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Nagios Core vs Splunk Observability Cloud comparison

Nagios and Splunk are both solutions in the Network Monitoring Software category. Nagios is ranked #10 with an average rating of 8.5, while Splunk is ranked #6 with an average rating of 8.7. Nagios holds a 2.8% mindshare in NMS, compared to Splunk’s 0.8% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 94% of Splunk users who would recommend it.
Nagios Core
Read 51 Nagios Core reviews
  • 4,039 Views
  • 1,830 Comparison Views
80% willing to recommend
Splunk Observability Cloud
Read 56 Splunk Observability Cloud reviews
  • 1,231 Views
  • 369 Comparison Views
94% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Jun 19, 2025

Splunk Observability Cloud and Nagios Core compete in the field of observability and monitoring technology. Splunk Observability Cloud seems to have the upper hand with its advanced data analytics and seamless integration capabilities, whereas Nagios Core shines with strong community support and customizability.

Features: Splunk Observability Cloud provides features for application performance monitoring, cloud service integration, and custom dashboard creation for robust data visualization. Nagios Core offers a plugin-based architecture, customizable notifications, and reliable monitoring capabilities at no licensing cost.

Room for Improvement: Splunk Observability Cloud could improve its documentation, simplify setups, and offer better pricing models. Nagios Core could enhance its user interface, reduce command-line dependence, and incorporate advanced features from Nagios XI for better competitiveness.

Ease of Deployment and Customer Service: Splunk Observability Cloud is praised for cloud deployment ease and strong customer support, though there are requests for quicker issue resolution. Nagios Core, while versatile for on-premises setups, is less streamlined for deployment and needs improvement in customer service for large-scale and cloud solutions.

Pricing and ROI: Splunk Observability Cloud is considered premium, offering extensive features that justify its cost through high ROI. Nagios Core's open-source model incurs no licensing cost, providing cost-effective value for organizations able to customize and maintain the platform.

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To learn more, read our detailed Nagios Core vs. Splunk Observability Cloud Report (Updated: June 2025).
Buyer's Guide
Nagios Core vs. Splunk Observability Cloud
June 2025
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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
8.8
Nagios Core reduces downtime and costs with quick alerts, providing full ROI and eliminating expensive monitoring tools.
Sentiment score
7.8
Splunk Observability Cloud enhances visibility and efficiency, resulting in faster resolutions, reduced costs, and improved KPI performance for users.
No quotes available
For more quotes and insights, download the Nagios Core report
Using Splunk has saved my organization about 30% of our budget compared to using multiple different monitoring products.
Anyone working in front-end management should recognize the market price to see the true value of end-user monitoring.
For more quotes and insights, download the Splunk Observability Cloud report
 

Customer Service

Sentiment score
5.1
Nagios Core relies on community support, praised for stability and resources, but lacks official help compared to Nagios XI.
Sentiment score
7.4
Splunk Observability Cloud support is responsive but needs faster response times and deeper expertise for improved service quality.
No quotes available
For more quotes and insights, download the Nagios Core report
They often require multiple questions, with five or six emails to get a response.
Support from Splunk is not very helpful because Splunk doesn't have a dedicated APM; they only have one APM engineer in Korea.
They did respond to us, but they did not explicitly inform us about the feature's absence.
For more quotes and insights, download the Splunk Observability Cloud report
AL
ES
MM
 

Scalability Issues

Sentiment score
6.7
Nagios Core shows scalability for large networks but may need customizations and integrations for distributed environments.
Sentiment score
7.8
Splunk Observability Cloud offers scalable and flexible solutions, though concerns about cost and complexity persist among users.
The solution is scalable.
For more quotes and insights, download the Nagios Core report
We've used the solution across more than 250 people, including engineers.
I would rate its scalability a nine out of ten.
The issue is mainly about pricing because if they want to monitor more, it costs money.
For more quotes and insights, download the Splunk Observability Cloud report
HY
AL
Sathis-Kumar - PeerSpot reviewer
ES
 

