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Elastic Search vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

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
6.0
Elastic Search enhances ROI by improving data handling, preemptive monitoring, reducing costs, and offering open-source advantages.
Sentiment score
7.2
Splunk Enterprise Security cuts costs and boosts efficiency with automation, threat response, and real-time insights, enhancing user satisfaction.
We have not purchased any licensed products, and our use of Elastic Search is purely open-source, contributing positively to our ROI.
For smaller organizations, other products may provide better value for money.
 

Customer Service

Sentiment score
6.7
Elastic Search's customer service is satisfactory, with strong community resources, though paid support has mixed reviews and improvement needs.
Sentiment score
6.7
Splunk Enterprise Security's customer service is praised for knowledgeable support but needs improvement in response times and consistency.
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.
The technical support for Splunk met my expectations.
 

Scalability Issues

Sentiment score
7.2
Elasticsearch is widely adopted for its scalability, though challenges arise with large datasets and requiring adequate infrastructure.
Sentiment score
7.7
Splunk Enterprise Security scales effectively, handling large data volumes and diverse environments, though costs may increase with scalability.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
 

Stability Issues

Sentiment score
7.7
Elastic Search is stable for most users, with occasional issues linked to specific configurations or infrastructure constraints.
Sentiment score
7.9
Splunk Enterprise Security is stable and reliable, but proper setup and careful capacity planning are crucial for optimal performance.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
It is very stable.
 

Room For Improvement

Elastic Search needs enhanced security, machine learning, scalability, user interfaces, support, integration, licensing, alerting, configuration, and data handling.
Splunk Enterprise Security needs better setup, integration, documentation, interfaces, access controls, data management, and pricing flexibility for improved user experience.
This can create problems for new developers because they have to quickly switch to another version.
An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.
Splunk Enterprise Security would benefit from a more robust rule engine to reduce false positives.
 

Setup Cost

Elastic Search is open-source with scalable pricing, but costs can rise with premium features and complex pricing models.
Splunk Enterprise Security's cost is seen as high, prompting calls for flexible pricing to suit different budgets and needs.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
Splunk is priced higher than other solutions.
 

Valuable Features

Elastic Search's speed, scalability, flexibility, integration options, and user-friendly interface drive its popularity in enterprises.
Splunk Enterprise Security offers robust data analysis, real-time alerts, and machine learning, enhancing threat detection and incident response.
Elastic Search makes handling large data volumes efficient and supports complex search operations.
The Splunk Enterprise Security's threat-hunting capabilities have been particularly useful in later releases.
They have approximately 50,000 predefined correlation rules.
 

Categories and Ranking

Elastic Search
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
66
Ranking in other categories
Indexing and Search (1st), Cloud Data Integration (11th), Search as a Service (1st), Vector Databases (1st)
Splunk Enterprise Security
Average Rating
8.4
Reviews Sentiment
7.6
Number of Reviews
303
Ranking in other categories
Log Management (1st), Security Information and Event Management (SIEM) (1st), IT Operations Analytics (1st)
 

Mindshare comparison

Elastic Search and Splunk Enterprise Security aren’t in the same category and serve different purposes. Elastic Search is designed for Indexing and Search and holds a mindshare of 28.4%, up 25.2% compared to last year.
Splunk Enterprise Security, on the other hand, focuses on Security Information and Event Management (SIEM), holds 10.8% mindshare, down 14.6% since last year.
Indexing and Search
Security Information and Event Management (SIEM)
 

Q&A Highlights

VV
Nov 13, 2019
 

Featured Reviews

Anand_Kumar - PeerSpot reviewer
Captures data from all other sources and becomes a MOM aka monitoring of monitors
Scalability and ROI are the areas they have to improve. Their license terms are based on the number of cores. If you increase the number of cores, it becomes very difficult to manage at a large scale. For example, if I have a $3 million project, I won't sell it because if we're dealing with a 10 TB or 50 TB system, there are a lot of systems and applications to monitor, and I have to make an MOM (Mean of Max) for everything. This is because of the cost impact. Also, when you have horizontal scaling, it's like a multi-story building with only one elevator. You have to run around, and it's not efficient. Even the smallest task becomes difficult. That's the problem with horizontal scaling. They need to improve this because if they increase the cores and adjust the licensing accordingly, it would make more sense.
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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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…
 

