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Nagios Core vs Splunk ITSI (IT Service Intelligence) comparison

The compared Nagios and Splunk solutions aren't in the same category. Nagios is ranked #10 in NMS , with an average rating of 8.7, and holds a 1.9% mindshare in the category. Splunk is ranked #3 in IMS , with an average rating of 8.4, and holds a 2.0% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 98% of Splunk users who would recommend it.
Nagios Core
Read 51 Nagios Core reviews
  • 5,072 Views
  • 4,210 Comparison Views
80% willing to recommend
Splunk ITSI (IT Service Int...
Read 52 Splunk ITSI (IT Service Intelligence) reviews
  • 3,236 Views
  • 356 Comparison Views
98% willing to recommend
 

Comparison Buyer's Guide

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Executive SummaryUpdated on Aug 5, 2024

Nagios Core and Splunk ITSI compete in the IT infrastructure and advanced analytics monitoring space. Splunk ITSI seems to have the upper hand due to its advanced features and comprehensive monitoring capabilities.

Features: Nagios Core offers configurability, broad monitoring capabilities across diverse environments, and simplicity. Splunk ITSI provides predictive analytics, machine learning insights, and a comprehensive service-view dashboard.

Room for Improvement: Nagios Core could modernize its notification system, integrate advanced analytics, and update core functionalities. Splunk ITSI could enhance integration with third-party tools, improve its learning curve, and streamline usability.

Ease of Deployment and Customer Service: Nagios Core has straightforward deployment for open-source familiar users and strong community support, though it requires manual configuration. Splunk ITSI has a complex deployment requiring professional services but offers robust customer support and documentation.

Pricing and ROI: Nagios Core is cost-effective with high ROI due to low setup costs. Splunk ITSI has a higher initial investment but delivers strong ROI via advanced features and analytics capabilities.

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To learn more, read our detailed Nagios Core vs. Splunk ITSI (IT Service Intelligence) Report (Updated: January 2024).
Buyer's Guide
Nagios Core vs. Splunk ITSI (IT Service Intelligence)
January 2024
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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
7.0
Splunk ITSI boosts efficiency and resilience by streamlining data integration, cutting costs, and improving performance issue resolution speed.
 

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
6.4
Splunk ITSI customer service is generally responsive and supportive, though support quality can vary with reported delays for high-priority cases.
No quotes available
For more quotes and insights, download the Nagios Core report
We typically have weekly calls with the technical staff, and whenever we encounter issues, they usually reply with solutions within one or two days.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
The technical support is excellent, and I would rate it at ten.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
 

Scalability Issues

Sentiment score
6.7
Nagios Core shows scalability for large networks but may need customizations and integrations for distributed environments.
Sentiment score
7.6
Splunk ITSI is highly scalable, supporting extensive data and users, with infrastructure and cloud platforms enhancing scalability and optimization.
The solution is scalable.
Husham Yaqoob
Senior System Administrator at Interactive Group
For more quotes and insights, download the Nagios Core report
When we create Glass Tables containing many searches, the Glass Tables sometimes fail due to memory constraints, and we receive error pages.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
Splunk is highly scalable, with the ability to expand efficiently.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
HY
DS
KS
 

Stability Issues

Sentiment score
8.2
Nagios Core is highly stable and reliable with minimal footprint, supporting extensive monitoring without network burden.
Sentiment score
7.7
Splunk ITSI is highly reliable, with minor issues from external factors, praised for its stability and consistent uptime.
I tried many other solutions at work, however, in terms of Nagios, I haven't seen any disruption or downtime.
Husham Yaqoob
Senior System Administrator at Interactive Group
For more quotes and insights, download the Nagios Core report
Splunk ITSI (IT Service Intelligence) fails if you do not have good hardware requirements.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
The setup, however, must be done correctly as incorrect deployment can lead to issues.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
HY
DS
KS
 