Stability Issues

Sentiment score
8.2
Nagios Core is highly stable and reliable with minimal footprint, supporting extensive monitoring without network burden.
Sentiment score
8.3
Splunk Observability Cloud is mostly stable and reliable, with users experiencing minimal issues and frequent alert notification management.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
For more quotes and insights, download the Nagios Core report
I would rate its stability a nine out of ten.
We rarely have problems accessing the dashboard or the page.
Unlike NetScout or regular agents for APM, RUM has many problems during the POC phase because customer environments vary widely.
For more quotes and insights, download the Splunk Observability Cloud report
HY
MM
AL
ES
 

Room For Improvement

Nagios Core needs a more intuitive interface, better scalability, and features like enhanced reporting and integration with modern tools.
Users seek better integration, customization, scalability, and performance in Splunk Observability Cloud, alongside improved support and navigation features.
No quotes available
For more quotes and insights, download the Nagios Core report
There is room for improvement in the alerting system, which is complicated and has less documentation available.
Improvements in dashboard configuration, customization, and artificial intelligence functionalities are desired.
Customers sometimes need to create specific dashboards, particularly for applicative metrics such as Java and process terms.
For more quotes and insights, download the Splunk Observability Cloud report
MM
Sathis-Kumar - PeerSpot reviewer
AL
 

Setup Cost

Nagios Core is a free, cost-effective open-source tool, but requires Linux expertise and incurs hosting and maintenance costs.
Splunk Observability Cloud's pricing is competitive and flexible, offering annual licenses with a 14-day free trial for evaluation.
No quotes available
For more quotes and insights, download the Nagios Core report
Splunk is a bit expensive since it charges based on the indexing rate of data.
It appears to be expensive compared to competitors.
Splunk is a little expensive, however, it is in line with the current market pricing.
For more quotes and insights, download the Splunk Observability Cloud report
 

Valuable Features

Nagios Core provides flexible, low-resource monitoring with customization, automation, efficient alerts, and integration support for reliable IT performance visibility.
Splunk Observability Cloud offers real-time monitoring, intuitive dashboards, and machine learning for comprehensive analytics and performance optimization.
You can monitor anything.
For more quotes and insights, download the Nagios Core report
Splunk provides advanced notifications of roadblocks in the application, which helps us to improve and avoid impacts during high-volume days.
For troubleshooting, we can detect problems in seconds, which is particularly helpful for digital teams.
It offers unified visibility for logs, metrics, and traces.
For more quotes and insights, download the Splunk Observability Cloud report
HY
Sathis-Kumar - PeerSpot reviewer
AL
MV
 

Categories and Ranking

Nagios Core
Ranking in Network Monitoring Software
10th
Ranking in IT Infrastructure Monitoring
9th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
No ranking in other categories
Splunk Observability Cloud
Ranking in Network Monitoring Software
6th
Ranking in IT Infrastructure Monitoring
7th
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
56
Ranking in other categories
Application Performance Monitoring (APM) and Observability (8th), Cloud Monitoring Software (8th), Container Management (7th), Digital Experience Monitoring (DEM) (2nd)
 

Mindshare comparison

As of July 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 2.8%, down from 3.2% compared to the previous year. The mindshare of Splunk Observability Cloud is 0.8%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software
 

Featured Reviews

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.
Read full review
Lakshmi Padaga - PeerSpot reviewer
Collaborates performance metrics with log data to pinpoint the exact cause of issues and offers error detection
Splunk APM is a robust tool with many capabilities. There are always areas for potential improvement to enhance its functionality and user experience. For Splunk APM, there could be simplified navigation, like streamlining the user interface to make navigation more intuitive for our users, especially those new to APM, which can enhance usability. We can provide more customization options for dashboards and visualizations to help users tailor the platform to their specific needs. There could be more integration capabilities with a wider range of third-party tools and platforms would also be beneficial. By focusing on these areas, Splunk APM can enhance its value proposition, improve user satisfaction, and better meet the evolving needs of organizations monitoring their application performance.
Read full review
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Government
10%
Manufacturing Company
9%
Financial Services Firm
9%
Financial Services Firm
17%
Computer Software Company
15%
Government
7%
Retailer
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