Answers from the Community

VV
Nov 13, 2019
Nov 13, 2019
First of all, we need to understand what those two softwares are; Splunk is a finished SIEM that is mainly used to analyze data, such as logs, net flows, etc. Splunk comes in different flavors, below I will include a link of all the products they have. https://www.splunk.com/en_us/software.html Some of them can be even downloaded or you can try them in the cloud, below I will give you a link ...
2 out of 4 answers
NF
Nov 11, 2019
We use ELK or other freeware stacks in isolated small scenarios. Think of a small or medium company with a „midsized“ webshop. You can easily do your Log management with an ELK-Stack, let's say size 5 up to 10 GB, no Problem. Please keep in mind to order Hardware. The best thing on ELK is that you can start immediately you don't have to wait for licensing and it's easy to build the first small things. Another Example: Your Marketing Dep. wants to do some singular evaluations and very specialized marketing stuff. It is temporary and they don't have the budget for licensing. The results are not for permanent use. Just use ELK. In my opinion, ELK is only cost-effective if you don't need to buy their professional service. You must leave the cases small. If you are looking for bigger scenarios or you want to build-up a SIEM, SOC or even doing elevated things like SOAR it is a very different kind of thing. There can be account issues that a developer usually won't mind at the first glance but a Controller will. You have to look at the Total Cost of Ownership, Scalability, Time to Market, Secureness of future development, maintenance e.g. If you want to build up a complex scenario with the secureness of scalability you should go with SPLUNK. If tomorrow there is a better tool with lower costs and less need for input of manpower I will refer to this.
AB
Nov 11, 2019
Splunk: hard to use, expensive with predatory pricing, few OOTB rules, SOAR is a premium, good luck training analyst on their platform in under six months. SPLUNK SEARCH. ELK Stack: easy to use, open-source, no predatory pricing, more robust use cases OOTB, loved and used by millions all over the globe, open ecosystem that can integrate with almost any major IT stack out of the box. LUCENE.
 

Top Industries

By visitors reading reviews
Computer Software Company
18%
Financial Services Firm
15%
Manufacturing Company
8%
Government
8%
Financial Services Firm
15%
Computer Software Company
14%
Government
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about ELK Elasticsearch?
Logsign provides us with the capability to execute multiple queries according to our requirements. The indexing is very high, making it effective for storing and retrieving logs. The real-time anal...
What is your experience regarding pricing and costs for ELK Elasticsearch?
I am not directly involved with pricing or setup costs. While I know a portion is open-source, a paid version might be necessary.
What needs improvement with ELK Elasticsearch?
An improvement would be to have an interface that allows easier navigation and tracing of logs. The current system requires manually inputting dates to verify alerts. A visual timeline that pinpoin...
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...
 

Also Known As

Elastic Enterprise Search, Swiftype, Elastic Cloud
No data available
 

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Overview

 

Sample Customers

T-Mobile, Adobe, Booking.com, BMW, Telegraph Media Group, Cisco, Karbon, Deezer, NORBr, Labelbox, Fingerprint, Relativity, NHS Hospital, Met Office, Proximus, Go1, Mentat, Bluestone Analytics, Humanz, Hutch, Auchan, Sitecore, Linklaters, Socren, Infotrack, Pfizer, Engadget, Airbus, Grab, Vimeo, Ticketmaster, Asana, Twilio, Blizzard, Comcast, RWE and many others.
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 Elastic, Luigi's Box, IBM and others in Indexing and Search. Updated: January 2025.
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