Room For Improvement

Nagios Core needs a more intuitive interface, better scalability, and features like enhanced reporting and integration with modern tools.
Splunk ITSI faces issues with high cost, complex setup, integration challenges, and requires better usability, dashboards, and analytics features.
No quotes available
For more quotes and insights, download the Nagios Core report
I would appreciate additional features in the next release of Splunk ITSI (IT Service Intelligence) such as cloud infrastructure monitoring including CICDs, Kubernetes, and similar technologies.
Ahmed Naguib
Director at Techpace
Splunk ITSI could benefit from including more features that other solutions support, such as vulnerability management modules.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
I believe the installation process should be more uniform, meaning it could be deployed across all components to avoid post-installation issues.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
Ahmed Naguib - PeerSpot reviewer
KS
DS
 

Setup Cost

Nagios Core is a free, cost-effective open-source tool, but requires Linux expertise and incurs hosting and maintenance costs.
Splunk ITSI's high cost tied to data volume limits appeal despite its robust service and comprehensive data handling.
No quotes available
For more quotes and insights, download the Nagios Core report
Splunk ITSI tends to be more expensive compared to some open-source solutions.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
I believe the pricing is based on daily volume ingestion.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
 

Valuable Features

Nagios Core provides flexible, low-resource monitoring with customization, automation, efficient alerts, and integration support for reliable IT performance visibility.
Splunk ITSI enhances IT management with real-time insights, integration, automation, observability, and powerful machine learning for effective service delivery.
If you want to grasp everything of your IT equipment on a single interface, you can use Nagios.
Husham Yaqoob
Senior System Administrator at Interactive Group
For more quotes and insights, download the Nagios Core report
The predictive analysis can give you proactive information about potential bottlenecks that can occur on applications, desk, storage, SQL servers, databases, or other systems.
Ahmed Naguib
Director at Techpace
One valuable feature is the scheduled maintenance window provided by Splunk ITSI (IT Service Intelligence) because Splunk does not offer this scheduling maintenance feature in the core product, but Splunk ITSI (IT Service Intelligence) helps us with these maintenance reports.
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
Splunk ITSI allows for integration with threat intelligence, enabling my organization to correlate more than two events for generating alerts.
Shubham Kumar
Senior consultant at a tech services company with 51-200 employees
For more quotes and insights, download the Splunk ITSI (IT Service Intelligence) report
HY
Ahmed Naguib - PeerSpot reviewer
DS
KS
 

Categories and Ranking

Nagios Core
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
Network Monitoring Software (10th), IT Infrastructure Monitoring (10th)
Splunk ITSI (IT Service Int...
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
52
Ranking in other categories
Application Performance Monitoring (APM) and Observability (12th), IT Alerting and Incident Management (3rd)
 

Mindshare comparison

While both are Systems Management solutions, they serve different purposes. Nagios Core is designed for Network Monitoring Software and holds a mindshare of 1.9%, down 3.0% compared to last year.
Splunk ITSI (IT Service Intelligence), on the other hand, focuses on IT Alerting and Incident Management, holds 2.0% mindshare, down 3.7% since last year.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core1.9%
Zabbix5.7%
SolarWinds NPM3.4%
Other89.0%
Network Monitoring Software
IT Alerting and Incident Management Market Share Distribution
ProductMarket Share (%)
Splunk ITSI (IT Service Intelligence)2.0%
PagerDuty Operations Cloud13.2%
Opsgenie9.0%
Other75.8%
IT Alerting and Incident Management
 

Featured Reviews

HY
Husham Yaqoob
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.
Read full review
DS
DhirendraSingh2
Senior Consultant at a consultancy with 10,001+ employees
Service health has been monitored and visual insights support proactive telecom operations
The installation process is the first aspect I dislike about Splunk ITSI (IT Service Intelligence). If you do not configure it correctly, you will encounter issues in the search head. Because we use a distributed environment where each component has its own specific roles, installation is critical and requires careful attention. Splunk ITSI (IT Service Intelligence) is built with many applications. It is a compressed file, and when you extract the Splunk ITSI (IT Service Intelligence) app, you receive approximately 19 apps. Some applications, add-ons, and packages must be installed on specific components. If you do not configure an application correctly, it will not work. Sometimes we encounter issues during installation because of this complexity. I believe the installation process should be more uniform, meaning it could be deployed across all components to avoid post-installation issues. Sometimes after installation, you receive errors, and users cannot access Splunk ITSI (IT Service Intelligence). We have experienced this type of issue due to installation errors. I believe there is currently room for improvement regarding scalability. When we create Glass Tables containing many searches, the Glass Tables sometimes fail due to memory constraints, and we receive error pages. Splunk ITSI (IT Service Intelligence) should have a lightweight version to address these concerns. I would rate current scalability as medium.
Read full review
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Top Industries