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.
See all answers
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.
See all answers
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.
See all answers
What do you like most about SignalFx?
The most valuable feature is dashboard creation.
See all answers
What needs improvement with SignalFx?
Regarding dashboard customization, while Splunk has many dashboard building options, customers sometimes need to create specific dashboards, particularly for applicative metrics such as Java and pr...
See all answers
What is your primary use case for SignalFx?
The solution involves observability in general, such as Application Performance Monitoring, and generally addresses digital applications, web applications, sites, and mobile applications. I worked ...
See all answers
 

Comparisons

Icinga vs Nagios Core Logo
Icinga vs Nagios Core
Compared 25% of the time
Nagios XI vs Nagios Core Logo
Nagios XI vs Nagios Core
Compared 16% of the time
Zabbix vs Nagios Core Logo
Zabbix vs Nagios Core
Compared 12% of the time
Centreon vs Nagios Core Logo
Centreon vs Nagios Core
Compared 8% of the time
Checkmk vs Nagios Core Logo
Checkmk vs Nagios Core
Compared 5% of the time
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Observe vs Splunk Observability Cloud Logo
Observe vs Splunk Observability Cloud
Compared 10% of the time
Sentry vs Splunk Observability Cloud Logo
Sentry vs Splunk Observability Cloud
Compared 9% of the time
SigNoz vs Splunk Observability Cloud Logo
SigNoz vs Splunk Observability Cloud
Compared 5% of the time
Dynatrace vs Splunk Observability Cloud Logo
Dynatrace vs Splunk Observability Cloud
Compared 4% of the time
ThousandEyes vs Splunk Observability Cloud Logo
ThousandEyes vs Splunk Observability Cloud
Compared 4% of the time
More Splunk Observability Cloud Competitors
 

Product Reports

Buyer's Guide
Nagios Core
June 2025
Nagios Core reportDownload Nagios Core product report
Buyer's Guide
Splunk Observability Cloud
June 2025
Splunk Observability Cloud reportDownload Splunk Observability Cloud product report
 

Also Known As

No data available
Splunk Infrastructure Monitoring, Splunk Real User Monitoring (RUM), Splunk Synthetic Monitoring
 

Overview

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios

Splunk Observability Cloud offers sophisticated log searching, data integration, and customizable dashboards. With rapid deployment and ease of use, this cloud service enhances monitoring capabilities across IT infrastructures for comprehensive end-to-end visibility.

Focused on enhancing performance management and security, Splunk Observability Cloud supports environments through its data visualization and analysis tools. Users appreciate its robust application performance monitoring and troubleshooting insights. However, improvements in integrations, interface customization, scalability, and automation are needed. Users find value in its capabilities for infrastructure and network monitoring, as well as log analytics, albeit cost considerations and better documentation are desired. Enhancements in real-time monitoring and network protection are also noted as areas for development.

What are the key features?
  • Log Searching: Efficiently search and analyze logs from various sources.
  • Data Integration: Seamlessly integrate with multiple environments.
  • Dashboard Customization: Tailor dashboards to specific monitoring needs.
  • Monitoring Capabilities: Provides comprehensive insights into application performance.
  • Security Features: Analyze and address security threats across systems.
  • Visualization Tools: Enhance data analysis and system performance optimization.
Why consider this for ROI?
  • Comprehensive Visibility: Gain complete insights into IT infrastructure.
  • Performance Optimization: Improve overall system performance and efficiency.
  • Rapid Deployment: Quick setup to meet organization demands swiftly.
  • Enhanced Security: Strengthen security measures through detailed analytics.

In industries, Splunk Observability Cloud is implemented for security management by analyzing logs from detection systems, offering real-time alerts and troubleshooting for cloud-native applications. It is leveraged for machine data analysis, improving infrastructure visibility and supporting network and application performance management efforts.

Splunk
 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Sunrun, Yelp, Onshape, Tapjoy, Symphony Commerce, Chairish, Clever, Grovo, Bazaar Voice, Zenefits, Avalara
Buyer's Guide
Nagios Core vs. Splunk Observability Cloud
June 2025
Free Report: Nagios Core vs. Splunk Observability Cloud
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