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Comparison Buyer's Guide
Executive Summary

We performed a comparison between AlertSite and Nagios XI based on real PeerSpot user reviews.

Find out what your peers are saying about Datadog, Dynatrace, New Relic and others in Application Performance Monitoring (APM) and Observability.
To learn more, read our detailed Application Performance Monitoring (APM) and Observability Report (Updated: March 2024).
765,386 professionals have used our research since 2012.
Featured Review
Quotes From Members
We asked business professionals to review the solutions they use.
Here are some excerpts of what they said:
Pros
"I found multiple features in AlertSite that I like. One is data monitoring history, for example, a history of the blackouts and the data. Sometimes, there's a glitch in the application that AlertSite can capture, and the tool notifies you about that glitch. It also identifies issues that could happen in the future. AlertSite is also a fast tool that you can use to monitor on-premise servers, internal applications, and even global applications. The data is available on a single UI in AlertSite, so there's no need to monitor and click on different applications or URLs. I also love that the tool is quite user-friendly, apart from being fast.""This solution has numerous advantages. It's extremely simple to configure. Either digital monitors or single-URL monitors are simple to configure and build.""There are custom reports available along with the inbuilt reports.""If there are any issues, it triggers an alert within 30 seconds. When it triggers the alert, we go ahead and check it immediately. The alert is triggered on a real-time basis.""The best feature of AlertSite is that it shows you a visual graph and also sends you notifications about errors, so you get immediate notifications about errors which means that your support team can start taking steps and more quickly make sure the site is up and that customer experience isn't interrupted in terms of using your system and your products. AlertSite is a very good tool. It's user-friendly, and you can see everything on the dashboard. Configuring it is also easy."

More AlertSite Pros →

"The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use.""The dashboard allows you to see what's going on in the overall system.""You want to monitor a specific metric that nobody else has? You can do it even with the most basic of scripting skills, and you can always share it with the vast community of Nagios Exchange.""The Script Module in Nagios is really easy to use and is really cost efficient.""Nagios XI helped me to draw the network and check for system failures.""The features I've found the most useful are the plug-ins, the fact that you can connect almost everything to it. That's very useful.""The solution has a lot of plugins and scripts integrated with it.""Nagios XI is a simple monitoring tool with performance management."

More Nagios XI Pros →

Cons
"It is not compatible with all of the product platforms that we use.""AlertSite sometimes triggers false alerts or fake alerts, which needs to be rectified. When we see an alert and go ahead and run certain tests on it, the test always passes. However, on the main screen, it shows up as critical. Therefore, the false alert needs to be fixed.""What needs improvement in AlertSite is the documentation, particularly the lack of documentation. If there's a specific activity you want to do, you can't even find information on how to do it, so you have to contact the AlertSite support team to assist you, and only then would the issue be resolved. At the moment, it's not easy to find or get full documentation on how to deal with different issues. You always have to go back to AlertSite support and get help. The documentation for AlertSite could be improved and it's what I'd like to see in the next release of the tool because at the moment, the documentation isn't complete, so you'll have to contact support, but contacting support isn't an issue because the team responds to you quickly.""One area that needs improvement in AlertSite is the slow UI. I'm using the classic UI because it's quite user-friendly, or in human-readable format, but it's a little slow. It takes time to load all the monitors, so if that could be sped up, that would be helpful. The AlertSite support team also needs improvement in terms of availability. Most of the agents in the team aren't available 24 x 7, so if there's something you need to discuss, you need to tell the support team ahead of time to schedule it. Multiple times, when a case comes up during weekends or whenever my team is doing an update, support needs improvement, availability-wise. I use AlertSite for synthetic monitoring, so whatever is available right now is okay, but if I want to request a new feature on a website, currently, the UI refreshes automatically. I would like to have the option on AlertSite to configure that manually. The UI auto-updates every few minutes, so if I can control that manually, that would be helpful.""I would like the ability to get more data points with regard to some of the unique requirements that we have."

More AlertSite Cons →

"The product could be optimized to improve the administrative user experience via the Nagios Core Configuration (NCC) GUI module.""I would like a much easier GUI so that I can delete events and logs, which will free up a lot of space.""It can be quite difficult to know which drivers and agents to use when setting up.""The technical support is variable - sometimes I get answers, but most of my tickets go unanswered.""The interface could be more user-friendly.""The scalability of Nagios XI is scalable. However, it is not easy to do.""The product's stability could be even better.""It is really difficult to integrate Nagios XI with another system to generate logs and alert our management of failures in security infrastructure."

