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Nagios XI vs ThousandEyes comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

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
6.6
Nagios XI enhances efficiency and time management but concerns about increased costs affect ROI perception across organizations.
Sentiment score
6.4
ThousandEyes offers significant ROI by enhancing network performance, reducing downtime, and speeding up troubleshooting, benefiting organizations significantly.
There has been a great ROI from using ThousandEyes, with significant time saved in troubleshooting as I can quickly pinpoint issues rather than spending time isolating them, alongside enhancing customer feedback and experience.
Senior cloud engineering lead and IT project owner at KDD
I have seen a return on investment by reducing troubleshooting time and having lesser user mapping error issues, in addition to engineering time saved through better observability and reduced organizational MTTR.
Project Manager at Procter & Gamble
 

Customer Service

Sentiment score
6.5
Nagios XI support is mixed; praised for responsiveness but criticized for high cost, complex licensing, and delayed responses.
Sentiment score
6.6
ThousandEyes customer support is highly rated, responsive, and helpful, especially for critical issues, with effective integration support.
We contacted the support team, and they resolved it within a couple of hours.
System Operation Associate at a financial services firm with 10,001+ employees
The customer support for ThousandEyes is very proactive and supportive.
Project Manager at Procter & Gamble
 

Scalability Issues

Sentiment score
7.1
Nagios XI is scalable for small to medium environments but faces challenges in large infrastructures and cloud adaptability.
Sentiment score
7.0
ThousandEyes is praised for scalability and adaptability, though some note licensing costs, making it ideal for diverse businesses.
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
ThousandEyes's scalability is excellent; it is very scalable and grows with my organization's needs.
Project Manager at Procter & Gamble
Scalability with ThousandEyes is straightforward as you don't really need to scale; it's designed to monitor multiple applications, accommodating 50 or 100 applications simultaneously.
Network and Systems Engineer at a healthcare company with 11-50 employees
 

Stability Issues

Sentiment score
7.3
Nagios XI is stable, but large deployments may experience performance issues, database problems, and minor network dependencies.
Sentiment score
8.1
ThousandEyes is highly reliable with minimal bugs, fast performance, and user satisfaction ratings typically between seven and ten.
It is very stable.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
From my experience, ThousandEyes has been stable up to 95%; I have not seen any stability issues.
Senior cloud engineering lead and IT project owner at KDD
ThousandEyes is not very stable; sometimes you have to reboot the servers to get actual results.
Network and Systems Engineer at a healthcare company with 11-50 employees
 

Room For Improvement

Nagios XI's interface is outdated, lacks scalability, needs better cloud integration, APIs, automation, and improved documentation.
Users desire an improved interface, better integration, enhanced monitoring capabilities, detailed documentation, and proactive incident detection for ThousandEyes.
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
Incidents should be alerted on and traced early, before they escalate to full outages.
Software Developer at The Code
Introduction of a free version for end-users and enhancements to the user interface for easier navigation.
Senior cloud engineering lead and IT project owner at KDD
Detailed analytics on application-level traffic would help in better understanding and managing our network resources effectively.
Vice President, Finance and Operations at Fruitist
 

Setup Cost

Nagios XI provides cost-efficient enterprise-level monitoring with reasonable pricing, appreciated for its features and open-source options.
ThousandEyes is mid-range to expensive, offering significant value to larger organizations, with regional pricing and flow-dependent licensing costs.
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
My experience with pricing, setup cost, and licensing has been that everything was cost-effective.
Project Manager at Procter & Gamble
My experience with pricing, setup cost, and licensing is that it comes in cheaper than alternatives.
Lead Technical Consultant at a financial services firm with 5,001-10,000 employees
 

