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Checkmk vs Nagios XI comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 6, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Checkmk
Ranking in Network Monitoring Software
8th
Ranking in Server Monitoring
6th
Ranking in IT Infrastructure Monitoring
13th
Ranking in Cloud Monitoring Software
12th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
No ranking in other categories
Nagios XI
Ranking in Network Monitoring Software
14th
Ranking in Server Monitoring
10th
Ranking in IT Infrastructure Monitoring
19th
Ranking in Cloud Monitoring Software
21st
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2025, in the IT Infrastructure Monitoring category, the mindshare of Checkmk is 4.3%, up from 2.2% compared to the previous year. The mindshare of Nagios XI is 3.6%, down from 3.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
IT Infrastructure Monitoring
 

Featured Reviews

Paolo Sala - PeerSpot reviewer
A reasonably priced tool for system and application monitoring
The main room for improvement is in the solution's presentation and the integration area. In our company, we use the integration capabilities from ServiceNow. We also have another big monitoring solution in place in our company, which is Dynatrace. At the moment, there doesn't exist an out-of-the-box integration for Dynatrace. I think that the integration and the exporting of the data collected are areas where Checkmk lacks but should try to improve the most. The only implementation of Checkmk that allows high availability is the virtual appliance that has the option for the availability of a different box. Otherwise, you have to find a way to implement it manually with some custom solution, which could be an improvement.
Amir  Said - PeerSpot reviewer
Effective alerting enhances network monitoring experience with an easy setup
We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We can monitor multiple sites using the product."
"Overall, from one to ten, I rate Checkmk a nine."
"The most valuable feature of the solution is that it has a lot of different pieces, and they all work together...It is a very scalable solution. Scalability-wise, I rate the solution a ten out of ten."
"The alerting system in Checkmk really works properly."
"The most valuable features of Checkmk are its resource monitoring, infra monitoring, and log factor configuration."
"Checkmk was built on a platform that was user-friendly, and I could build my charts easily."
"I really like the auto-discovery feature."
"Checkmk helps me compare data and foresee issues."
"I can monitor a phone on a desk to very big servers of any company."
"Nagios is stable and it's easy to use the monitoring software, which is why we chose this product."
"Nagios allows us to configure any device so that we can send pager alerts when people don't have access to emails. It also allows us to schedule downtime and maintenance."
"Nagios XI is stable."
"This is a very good solution and it is simple to use, for any company."
"The most useful aspect of this solution is the ability to customize it for the client agent."
"Since this is an open source technology, if we are capable of writing the plugins in any scripting language, this product allows us to monitor anything we want."
"The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use."
 

Cons

"The main challenge for us is that we're moving from Nagios to Checkmk, and we're still getting used to the new way of working."
"It is easy for tech-savvy people, but newcomers might find it intimidating."
"The initial setup is a bit complex."
"If an alert is generated for a specific pattern in the log, and if Checkmk catches that log, it will stay there even after the alert is resolved."
"I think that the integration and the exporting of the data collected are areas where Checkmk lacks but should try to improve the most."
"Sometimes we receive alerts, and it can become annoying when you acknowledge an alert. It is very clunky when you acknowledge the alert. The process is not very intuitive, and there are instances where it feels a bit cumbersome to acknowledge an alert."
"In Checkmk, the documentation can probably be improved a bit more."
"Checkmk does not allow running scripts at varying intervals."
"The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate."
"Technical support is an area that needs improvement. It is not available 24/7."
"The product could be optimized to improve the administrative user experience via the Nagios Core Configuration (NCC) GUI module."
"The reporting structure could be more streamlined."
"I would like to see support for notification via SMS."
"The GUI could be improved. It's a bit too basic, and maybe having a GraphQL interface would resolve this."
"From an alerting point of view, some graphics and metrics don't work properly with Nagios XI as they do with Checkmk."
"The product uses the backend as Perl and could be modified to a more lightweight solution like what's being offered by other vendors."
 

Pricing and Cost Advice

"The product is affordable."
"The price of Checkmk is cheaper compared to other enterprise products."
"Checkmk is a fairly reasonably priced solution."
"As it is not an agentless tool, I think it is expensive."
"The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
"The pricing is high with separate licensing for the product and support."
"You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
"Nagios Core does not have any payment, but Nagios XI requires payment for the license."
"Licensing costs are reasonable."
"The licensing fees for this solution are approximately $3,000 USD per year."
"It is good to contact experts for advice about what is the best solution for your specific infrastructure and enterprise."
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Comparison Review

it_user174738 - PeerSpot reviewer
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
Computer Software Company
13%
Government
9%
Manufacturing Company
9%
Financial Services Firm
9%
Computer Software Company
13%
Financial Services Firm
11%
Government
9%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Checkmk?
The most valuable feature of the solution is that it has a lot of different pieces, and they all work together...It is a very scalable solution. Scalability-wise, I rate the solution a ten out of ten.
What needs improvement with Checkmk?
I will get more information about Checkmk when the proof of concept is done. It's going to be before the summer. There will be a report about the tool and a recommendation to use it. So far, it loo...
What is your primary use case for Checkmk?
Checkmk ( /products/checkmk-reviews ) is a monitoring tool, so that's what I will use it for. Right now, it's not in production, but it's in a proof of concept phase. It looks good, so probably, du...
What do you like most about Nagios XI?
It is an open-source platform with valuable features for performance and stability.
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.
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Find out what your peers are saying about Checkmk vs. Nagios XI and other solutions. Updated: July 2025.
864,155 professionals have used our research since 2012.