By visitors reading reviews
Computer Software Company
11%
Manufacturing Company
10%
Comms Service Provider
9%
Government
8%
Financial Services Firm
17%
Manufacturing Company
10%
Computer Software Company
7%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise22
By reviewers
Company SizeCount
Small Business11
Midsize Enterprise9
Large Enterprise33
 

Questions from the Community

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 is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
See all answers
What do you like most about Splunk ITSI (IT Service Intelligence)?
Our mean time to detect is down to five minutes.
See all answers
What is your experience regarding pricing and costs for Splunk ITSI (IT Service Intelligence)?
Pricing can vary significantly based on the selected modules and deployment choices. Splunk ITSI tends to be more expensive compared to some open-source solutions.
See all answers
What needs improvement with Splunk ITSI (IT Service Intelligence)?
Splunk ITSI (IT Service Intelligence) can be improved in terms of the service management function, which is the only drawback, and there are some limitations in terms of event correlation, specific...
See all answers
 

Comparisons

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Zabbix vs Nagios Core Logo
Zabbix vs Nagios Core
Compared 6% of the time
Nagios XI vs Nagios Core Logo
Nagios XI vs Nagios Core
Compared 6% of the time
Centreon vs Nagios Core Logo
Centreon vs Nagios Core
Compared 5% of the time
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Compared 10% of the time
Dynatrace vs Splunk ITSI (IT Service Intelligence) Logo
Dynatrace vs Splunk ITSI (IT Service Intelligence)
Compared 8% of the time
Elastic Observability vs Splunk ITSI (IT Service Intelligence) Logo
Elastic Observability vs Splunk ITSI (IT Service Intelligence)
Compared 6% of the time
Splunk AppDynamics vs Splunk ITSI (IT Service Intelligence) Logo
Splunk AppDynamics vs Splunk ITSI (IT Service Intelligence)
Compared 6% of the time
OpsRamp vs Splunk ITSI (IT Service Intelligence) Logo
OpsRamp vs Splunk ITSI (IT Service Intelligence)
Compared 5% of the time
More Splunk ITSI (IT Service Intelligence) Competitors
 

Product Reports

Buyer's Guide
Nagios Core
January 2026
Nagios Core reportDownload Nagios Core product report
Buyer's Guide
Splunk ITSI (IT Service Intelligence)
January 2026
Splunk ITSI (IT Service Intelligence) reportDownload Splunk ITSI (IT Service Intelligence) product report
 

Overview

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

Nagios

Splunk IT Service Intelligence (ITSI) is a powerful analytics-driven monitoring and analytics solution that provides real-time insights into the health and performance of IT services. 

It enables organizations to proactively identify and resolve issues, optimize service delivery, and improve overall IT operations. With its advanced machine learning capabilities, ITSI automatically detects anomalies, predicts future events, and prioritizes alerts based on business impact. 

The solution offers a centralized view of IT services, allowing users to visualize and analyze data from multiple sources in a single dashboard. ITSI also provides customizable KPIs, service-level agreements (SLAs), and key performance indicators (KPIs) to measure and track service performance. 

With its intuitive interface and powerful analytics capabilities, Splunk ITSI empowers IT teams to deliver reliable and efficient services, ensuring maximum uptime and customer satisfaction.

Splunk
 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
TransUnion, Cox Automotive, Carnival Cruises, Leidos, Econocom, National Ignition Factory, Entrust Datacard, Molina Healthcare, United States Census Bureau
Buyer's Guide
Nagios Core vs. Splunk ITSI (IT Service Intelligence)
January 2024
Free Report: Nagios Core vs. Splunk ITSI (IT Service Intelligence)
Find out what your peers are saying about Nagios Core vs. Splunk ITSI (IT Service Intelligence) and other solutions. Updated: January 2024.
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