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Fortinet FortiAnalyzer vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 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
7.0
Fortinet FortiAnalyzer offers competitive pricing, high efficiency, and cost savings, making it a valuable investment for organizations.
Sentiment score
6.3
Splunk Enterprise Security improves efficiency and threat detection, reducing time and costs despite its expense for larger organizations.
The impact of the tool is low when the functionalities are inaccessible due to resource consumption.
Pre Sales/ Cybersecurity Engineer at Contacta
Fortinet is highly efficient for moderate deployments and provides a secure platform for medium-sized networks and data centers.
Product Manager at a comms service provider with 10,001+ employees
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.
Technical Engineer - Technical Security at a tech services company with 1,001-5,000 employees
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
DevOps&Cloud Engineer Mentee at CertDirectory.io
We couldn't calculate what would have been the cost if they had actually gotten compromised; however, they were in the process, so every investment was returned immediately.
Business Development Manager at Axians Germany
On average, my SecOps team takes probably at least a quarter of the time, if not more, to remediate security incidents with Splunk Enterprise Security compared to our previous solution.
IT Orchestration Architect at Penn State University
 

Customer Service

Sentiment score
7.2
FortiAnalyzer's customer service is praised for responsiveness and effectiveness, though some report delays and inefficiencies with support levels.
Sentiment score
6.3
Splunk Enterprise Security is highly rated for support expertise, though some users report delays and inconsistent experiences.
Customer service and support for Fortinet FortiAnalyzer are quite helpful and responsive.
Information Security Engineer at a tech services company with 11-50 employees
Technical support is good, and I rate it ten out of ten.
Head of Technology at Techfruits
The support service is very slow and incompetent.
Network Security Engineer at Ensure Support Services Limited
We have paid for Splunk support, and we’re not on the free tier hoping for assistance; we are a significant customer and invest a lot in this service.
Senior System Administrator at a tech services company with 5,001-10,000 employees
I have had nothing but good experiences with Splunk support, receiving timely and helpful replies.
Cyber Security Associate at SAP
We've had great customer success managers who have helped us navigate scaling from 600 gigs to 30 terabytes.
Principal Engineer at Aviatrix
 

Scalability Issues

Sentiment score
6.2
Fortinet FortiAnalyzer suits diverse needs with proper sizing, excelling in virtual environments but limited by hardware and cost.
Sentiment score
7.4
Splunk Enterprise Security offers excellent scalability, managing large data volumes and supporting effortless growth across industries.
Fortinet FortiAnalyzer is scalable, especially for the VM versions, as additional space can be provisioned from the servers as needed.
Information Security Engineer at a tech services company with 11-50 employees
FortiAnalyzer is a scalable product.
Technology Consultant at 1ware
It typically handles three to five years of expansion effectively.
Head of Technology at Techfruits
We currently rely on disaster recovery and backup recovery, which takes time to recover, during which you're basically blind, so I'm pushing my leadership team to switch over to a clustering environment for constant availability.
IT Security Engineer at a financial services firm with 201-500 employees
It is one of the things that separates it from other tooling, and if not, it is the most scalable solution out there.
Systems Development Engineer at a tech vendor with 10,001+ employees
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
CTO at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.5
Fortinet FortiAnalyzer is stable and reliable, handling large logs well, though rare performance issues may occur with OS mismatches.
Sentiment score
7.5
Splunk Enterprise Security is praised for stability and reliability, despite challenges with resource demands and custom configurations.
We faced some CPU consumption issues, which caused the machine to slow down and required a restart of FortiAnalyzer.
Pre Sales/ Cybersecurity Engineer at Contacta
It remains stable during implementation for one or two years.
Head of Technology at Techfruits
It provides a reliable solution for managing network-wide data.
Technical Engineer - Technical Security at a tech services company with 1,001-5,000 employees
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk has been very reliable and very consistent.
Principal Engineer at Aviatrix
We need more SMEs, and there is no mechanism to tell us about indexer or search head issues.
Senior Manager at a financial services firm with 10,001+ employees
 

