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Fortinet FortiAnalyzer vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

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
7.7
Fortinet FortiAnalyzer offers strong ROI through cost efficiencies, competitive pricing, and reduced operational expenses despite resource consumption challenges.
Sentiment score
7.2
Splunk Enterprise Security boosts efficiency, improves visibility, and increases profitability, offering flexibility, automation, and significant ROI in operations.
The impact of the tool is low when the functionalities are inaccessible due to resource consumption.
Fortinet is highly efficient for moderate deployments and provides a secure platform for medium-sized networks and data centers.
I have seen a return on investment with Fortinet FortiAnalyzer due to its competitive pricing and straightforward licensing model based on the amount of log data processed per day.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Splunk's cost is justified for large environments with extensive assets.
 

Customer Service

Sentiment score
7.4
Fortinet FortiAnalyzer's customer service is praised as responsive and effective, but some users report slower response times.
Sentiment score
6.7
Splunk Enterprise Security support is generally positive, but faster resolutions often require premium options due to occasional delays.
Customer service and support for Fortinet FortiAnalyzer are quite helpful and responsive.
Technical support is good, and I rate it ten out of ten.
The support service is very slow and incompetent.
If you want to write your own correlation rules, it is very difficult to do, and you need Splunk's support to write new correlation rules for the SIEM tool.
I have sought assistance from Splunk Enterprise Security support in the past, particularly during deployment, and they provide friendly and effective help.
The technical support for Splunk met my expectations.
 

Scalability Issues

Sentiment score
7.4
Fortinet FortiAnalyzer is scalable in VM/cloud versions but faces challenges with on-premises hardware due to size and cost.
Sentiment score
7.7
Splunk Enterprise Security excels in scalability with smooth integration but may incur cost issues due to volume-based pricing.
Fortinet FortiAnalyzer is scalable, especially for the VM versions, as additional space can be provisioned from the servers as needed.
FortiAnalyzer is a scalable product.
It typically handles three to five years of expansion effectively.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
It is easy to scale.
I find it easy to scale Splunk Enterprise Security for our environment.
 

Stability Issues

Sentiment score
8.5
Fortinet FortiAnalyzer is stable and reliable, but performance may vary with updates, OS versions, or virtual machine use.
Sentiment score
7.9
Splunk Enterprise Security is reliable, robust, and adaptable, effectively managing large data volumes with minimal downtime and ease.
We faced some CPU consumption issues, which caused the machine to slow down and required a restart of FortiAnalyzer.
It remains stable during implementation for one or two years.
It provides a reliable solution for managing network-wide data.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
It is very stable.
 

Room For Improvement

Fortinet FortiAnalyzer needs UI improvements, better integration, customizable reports, enhanced support, advanced analytics, and improved documentation.
Splunk Enterprise Security needs user-friendliness, pricing adjustments, and improved integration to enhance functionality and user experience.
When licensing, each device is licensed separately, such as the firewall, which can become expensive.
This would help in analyzing various security incidents and events more effectively by delivering a handful of relevant logs instead of thousands.
Enhanced deep inspection features would make troubleshooting easier.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel.
Splunk Enterprise Security would benefit from a more robust rule engine to reduce false positives.
 

Setup Cost

Fortinet FortiAnalyzer is cost-effective for mid-sized enterprises but too expensive for smaller businesses, offering robust integration features.
Splunk Enterprise Security's pricing is complex and costly but justified by its advanced analytics and comprehensive features.
Its licensing model is based on the amount of log data processed per day, making it more cost-effective compared to QRadar, which is EPS and device-based.
In terms of pricing, FortiAnalyzer is not expensive.
In the Indian market, Fortinet's pricing is very competitive, allowing us to win most of our deals.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
Splunk is priced higher than other solutions.
 

Valuable Features

Fortinet FortiAnalyzer is valued for its robust security, integration capabilities, ease of use, scalability, and comprehensive reporting features.
Splunk Enterprise Security excels with robust log management, seamless integration, real-time insights, and advanced threat detection for comprehensive monitoring.
The advanced analytics capabilities aid in threat detection by providing visibility into indicators of compromise.
The most valuable feature of Fortinet FortiAnalyzer is its ability to simplify and display logs clearly, providing details like which IPs are accessing the system, the destination, and the policies applied.
The log management is useful as we have connected around two hundred eighty-five walls and around fifteen to twenty plus firewalls with Fortinet FortiAnalyzer, making it highly beneficial compared to logging into each individual firewall.
This capability is useful for performance monitoring and issue identification.
They have approximately 50,000 predefined correlation rules.
The Splunk Enterprise Security's threat-hunting capabilities have been particularly useful in later releases.
 

Categories and Ranking

Fortinet FortiAnalyzer
Ranking in Log Management
8th
Average Rating
8.2
Reviews Sentiment
7.6
Number of Reviews
101
Ranking in other categories
No ranking in other categories
Splunk Enterprise Security
Ranking in Log Management
2nd
Average Rating
8.4
Reviews Sentiment
7.6
Number of Reviews
306
Ranking in other categories
Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

As of May 2025, in the Log Management category, the mindshare of Fortinet FortiAnalyzer is 2.0%, down from 2.9% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 10.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management
 

Featured Reviews

Manikandan Kannan - PeerSpot reviewer
Simplifying log management by displaying detailed access information
The most valuable feature of Fortinet FortiAnalyzer is its ability to simplify and display logs clearly, providing details like which IPs are accessing the system, the destination, and the policies applied. This visualization and detail make managing logs more straightforward. In conjunction with our VMware setup, Fortinet FortiAnalyzer enhances organizational efficiency, meeting the standard log retention period for up to a year.
ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.
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Use our free recommendation engine to learn which Log Management solutions are best for your needs.
849,686 professionals have used our research since 2012.
 

Comparison Review

VS
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Computer Software Company
17%
Government
8%
Manufacturing Company
8%
Financial Services Firm
7%
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Fortinet FortiAnalyzer?
The reporting features, which offer customization, real-time insights, and compliance support, are particularly noteworthy aspects.
What is your experience regarding pricing and costs for Fortinet FortiAnalyzer?
In the Indian market, Fortinet's pricing is very competitive, allowing us to win most of our deals. It is supportive in terms of pricing, offering a good balance for mid-sized enterprises.
What needs improvement with Fortinet FortiAnalyzer?
Currently, Fortinet FortiAnalyzer provides a very basic level of correlation facilities. I would like to see improvements in the integration of better correlation capabilities. This would help in a...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we...
 

Overview

 

Sample Customers

General Directorate of Information Technology
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Fortinet FortiAnalyzer vs. Splunk Enterprise Security and other solutions. Updated: April 2025.
849,686 professionals have used our research since 2012.