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Kentik vs Nagios XI comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

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
5.2
Kentik enhanced network efficiency, reduced costs, improved security, enabled better traffic management, and justified investment through perceived value.
Sentiment score
6.6
Nagios XI enhances efficiency and time management but concerns about increased costs affect ROI perception across organizations.
If we had, for example, a contracted capacity from Vivo of 50 GB and we were using 40, with Kentik we reduced this usage from 40 to 20.
Network Engineer at a media company with 51-200 employees
In production environments, especially for service providers on IP networks and data centers, Kentik helps in reducing the time to identify and resolve issues.
BDM at a comms service provider with 11-50 employees
I believe the return on investment has been mainly time savings in performing troubleshooting.
Network Analyst at a comms service provider with 201-500 employees
 

Customer Service

Sentiment score
6.6
Kentik's customer service is praised for being proactive, responsive, and knowledgeable, effectively handling unique issues with timely solutions.
Sentiment score
6.5
Nagios XI support is mixed; praised for responsiveness but criticized for high cost, complex licensing, and delayed responses.
I have mostly used forums for any support needed because the setup is straightforward and the documentation is quite good.
BDM at a comms service provider with 11-50 employees
They have monthly calls and discuss the product roadmap with us to determine what is needed.
Network Engineer III at Fortanix
 

Scalability Issues

Sentiment score
6.6
Kentik is praised for scalability, handling vast data volumes across global centers, with user-friendly dashboards and seamless expansion.
Sentiment score
7.1
Nagios XI is scalable for small to medium environments but faces challenges in large infrastructures and cloud adaptability.
Kentik's integration with Kubernetes makes scaling easier.
BDM at a comms service provider with 11-50 employees
Kentik's scalability is effective; the platform can handle these large volumes.
Network Analyst at a comms service provider with 201-500 employees
Kentik's scalability depends on how it is contracted.
Network Engineer at a media company with 51-200 employees
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
 

Stability Issues

Sentiment score
8.1
Kentik is stable and reliable, with quick resolution of minor issues and minimal impact from maintenance or hardware failures.
Sentiment score
7.3
Nagios XI is stable, but large deployments may experience performance issues, database problems, and minor network dependencies.
In production, however, dimensioning of the underlying platforms is something to be mindful of.
BDM at a comms service provider with 11-50 employees
Based on stability, I would give Kentik a nine.
Network Engineer III at Fortanix
I can say it is so great for us because if we configure it with Flowspec, the orchestration that we use, which is Kentik, makes the decision and automatically forwards the traffic to another position that we have in our network, or outgoing that we use.
Telecomm Analyst at a tech company with 11-50 employees
It is very stable.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
 

Room For Improvement

Kentik should enhance AI integration, usability, interface navigation, customization, and support for improved analysis and user experience.
Nagios XI's interface is outdated, lacks scalability, needs better cloud integration, APIs, automation, and improved documentation.
More work is required to integrate AI for troubleshooting, simplifying root cause analysis, and providing suggested solutions for network issues.
BDM at a comms service provider with 11-50 employees
It needed to be a bit easier for new users and have slightly more customized reports.
Network Analyst at a comms service provider with 201-500 employees
Currently, the way I'm configuring it uses reactive alerts, which means alerts are triggered when an issue occurs. I would prefer more proactive alerts in the future.
Epicor Engineer at Sunway Group
Many tools have poor user interfaces, making them hard to manage and navigate.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
The GUI could be improved. It's a bit too basic.
Site Duty Manager at Assw
 

Setup Cost

Kentik pricing is competitive but high; volume discounts available; annual contracts; enterprises should budget significantly for full implementation.
Nagios XI provides cost-efficient enterprise-level monitoring with reasonable pricing, appreciated for its features and open-source options.
The pricing is good and aligns with the market target.
Sales Manager at IFX NEtworks
Kentik’s pricing is competitive in the marketplace.
BDM at a comms service provider with 11-50 employees
Later, the prices are very high to maintain all the functionality blocks.
Network Engineer at a media company with 51-200 employees
We are using the free, open-source version.
Site Duty Manager at Assw
The pricing for the Nagios XI product is good and better than other solutions.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
 

Valuable Features

Kentik offers real-time network insights, traffic analysis, and automation, enhancing performance and ease of use for monitoring and cost control.
Nagios XI provides customizable, flexible, and scalable IT infrastructure monitoring with real-time alerts and extensive plugin support.
The best features that Kentik offers are the ability to identify traffic end-to-end and to know which transit is used, if it goes through any other transit, to see the entire flow, from the subscriber to the content provider and vice versa.
Network Engineer at a media company with 51-200 employees
This allows for better understanding of whether there is a critical ongoing case related to incoming traffic, such as a DDoS event, which is crucial for a service provider dealing with numerous customers.
Network Engineer at a comms service provider with 51-200 employees
Kentik has positively impacted our organization because when something happens, we use Kentik to analyze the problem and it brings us a faster solution to the problem, and the troubleshooting is clearer.
Telecomm Analyst at a tech company with 11-50 employees
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
Network and Security Engineer at a educational organization with 1,001-5,000 employees
The alerting system is very effective.
Site Duty Manager at Assw
 

