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Checkmk vs Nagios Core comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 9, 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
11th
Ranking in IT Infrastructure Monitoring
13th
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
9
Ranking in other categories
Server Monitoring (5th), Cloud Monitoring Software (12th)
Nagios Core
Ranking in Network Monitoring Software
8th
Ranking in IT Infrastructure Monitoring
11th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Network Monitoring Software category, the mindshare of Checkmk is 3.6%, up from 2.2% compared to the previous year. The mindshare of Nagios Core is 3.0%, down from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

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.
Nishith-Vyas - PeerSpot reviewer
Valuable reporting and alert system with room for PDF export improvements
The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.

Quotes from Members

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

Pros

"Checkmk was built on a platform that was user-friendly, and I could build my charts easily."
"It's versatile, scalable, and easier to use compared to other solutions like Nagios and OMD."
"We can monitor multiple sites using the product."
"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."
"I really like the auto-discovery feature."
"The initial setup of Checkmk was easy...It is a very stable solution."
"Overall, from one to ten, I rate Checkmk a nine."
"It is fairly easy to set up, and we can monitor pretty much everything we want to."
"We use the product to monitor server applications."
"The most valuable feature of Nagios Core is it allows us to develop and add as many plugins as we want."
"What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services."
"I like that it's very simple to install, easy to manage and deploy, and easy to use for monitoring."
"The solution's most valuable feature is that it offers proper alerting capabilities."
"The solution is quite efficient."
"The application performance monitoring feature is valuable."
 

Cons

"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."
"It is easy for tech-savvy people, but newcomers might find it intimidating."
"In Checkmk, the documentation can probably be improved a bit more."
"The initial setup is a bit complex."
"Checkmk does not allow running scripts at varying intervals."
"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."
"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."
"I think that the integration and the exporting of the data collected are areas where Checkmk lacks but should try to improve the most."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"The dashboard and monitoring features could be improved."
"Would benefit from aggregations if a particular server goes down."
"Nagios Core can improve the graphical interface, it would make things a little easier."
"The interface could be improved."
"The mapping is a little hard."
"The alerting mechanism in Nagios Core could be improved."
"The initial setup process could be easier."
 

Pricing and Cost Advice

"The product is affordable."
"Checkmk is a fairly reasonably priced solution."
"The price of Checkmk is cheaper compared to other enterprise products."
"We are using the free version."
"Nagios Core is free to use."
"We are using the open-source, unpaid version."
"Nagios Core is a cheap solution."
"The solution is expensive."
"It's free."
"Lessening the price point would be an improvement."
"The enterprise version has technical support. The version we are using is free."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Government
9%
Financial Services Firm
9%
Manufacturing Company
8%
Computer Software Company
16%
Financial Services Firm
9%
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 Core?
What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.
What is your experience regarding pricing and costs for Nagios Core?
Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.
What needs improvement with Nagios Core?
The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.
 

Comparisons

 

Overview

 

Sample Customers

Information Not Available
Airbnb, Cisco, PayPal, FanDuel
Find out what your peers are saying about Checkmk vs. Nagios Core and other solutions. Updated: April 2025.
848,716 professionals have used our research since 2012.