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Datadog vs Nagios XI vs Zabbix comparison

 

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:
 

ROI

Sentiment score
6.5
Datadog is praised for high ROI, cost-effectiveness, reducing downtime, optimizing infrastructure, and improving efficiency and reliability.
Sentiment score
6.6
Nagios XI enhances efficiency and time management but concerns about increased costs affect ROI perception across organizations.
Sentiment score
6.9
Zabbix is praised for being cost-effective and scalable, minimizing downtime, and eliminating high licensing fees for enterprises.
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
Datadog is something which I can 100% rely on, and it is very cost-effective and totally worth it.
Tech Ops Engineer at Zeller
 

Customer Service

Sentiment score
6.7
Datadog's support is responsive and helpful, though some users seek faster resolutions and consistent communication for complex issues.
Sentiment score
6.5
Nagios XI support is mixed; praised for responsiveness but criticized for high cost, complex licensing, and delayed responses.
Sentiment score
6.8
Zabbix support is well-regarded, with strong community forums, responsive staff, and effective local partners aiding various user needs.
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
It is so straightforward that I have never had to use the support.
CTO at Oic
 

Scalability Issues

Sentiment score
7.6
Datadog offers scalable performance across varied environments, integrates with cloud services, but requires budget monitoring as data grows.
Sentiment score
7.1
Nagios XI is scalable for small to medium environments but faces challenges in large infrastructures and cloud adaptability.
Sentiment score
6.9
Zabbix offers scalable, flexible monitoring with cost efficiency, though complex scaling and database management may require improvements for large deployments.
Datadog's scalability has been great as it has been able to grow with our needs.
IT Manager at Liberty Mutual Insurance
We did, as a trial, engage the AWS integration, and immediately it found all of our AWS resources and presented them to us.
Systems Administrator at Townsquare Interactive
Datadog's scalability is strong; we've continued to significantly grow our software, and there are processes in place to ensure that as new servers, realms, and environments are introduced, we're able to include them all in Datadog without noticing any performance issues.
Senior Custom Software Development Consultant at a tech vendor with 501-1,000 employees
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Zabbix is very scalable and lightweight.
CTO at Oic
Zabbix has high scalability.
CTO at Four Nine Agency
I would rate its scalability ten out of ten.
Manager, Information Technology Zara & Inditex at Cenomi
 

Stability Issues

Sentiment score
8.0
Datadog is praised for its stability, consistent uptime, swift issue resolution, and robust performance, even during peak times.
Sentiment score
7.3
Nagios XI is stable, but large deployments may experience performance issues, database problems, and minor network dependencies.
Sentiment score
7.4
Zabbix is generally stable and reliable, requiring minimal resources, though occasional issues may arise from external factors.
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
Datadog seems to be more stable, and I really want to have a complete demo before making a call to decide on this.
Enterprise solution architect at a manufacturing company with 10,001+ employees
It is very stable.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Zabbix is very scalable and lightweight.
CTO at Oic
Zabbix is quite stable, and we haven't had any problems with Zabbix itself.
CTO at Four Nine Agency
I think the stability of Zabbix is around five to six on a scale of ten, where ten is the best and one is the worst.
Network Engineer at a computer software company with 11-50 employees
 

Room For Improvement

Datadog should enhance AI, improve customization, offer real-time insights, and optimize transparency for better user experience and performance.
Nagios XI's interface is outdated, lacks scalability, needs better cloud integration, APIs, automation, and improved documentation.
Zabbix needs user interface, reporting, and dashboard improvements, plus better configuration, automation, documentation, scalability, and advanced monitoring features.
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
The documentation is adequate, but team members coming into a project could benefit from more guided, interactive tutorials, ideally leveraging real-world data.
Senior Software Engineer at Los Angeles Times Communications, LLC
Many tools have poor user interfaces, making them hard to manage and navigate.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
The GUI could be improved. It's a bit too basic.
Site Duty Manager at Assw
The only issue I can note is that it's Linux-based, and Linux documentation is not the best.
CTO at Oic
The potential and customization is a little difficult because you have to learn scripts.
Network Engineer at a computer software company with 11-50 employees
 

