnerabilities is its capability for critical mapping.
Cyber Security Consultant at a tech services company with 1-10 employees
 

Categories and Ranking

Qualys TotalCloud
Sponsored
Ranking in Cloud Security Posture Management (CSPM)
8th
Average Rating
8.6
Reviews Sentiment
7.1
Number of Reviews
46
Ranking in other categories
Vulnerability Management (11th), Container Security (11th), Cloud Workload Protection Platforms (CWPP) (8th), SaaS Security Posture Management (SSPM) (2nd), Cloud-Native Application Protection Platforms (CNAPP) (7th)
Datadog
Ranking in Cloud Security Posture Management (CSPM)
6th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
211
Ranking in other categories
Application Performance Monitoring (APM) and Observability (1st), Network Monitoring Software (3rd), IT Infrastructure Monitoring (1st), Log Management (3rd), Container Monitoring (3rd), Cloud Monitoring Software (1st), AIOps (1st), AI Observability (1st)
Tenable Security Center
Ranking in Cloud Security Posture Management (CSPM)
22nd
Average Rating
8.2
Reviews Sentiment
7.2
Number of Reviews
56
Ranking in other categories
Vulnerability Management (15th), Risk-Based Vulnerability Management (8th)
 

Mindshare comparison

As of September 2026, in the Cloud Security Posture Management (CSPM) category, the mindshare of Qualys TotalCloud is 2.0%, up from 1.4% compared to the previous year. The mindshare of Datadog is 2.6%, up from 1.9% compared to the previous year. The mindshare of Tenable Security Center is 1.5%, down from 1.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Cloud Security Posture Management (CSPM) Mindshare Distribution
ProductMindshare (%)
Datadog2.6%
Qualys TotalCloud2.0%
Tenable Security Center1.5%
Other93.9%
Cloud Security Posture Management (CSPM)
 

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.
Dhroov Patel - PeerSpot reviewer
Site Reliability Engineer at Grainger
Has improved incident response with better root cause visibility and supports flexible on-call scheduling
Datadog needs to introduce more hard limits to cost. If we see a huge log spike, administrators should have more control over what happens to save costs. If a service starts logging extensively, I want the ability to automatically direct that log into the cheapest log bucket. This should be the case with many offerings. If we're seeing too much APM, we need to be aware of it and able to stop it rather than having administrators reach out to specific teams. Datadog has become significantly slower over the last year. They could improve performance at the risk of slowing down feature work. More resources need to go into Fleet Automation because we face many problems with things such as the Ansible role to install Datadog in non-containerized hosts. We mainly want to see performance improvements, less time spent looking at costs, the ability to trust that costs will stay reasonable, and an easier way to manage our agents. It is such a powerful tool with much potential on the horizon, but cost control, performance, and agent management need improvement. The main issues are with the administrative side rather than the actual application.
reviewer1534134 - PeerSpot reviewer
Head of Information Security at a consultancy with 1,001-5,000 employees
Centralized analytics have strengthened patch visibility and support efficient regulatory reporting
From my experience, I assess the product's analytics capabilities as successful. It helped us significantly with patching and managing the risk of the patching process across all our environments, including network devices with Windows and Unix systems. The product covered several environments and gave us exactly what we needed in our environment. Tenable Security Center's centralized platform helped with risk assessment and management across our IT environments. It covered the patching process, and we previously faced many issues regarding how to patch different environments, how to monitor the patching process, and whether it was successful or not. We obtained good reports showing when patches were closed and the details of each patch, including who executed it and everything related to the patching process until it was closed. This gave us good details about the process which helped us significantly in our reporting and even in audits, whether internal or external. We learned how to close audit issues safely and successfully. We used the dashboards for real-time threat insights and extracted several dashboards from Tenable Security Center. We use these dashboards in our cybersecurity dashboard and committees that we have. These dashboards are part of our committees, especially the cybersecurity committee and other committees that we attend.
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Top Industries

By visitors reading reviews
Comms Service Provider
16%
Outsourcing Company
12%
Manufacturing Company
11%
Financial Services Firm
10%
Financial Services Firm
14%
Manufacturing Company
9%
Outsourcing Company
7%
Computer Software Company
7%
Financial Services Firm
11%
Manufacturing Company
11%
Outsourcing Company
8%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business14
Midsize Enterprise5
Large Enterprise34
By reviewers
Company SizeCount
Small Business81
Midsize Enterprise50
Large Enterprise100
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise12
Large Enterprise27
 

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...
Any advice about APM solutions?
There are many factors and we know little about your requirements (size of org, technology stack, management systems,...
Datadog vs ELK: which one is good in terms of performance, cost and efficiency?
With Datadog, we have near-live visibility across our entire platform. We have seen APM metrics impacted several time...
Which would you choose - Datadog or Dynatrace?
Our organization ran comparison tests to determine whether the Datadog or Dynatrace network monitoring software was t...
What is your experience regarding pricing and costs for Tenable SC?
The price of Tenable Security Center is not so high; it's relatively a cheaper solution.
What needs improvement with Tenable SC?
We did conduct a long implementation which relates to what I think can be improved about Tenable Security Center. In ...
What is your primary use case for Tenable SC?
The typical use case for Tenable Security Center is that it is an on-premise solution, and it can use the agent and a...
 

Also Known As

Qualys TotalCloud with FlexScan
No data available
Tenable.sc, Tenable Unified Security, Tenable SecurityCenter
 

Overview

 

Sample Customers

Information Not Available
Adobe, Samsung, facebook, HP Cloud Services, Electronic Arts, salesforce, Stanford University, CiTRIX, Chef, zendesk, Hearst Magazines, Spotify, mercardo libre, Slashdot, Ziff Davis, PBS, MLS, The Motley Fool, Politico, Barneby's
IBM, Sempra Energy, Microsoft, Apple, Adidas, Union Pacific
Find out what your peers are saying about Datadog vs. Tenable Security Center and other solutions. Updated: August 2026.
913,683 professionals have used our research since 2012.