Categories and Ranking

Kentik
Ranking in Network Monitoring Software
12th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
22
Ranking in other categories
Distributed Denial-of-Service (DDoS) Protection (7th)
Nagios XI
Ranking in Network Monitoring Software
16th
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
58
Ranking in other categories
Server Monitoring (9th), IT Infrastructure Monitoring (11th), Cloud Monitoring Software (22nd)
 

Mindshare comparison

As of August 2026, in the Network Monitoring Software category, the mindshare of Kentik is 1.7%, up from 0.8% compared to the previous year. The mindshare of Nagios XI is 2.5%, down from 3.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Kentik1.7%
Nagios XI2.5%
Other95.8%
Network Monitoring Software
 

Featured Reviews

Gcecilio - PeerSpot reviewer
Network Engineer at a media company with 51-200 employees
Traffic insights have reduced transit costs and support secure, direct connections with providers
The best features that Kentik offers are the ability to identify traffic end-to-end and to know which transit is used, if it goes through any other transit, to see the entire flow, from the subscriber to the content provider and vice versa, from the content provider to the subscriber.I can also determine whether it is symmetric or asymmetric traffic, and if it goes through any provider that has some kind of bottleneck. That is very important. Regarding the security part, which is also possible to handle through Kentik, you can configure it in a way that makes the network more secure and reduces the amount of dirty traffic or attacks received. Kentik has had a high positive impact on my organization. Besides the cost reduction, it has been possible to perform troubleshooting more effectively, and also regarding DDoS-related attacks. In addition to cost reduction, we had a more reliable connection. Since the moment we identified that it was possible to have a direct connection with content providers like CDN77, Cloudflare, and Akamai, we established a direct connection there through a PNI with these content providers, making the network less dependent on an IP transit provider.
Emmanuel Appiah Boateng - PeerSpot reviewer
Network and Security Engineer at a educational organization with 1,001-5,000 employees
Simplifies setup and requires user interface enhancement
Nagios XI is easy to install, which sets it apart from other open-source solutions I've tried. Typically, setting up a monitoring system on Linux involves cloning files from GitHub, building it, and installing many dependencies, but with Nagios XI, it wasn't like that. Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
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Comparison Review

it_user174738 - PeerSpot reviewer
IT Developer at a tech services company with 51-200 employees
May 31, 2015
Nagios vs. Zabbix vs. PRTG vs. Spiceworks vs. Solarwinds Network Performance Monitor
I have researched a quite a few network monitoring tools which can be used for various monitoring purposes of not only the servers, but the intermediate routers as well. There are majorly three types of these softwares. Ones which are completely open-source, you can do almost anything you want…
 

Top Industries

By visitors reading reviews
Comms Service Provider
14%
Financial Services Firm
12%
Construction Company
9%
Media Company
9%
Financial Services Firm
9%
Construction Company
8%
Comms Service Provider
7%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise4
Large Enterprise10
By reviewers
Company SizeCount
Small Business22
Midsize Enterprise17
Large Enterprise21
 

Questions from the Community

What is your experience regarding pricing and costs for Kentik?
My experience with pricing, setup costs, and licensing has been limited because I was not responsible for that in my company, but I have spoken with my boss, and he reported that the licensing mode...
What needs improvement with Kentik?
I do not currently use Kentik's anomaly detection. I had communication with Kentik's technical support through a WhatsApp group. When I faced any issues or there were problems with my Kentik collec...
What is your primary use case for Kentik?
I'm using Kentik for my own internal use. My primary use case is to monitor our equipment and to get a more detailed view of where our inbound and outbound traffic is going.
What is your experience regarding pricing and costs for Nagios XI?
The pricing for the Nagios XI product is good and better than other solutions. I would give it a four or five.
What needs improvement with Nagios XI?
The user interface needs improvement. Many tools have poor user interfaces, making them hard to manage and navigate.
What is your primary use case for Nagios XI?
I normally use Nagios XI for our servers. It's not particularly used for network equipment, however, I use it for monitoring our server performance, including CPU, memory, data, and services runnin...
 

Comparisons

 

Overview

 

Sample Customers

Pandora, Yelp, Neustar, Box, University of Washington, Zoom, Tata, and Cogent. 
Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
Find out what your peers are saying about Kentik vs. Nagios XI and other solutions. Updated: August 2026.
908,800 professionals have used our research since 2012.