

Nagios XI and ThousandEyes are competitive products in the IT monitoring category. Nagios XI seems to have an upper hand due to its robust feature set and strong community support, while ThousandEyes stands out with deep network visibility and user-friendliness.
Features: Nagios XI offers extensive plugin compatibility, custom alerting, and scalability for Linux environments. ThousandEyes provides comprehensive end-to-end network path monitoring, seamless integration with Cisco products, and detailed insights into network performance.
Room for Improvement: Nagios XI faces challenges with configuration complexity, lacks a streamlined interface for managing hosts via APIs, and requires manual dashboard setup. ThousandEyes could benefit from enhanced application-layer monitoring, better integration with Cisco platforms, and improved data visualization.
Ease of Deployment and Customer Service: Nagios XI supports deployment across various environments, though it requires more setup time. Its large community offers substantial support resources. ThousandEyes supports diverse deployment models, including hybrid cloud configurations, and is noted for user-friendly deployment and responsive customer service.
Pricing and ROI: Nagios XI has a low initial cost, especially for the open-source version, offering a strong ROI due to its customizable nature and low hardware requirements. ThousandEyes, though pricier, justifies its cost with unique network insights and valuable monitoring for larger enterprises.
There has been a great ROI from using ThousandEyes, with significant time saved in troubleshooting as I can quickly pinpoint issues rather than spending time isolating them, alongside enhancing customer feedback and experience.
I have seen a return on investment by reducing troubleshooting time and having lesser user mapping error issues, in addition to engineering time saved through better observability and reduced organizational MTTR.
We contacted the support team, and they resolved it within a couple of hours.
The customer support for ThousandEyes is very proactive and supportive.
If the user interface isn’t presenting data well, it becomes difficult to manage when scaling.
ThousandEyes's scalability is excellent; it is very scalable and grows with my organization's needs.
Scalability with ThousandEyes is straightforward as you don't really need to scale; it's designed to monitor multiple applications, accommodating 50 or 100 applications simultaneously.
It is very stable.
From my experience, ThousandEyes has been stable up to 95%; I have not seen any stability issues.
ThousandEyes is not very stable; sometimes you have to reboot the servers to get actual results.
Many tools have poor user interfaces, making them hard to manage and navigate.
The GUI could be improved. It's a bit too basic.
Incidents should be alerted on and traced early, before they escalate to full outages.
Introduction of a free version for end-users and enhancements to the user interface for easier navigation.
Detailed analytics on application-level traffic would help in better understanding and managing our network resources effectively.
We are using the free, open-source version.
The pricing for the Nagios XI product is good and better than other solutions.
My experience with pricing, setup cost, and licensing has been that everything was cost-effective.
My experience with pricing, setup cost, and licensing is that it comes in cheaper than alternatives.
Nagios XI simplifies our setup and reduces the time spent configuring monitoring tools.
The alerting system is very effective.
ThousandEyes offers the best features including global internet and cloud visibility from distributed vantage points, application and network performance monitoring, real-time outage detection and incident alerts, end-to-end path visualization for rapid troubleshooting, proactive issue demarcation, and historical data.
With ThousandEyes being able to detect and monitor this, it's fantastic for me. It reduces the workload and also reduces errors in trying to figure out where there is internet downtime, low visibility, or other incidents.
I measure the 70% improvement in customer experience through customer tickets and feedback after resolving issues, where previously, users faced problems and limited time on the platform, and after using ThousandEyes, the user time reached up to five to six hours a day, even for teams possibly totaling 30 hours a day.
| Product | Mindshare (%) |
|---|---|
| ThousandEyes | 1.7% |
| Nagios XI | 2.5% |
| Other | 95.8% |


| Company Size | Count |
|---|---|
| Small Business | 22 |
| Midsize Enterprise | 17 |
| Large Enterprise | 21 |
| Company Size | Count |
|---|---|
| Small Business | 6 |
| Midsize Enterprise | 3 |
| Large Enterprise | 16 |
Nagios XI offers powerful monitoring with customizable scripts and extensive plugin support, making it ideal for those overseeing IT services and infrastructure. It features an intuitive dashboard, real-time alerts, and comprehensive device support, ensuring flexible and scalable network monitoring.
Nagios XI stands out due to its robust monitoring capabilities, emphasizing flexibility and vast plugin support for custom scripts and service monitoring. Users value its intuitive dashboard for real-time alerts and device compatibility, which simplifies installation and enhances scalability and network visualization. Its open-source foundation assures performance and stability, while a setup wizard aids initial configuration. Despite its strengths, Nagios XI could benefit from a more user-friendly interface, enhanced installation processes, better network map customization, improved cloud integration, and alerting capabilities. Users often face hurdles with its scalability, configuration management, and reporting flexibility, and enterprise clients desire improved dashboards, clustering support, and AI integration.
What are some key features of Nagios XI?Nagios XI is widely used in monitoring network servers, infrastructure environments, and IT services. Organizations rely on Nagios XI for comprehensive monitoring of hardware, memory storage, CPUs, databases, services, and applications. It's frequently implemented to manage multiple servers, routers, switches, modems, and power supplies, and integrates with virtual and cloud servers. By supporting custom scripts and data collection, it allows for effective alerts and notifications for network and equipment statuses across various sectors.
ThousandEyes offers cutting-edge monitoring capabilities with advanced features such as end-to-end network monitoring, real-time alerts, and application insights. It supports integration with Cisco products and provides visibility into network paths, helping businesses maintain superior network performance.
ThousandEyes is renowned for its ability to diagnose network issues by offering comprehensive network path visualization and detailed analytics. Its ability to detect packet loss and monitor ISPs ensures robust network security. The integration capabilities, particularly with Cisco platforms, make it versatile for businesses requiring customizable dashboards. Users benefit from ease of use and real-time alert systems, though improvements in guest portal usability, packet analysis, and integration with Cisco platforms are needed. Enhancements in automation, knowledge resources, and application-level features could benefit users, alongside better network device monitoring through SNMP and improved path visualization. Additionally, better incident management and alert detection systems are anticipated.
What are the key features of ThousandEyes?Businesses across sectors leverage ThousandEyes for seamless network monitoring and diagnostics. It is invaluable for ensuring connectivity across LANs, Wi-Fi, internet, and SaaS applications. ThousandEyes provides critical insights into internet and ISP performance, significantly benefiting industries reliant on robust digital infrastructure.
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