Valuable Features

Nagios XI provides customizable, flexible, and scalable IT infrastructure monitoring with real-time alerts and extensive plugin support.
ThousandEyes offers comprehensive network insights, enhancing operational efficiency, troubleshooting, and user experience with end-to-end monitoring and deep visibility.
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
ThousandEyes offers the best features including global internet and cloud visibility from distributed vantage points, application and network performance monitoring, real-time outage detection and incident alerts, end-to-end path visualization for rapid troubleshooting, proactive issue demarcation, and historical data.
Project Manager at Procter & Gamble
With ThousandEyes being able to detect and monitor this, it's fantastic for me. It reduces the workload and also reduces errors in trying to figure out where there is internet downtime, low visibility, or other incidents.
Software Developer at The Code
I measure the 70% improvement in customer experience through customer tickets and feedback after resolving issues, where previously, users faced problems and limited time on the platform, and after using ThousandEyes, the user time reached up to five to six hours a day, even for teams possibly totaling 30 hours a day.
Senior cloud engineering lead and IT project owner at KDD
 

Categories and Ranking

Nagios XI
Ranking in Network Monitoring Software
23rd
Ranking in Cloud Monitoring Software
23rd
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (12th), IT Infrastructure Monitoring (20th)
ThousandEyes
Ranking in Network Monitoring Software
7th
Ranking in Cloud Monitoring Software
10th
Average Rating
8.4
Reviews Sentiment
7.0
Number of Reviews
24
Ranking in other categories
Digital Experience Monitoring (DEM) (3rd)
 

Mindshare comparison

As of March 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.4%, down from 3.3% compared to the previous year. The mindshare of ThousandEyes is 2.0%, down from 3.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
ThousandEyes2.0%
Nagios XI2.4%
Other95.6%
Network Monitoring Software
 

Featured Reviews

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.
Shreyans Parekh - PeerSpot reviewer
Vice President, Finance and Operations at Fruitist
Proactive monitoring has transformed digital experience and now optimizes application delivery
With ThousandEyes, there are some configuration and metric screens that are not entirely intuitive with ThousandEyes, so they can certainly improve in terms of the usability of certain metric screens. ThousandEyes can also offer deeper traffic insights relative to specific applications, so detailed analytics on application-level traffic would help in better understanding and managing our network resources effectively. I would say that ThousandEyes can also, in terms of providing more extensibility with other observability tools, offer more out-of-the-box integrations with other observability tools so that ThousandEyes can serve as that single source of truth, so that we don't necessarily need to go to other tools to be able to be that one-source dashboard. I think there's a lot that ThousandEyes can continue to improve on there. The issues that I've talked about, including extensibility with other platforms and the improvement of accessing specific metric screens in order to be able to provide for fuller access and more detailed access to network-level metrics would make the platform feel less complicated to navigate. It wouldn't require as many manual integration inputs.
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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
10%
Computer Software Company
9%
Manufacturing Company
8%
Government
7%
Financial Services Firm
11%
Computer Software Company
9%
Manufacturing Company
9%
Healthcare Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise3
Large Enterprise16
 

Questions from the Community

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 monitoring our server performance, including CPU, memory, data, and services runnin...
What is the best network monitoring software for large enterprises?
It actually depends on the exact purpose or requirements. Some tools are better for only network devices while others are better from a cloud monitoring or APM monitoring perspective. You can check...
What needs improvement with ThousandEyes?
With ThousandEyes, there are some configuration and metric screens that are not entirely intuitive with ThousandEyes, so they can certainly improve in terms of the usability of certain metric scree...
What is your primary use case for ThousandEyes?
My main use cases for ThousandEyes at my current company are leveraging ThousandEyes for digital experience, internet, and internet performance. I'm using ThousandEyes for full network path visuali...
 

Comparisons

 

Overview

 

Sample Customers

Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Wayfair, GitHub, Craigslist, Comcast, SurveyMonkey, Lyft, Box, HP, Zendesk, IO Data Centers, Good Technology, NNTCommunications, Proofpoint, Schneider, Crowdstrike, Avera, Pitney Bowes, InstartLogic, Shutterfly, Shutterstock, Condé Nast, Roche, Jive, Actelion, Brocade, Infor, Okta, JLL, DigitalOcean, Zuora, NetSuite, CloudFlare, One, DemonWare, Quantcast, Carbonite, CareerBuilder, Prosper, Oscar, Slack
Find out what your peers are saying about Nagios XI vs. ThousandEyes and other solutions. Updated: March 2026.
884,933 professionals have used our research since 2012.