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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
7.4
ThousandEyes offers value through time and cost savings, improving network performance and user experiences, yielding high investment returns.
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
 

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
7.1
ThousandEyes is praised for exceptional customer service, with efficient issue resolution and high overall user satisfaction.
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
 

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
7.4
ThousandEyes excels in scalability, supporting diverse functions and users but faces licensing cost challenges during expansion.
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
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
8.0
ThousandEyes is highly stable and reliable, with few bugs and no crashes, receiving positive feedback from users.
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.
ThousandEyes should enhance customization, integration, user-friendliness, and analytics while reducing costs and improving documentation and incident management.
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
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
An area where ThousandEyes can be improved is in providing more in-depth packet analysis; we've found instances where ThousandEyes indicates everything is okay, but it's actually not.
Network and Systems Engineer at a healthcare company with 11-50 employees
Having a dedicated incident alert system for URL alerts would help manage noise and streamline operations, especially during patch upgrades.
System Operation Associate at a financial services firm with 10,001+ employees
 

Setup Cost

Nagios XI provides cost-efficient enterprise-level monitoring with reasonable pricing, appreciated for its features and open-source options.
ThousandEyes offers varied pricing based on usage, seen as mid-range, suiting large enterprises but challenging smaller businesses.
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
 

Valuable Features

Nagios XI provides customizable, flexible, and scalable IT infrastructure monitoring with real-time alerts and extensive plugin support.
ThousandEyes provides detailed monitoring and diagnostics to enhance user experience and improve troubleshooting with cloud providers and ISPs.
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
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
The best features ThousandEyes offers include monitoring page load times, assessing how long it takes for an application to load, checking for packet loss and jitter, and monitoring the routing path from the user to the server hosted in the cloud or on-premises.
Network and Systems Engineer at a healthcare company with 11-50 employees
ThousandEyes provides the exact error from the client, making troubleshooting more efficient.
System Operation Associate at a financial services firm with 10,001+ employees
 

Categories and Ranking

Nagios XI
Ranking in Network Monitoring Software
26th
Ranking in Cloud Monitoring Software
26th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (14th), IT Infrastructure Monitoring (28th)
ThousandEyes
Ranking in Network Monitoring Software
7th
Ranking in Cloud Monitoring Software
13th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
19
Ranking in other categories
Digital Experience Monitoring (DEM) (5th)
 

Mindshare comparison

As of January 2026, in the Network Monitoring Software category, the mindshare of Nagios XI is 2.3%, down from 3.4% compared to the previous year. The mindshare of ThousandEyes is 2.4%, down from 3.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
ThousandEyes2.4%
Nagios XI2.3%
Other95.3%
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.
Abdalraheem Asha - PeerSpot reviewer
Senior cloud engineering lead and IT project owner at KDD
Has improved collaboration with providers and pinpointed issues across regional networks
ThousandEyes has been the most user-friendly tool I have seen in the past couple of years, making life easier in troubleshooting and helping us find what's happening while offering vivid options on how to use the agents or the server-side tools with multiple options to trace out the issues. The best features ThousandEyes offers include the ability to place two different points or nodes, such as a server or a node in the cloud in my account, then installing agents and tracing the connectivity which helps me build a perfect user experience to check what's happening while users access my resources. I love the dashboards in ThousandEyes and the way I see the results after placing or doing the tests; this is perfect, and I would say this is the best thing. ThousandEyes has positively impacted my organization by raising the customer experience and positive feedback by over 70% due to the complex situation with local service providers, allowing me to resolve user feedback and issues which enhanced the user experience significantly. 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.
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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
11%
Computer Software Company
11%
Manufacturing Company
8%
Government
7%
Financial Services Firm
12%
Computer Software Company
12%
Manufacturing Company
8%
Government
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 Business5
Midsize Enterprise3
Large Enterprise12
 

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?
ThousandEyes could focus more on end-users than enterprises, as the solution is powerful, and collaboration with multiple cloud providers should be developed for better test traceability, with the ...
What is your primary use case for ThousandEyes?
My main use case for ThousandEyes is troubleshooting, with a specific example being testing connectivity through IXP to ensure the fastest route in collaboration with service providers over the reg...
 

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: January 2026.
881,082 professionals have used our research since 2012.