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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
7.5
Fortinet FortiAnalyzer offers high ROI with competitive pricing, efficiency improvements, and cost savings, especially in markets like India.
Sentiment score
7.2
Splunk Enterprise Security improves efficiency, automates tasks, enhances visibility, and offers customization for better threat detection and resource allocation.
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.
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Customers see the value in investing in this solution, particularly when it helps resolve issues quickly, turning a potential 20-hour response into one hour.
 

Customer Service

Sentiment score
7.7
Fortinet FortiAnalyzer's customer service is generally well-rated, though opinions on technical support vary regarding responsiveness and expertise.
Sentiment score
6.7
Splunk Enterprise Security support is knowledgeable and generally effective, but response times and expertise levels could improve.
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.
They try to close issues as soon as possible, often just offering documentation links.
They are responsive and effectively resolve issues.
 

Scalability Issues

Sentiment score
6.8
Fortinet FortiAnalyzer is praised for scalability, flexibility, and adaptability, despite cost increases with expansions, across varied environments.
Sentiment score
7.7
Splunk Enterprise Security offers versatile scalability, handling large data volumes effectively, with cost considerations for on-premises deployments.
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.
It's big in a Central European context, and small from a Splunk North American context.
 

Stability Issues

Sentiment score
7.8
Fortinet FortiAnalyzer is highly stable and reliable, with minimal issues, maintained through updates and proper management.
Sentiment score
7.9
Splunk Enterprise Security is stable and reliable, though performance challenges occur with high data volumes and complex queries.
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.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
I would rate it a ten out of ten for stability.
 

Room For Improvement

Fortinet FortiAnalyzer needs UI improvements, better integration, and advanced analytics with AI for effective log analysis and user experience.
Splunk Enterprise Security needs interface and integration improvements, streamlined setup, better training, cost adjustments, and enhanced AI features.
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.
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
 

Setup Cost

Fortinet FortiAnalyzer offers competitive pricing, but costs vary by needs, with larger enterprises benefiting from comprehensive security integration.
Splunk Enterprise Security, seen as costly, offers extensive features, requiring careful data management to optimize expenses.
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 excels in reporting, log management, integration, and security analysis, enhancing IT teams' network visibility and threat detection.
Splunk Enterprise Security offers powerful data management, flexible search, seamless integration, and advanced threat detection tools for efficiency.
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.
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
 

Categories and Ranking

Fortinet FortiAnalyzer
Ranking in Log Management
7th
Average Rating
8.0
Reviews Sentiment
7.5
Number of Reviews
105
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
315
Ranking in other categories
Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

As of July 2025, in the Log Management category, the mindshare of Fortinet FortiAnalyzer is 1.9%, down from 2.7% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 10.1% 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.
report
Use our free recommendation engine to learn which Log Management solutions are best for your needs.
859,687 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
15%
Government
8%
Manufacturing Company
7%
Comms Service Provider
6%
Computer Software Company
15%
Financial Services Firm
14%
Manufacturing Company
8%
Government
7%
 

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?
There are no extra expenses included aside from the licensing fee for Fortinet FortiAnalyzer, which I am paying annually.
What needs improvement with Fortinet FortiAnalyzer?
The UI needs to be improved in future updates.
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: June 2025.
859,687 professionals have used our research since 2012.