Setup Cost

Datadog offers flexible, usage-based pricing favored by SMEs, but enterprise users face complexity and potential high costs for new features.
Nagios XI provides cost-efficient enterprise-level monitoring with reasonable pricing, appreciated for its features and open-source options.
Zabbix is praised for being a free, open-source solution with optional low-cost support, attracting enterprise users.
The setup cost for Datadog is more than $100.
Senior Performance and Architecture Analyst at a manufacturing company with 10,001+ employees
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
My experience with pricing, setup cost, and licensing is that it is really expensive.
Senior Site Reliability Engineer at a wholesaler/distributor with 5,001-10,000 employees
We are using the free, open-source version.
Site Duty Manager at Assw
The pricing for the Nagios XI product is good and better than other solutions.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Zabbix is providing everything free of cost.
Network Engineer at a computer software company with 11-50 employees
It is literally free.
CTO at Oic
 

Valuable Features

Datadog offers seamless integration, real-time monitoring, and cost-effective performance insights, making it highly favored for centralized application management.
Nagios XI provides customizable, flexible, and scalable IT infrastructure monitoring with real-time alerts and extensive plugin support.
Zabbix offers open-source flexibility, scalability, automated monitoring, diverse integrations, and adaptability for complex infrastructures with strong community support.
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
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
The alerting system is very effective.
Site Duty Manager at Assw
If disk usage surpasses a threshold, say 70%, I receive alerts and can take proactive action.
CTO at Oic
Zabbix has a lot of features, including monitoring, status updates, and collecting information telemetry from storages and servers as well.
CTO at Four Nine Agency
Zabbix is Linux-based open-source software, and the main use case is to reduce costs.
Network Engineer at Ogma Consulting
 

Mindshare comparison

As of April 2026, in the Network Monitoring Software category, the mindshare of Datadog is 2.6%, down from 3.6% compared to the previous year. The mindshare of Nagios XI is 2.4%, down from 3.3% compared to the previous year. The mindshare of Zabbix is 5.0%, down from 12.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Zabbix5.0%
Datadog2.6%
Nagios XI2.4%
Other90.0%
Network Monitoring Software
 

Featured Reviews

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.
Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
KamranBhatti - PeerSpot reviewer
Network Engineer at a computer software company with 11-50 employees
Helps reduce response time but has room to improve customization complexity
We are not working on simple standalone solutions like Kaspersky DDoS Protection or Hybrid Cloud Security. Once you understand Zabbix, then it is easy to customize those web pages and graphs for our customer use. It is fully automated to your requirements. Zabbix is working fine with no issues, and I am satisfied with it. We have combined Zabbix and SolarWinds. The integration works fine, and it is easy to integrate Zabbix with the IT environment. We were trying to purchase MDR (Managed Detection and Response), but we are not working on that. I don't have real experience with MDR. We are using Falcon software for that. We are working with Falcon Complete, not with Sandbox. We are not using Kaspersky for business or cloud protection. For that, we are using Zabbix CrowdStrike Falcon Complete solution. I have given this review an overall rating of 8.
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Financial Services Firm
13%
Computer Software Company
10%
Manufacturing Company
8%
Healthcare Company
6%
Financial Services Firm
9%
Computer Software Company
9%
Manufacturing Company
7%
Government
6%
Computer Software Company
11%
Financial Services Firm
9%
Comms Service Provider
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business81
Midsize Enterprise46
Large Enterprise99
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Small Business56
Midsize Enterprise23
Large Enterprise34
 

Questions from the Community

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 Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for mon...
What do you like most about Zabbix?
The template system in Zabbix is very beneficial as it saves time in configuration.
What is your experience regarding pricing and costs for Zabbix?
I think Zabbix is economical, whereas SolarWinds is expensive. SolarWinds has a lot of secure features, but Zabbix is...
What needs improvement with Zabbix?
The potential and customization is a little difficult because you have to learn scripts. I think Zabbix needs to impr...
 

Comparisons

 

Overview

 

Sample Customers

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
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
1. IBM 2. Dell 3. Cisco 4. HP 5. Oracle 6. Microsoft 7. Amazon 8. Google 9. Facebook 10. Twitter 11. LinkedIn 12. Netflix 13. Adobe 14. VMware 15. Salesforce 16. SAP 17. Intel 18. AT&T 19. Verizon 20. T-Mobile 21. Vodafone 22. Ericsson 23. Nokia 24. Siemens 25. General Electric 26. Honeywell 27. Philips 28. Sony 29. Samsung 30. LG 31. Panasonic 32. Toshiba
Find out what your peers are saying about Zabbix, Auvik, Datadog and others in Network Monitoring Software. Updated: March 2026.
885,444 professionals have used our research since 2012.