Room For Improvement

Users recommend enhancing FortiAnalyzer's interface, integration, support, and AI while addressing high costs and setup complexity.
Splunk Enterprise Security needs UI improvements, better integration, richer documentation, competitive pricing, and enhanced AI and threat detection.
When licensing, each device is licensed separately, such as the firewall, which can become expensive.
Network &Security Engineer at Natioanal Drug Authority Uganda
This would help in analyzing various security incidents and events more effectively by delivering a handful of relevant logs instead of thousands.
Product Manager at a comms service provider with 10,001+ employees
Enhanced deep inspection features would make troubleshooting easier.
Head of Technology at Techfruits
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Resident Consultant (Security Analyst) at helpag
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.
Security & Risk Analyst at a computer software company with 1,001-5,000 employees
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.
Security Consultant at Matiq
 

Setup Cost

Enterprise buyers find Fortinet FortiAnalyzer pricing varies, with competitive rates but high costs for extensive licensing and setups.
Splunk Enterprise Security offers robust insights but can be costly for high data volumes, challenging affordability for smaller businesses.
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.
Technical Engineer - Technical Security at a tech services company with 1,001-5,000 employees
In terms of pricing, FortiAnalyzer is not expensive.
Technology Consultant at 1ware
In the Indian market, Fortinet's pricing is very competitive, allowing us to win most of our deals.
Product Manager at a comms service provider with 10,001+ employees
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
CTO at a tech vendor with 10,001+ employees
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
System Engineer - Security Presales at Raya Integration
I find it to be affordable, which is why every industry uses it.
Vice President Research And Development at OSINT Ambition
 

Valuable Features

Fortinet FortiAnalyzer offers centralized analysis with real-time logs, customizable dashboards, and automation for effective network management.
Splunk Enterprise Security offers real-time threat detection, customization, and integration, enhancing security operations and data management capabilities.
The advanced analytics capabilities aid in threat detection by providing visibility into indicators of compromise.
Information Security Engineer at a tech services company with 11-50 employees
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.
Head of Technology at Techfruits
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.
Senior Manager at ITX360 (Pvt) Ltd
This capability is useful for performance monitoring and issue identification.
Staff Performance Engineer at ServiceNow
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
Specialist-Infrastructure Opertions at Allianz Technology
 

Categories and Ranking

Fortinet FortiAnalyzer
Ranking in Log Management
12th
Average Rating
8.0
Reviews Sentiment
7.3
Number of Reviews
107
Ranking in other categories
No ranking in other categories
Splunk Enterprise Security
Ranking in Log Management
2nd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
374
Ranking in other categories
Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

As of January 2026, in the Log Management category, the mindshare of Fortinet FortiAnalyzer is 1.7%, down from 2.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.1%, down from 8.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.1%
Fortinet FortiAnalyzer1.7%
Other91.2%
Log Management
 

Featured Reviews

Manikandan Kannan - PeerSpot reviewer
Head of Technology at Techfruits
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.
reviewer1469784 - PeerSpot reviewer
Senior Manager at a financial services firm with 10,001+ employees
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.
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Use our free recommendation engine to learn which Log Management solutions are best for your needs.
879,477 professionals have used our research since 2012.
 

Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
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
13%
Manufacturing Company
9%
Financial Services Firm
7%
Comms Service Provider
6%
Financial Services Firm
13%
Computer Software Company
12%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business58
Midsize Enterprise20
Large Enterprise31
By reviewers
Company SizeCount
Small Business109
Midsize Enterprise50
Large Enterprise263
 

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?
The pricing of Fortinet FortiAnalyzer is okay. For smaller companies, the pricing is acceptable.
What needs improvement with Fortinet FortiAnalyzer?
I don't know what the main room for improvement is for Fortinet FortiAnalyzer, but perhaps I don't have much experience, so I cannot answer this question comprehensively.
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: December 2025.
879,477 professionals have used our research since 2012.