More Nagios XI Cons →

Pricing and Cost Advice
  • "We purchased the license once and had the option of selecting the number of user licenses."
  • "My company pays to use AlertSite, but I'm unsure of the exact costs because it depends on how many monitors you have."
  • "The cost is high."
  • More AlertSite Pricing and Cost Advice →

  • "The pricing is really cost efficient. The licensing is perpetual and can be renewed very easily."
  • "You can grow into the higher-priced scale as they learn how to utilize the features for Nagios XI."
  • "For the cost of the commercial product and support, and taking into account the open source characteristics of it, I believe it is difficult to a better value."
  • "We are using the free version of this solution."
  • "This solution is very expensive, at approximately $5,000 USD when I purchased it, which is why I haven't upgraded my version in several years."
  • "The licensing fees for this solution are approximately $3,000 USD per year."
  • "The pricing is high with separate licensing for the product and support."
  • "Nagios Core does not have any payment, but Nagios XI requires payment for the license."
  • More Nagios XI Pricing and Cost Advice →

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    Comparison Review
    Anonymous User
    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 using these, but they require quite some expertise before you can use them. Then there are the ones that are not open source, the enterprise softwares and cost you some money, but on the other hand, they are extremely easy to set-up and learn. You can have them up and running in a matter of minutes. And then there are those which are completely cloud based. They can be free of cost or charge some money depending on the software. The good thing about these is that you don’t have to install any extra software, and it can be managed completely online but then again these have limited features and you cannot exploit them to the full extent as you can do with the open-source and to some extent the enterprise software, so I won’t suggest you to use these, because these are generally not the complete solutions and require other support software to achieve the same. Below I have listed the outstanding pros and cons of the various Network analyzers that you can look into Nagios Pros: Nagios offers an extensive set of collector plug-ins that allows users to gather performance and availability data from a broad range of operating systems, including  Windows and Netware Nagios… Read more →
    Questions from the Community
    Top Answer:I found multiple features in AlertSite that I like. One is data monitoring history, for example, a history of the blackouts and the data. Sometimes, there's a glitch in the application that AlertSite… more »
    Top Answer:The management team handles the licensing policy for AlertSite. I have some billing details, but I'm unable to share them.
    Top Answer:One area that needs improvement in AlertSite is the slow UI. I'm using the classic UI because it's quite user-friendly, or in human-readable format, but it's a little slow. It takes time to load all… more »
    Top Answer:It is an open-source platform with valuable features for performance and stability.
    Top Answer:I don't deal with the licensing aspect of the product.
    Top Answer:The product's stability could be even better.
    Ranking
    Views
    333
    Comparisons
    248
    Reviews
    5
    Average Words per Review
    966
    Rating
    8.0
    Views
    10,655
    Comparisons
    8,242
    Reviews
    10
    Average Words per Review
    343
    Rating
    8.1
    Comparisons
    Postman logo
    Compared 25% of the time.
    ITRS Geneos logo
    Compared 22% of the time.
    Dynatrace logo
    Compared 20% of the time.
    New Relic logo
    Compared 17% of the time.
    Datadog logo
    Compared 16% of the time.
    Zabbix logo
    Compared 16% of the time.
    Nagios Core logo
    Compared 13% of the time.
    PRTG Network Monitor logo
    Compared 10% of the time.
    Icinga logo
    Compared 4% of the time.
    Wireshark logo
    Compared 4% of the time.
    Learn More
    Overview

    SmartBear's AlertSite is an application performance management and system monitoring software. AlertSite is an early warning system that users can rely on to monitor their websites, web apps, and APIs from any physical location as well as from within their private networks. It offers real-time alerting with root-cause analytics and robust reporting. AlertSite allows you to proactively monitor from an independent network of over 350 monitoring nodes worldwide.

    Here are AlertSite’s 6 use cases: 

    1. Monitor web: AlertSite monitors beyond availability to detect performance anomalies and notify the appropriate people when deviations occur, whether it's online apps or websites.

    2. Monitor APIs: Check to see that your internal, external, and third-party APIs are working properly, returning the correct content, and performing as expected.

    3. Monitor apps: With nearly any action, monitor your online sites and applications using actual browsers, just like a consumer. There is no need for scripting.

    4. Monitor mobile: Monitor your mobile-friendly websites, native mobile apps, carrier-based nodes, and network speeds with real devices (3G, 4G LTE).

    5. Monitor SLAs: Make sure you're meeting service-level agreements' requirements. SLA requirements are monitored and reported on by AlertSite.

    6. Monitor cloud: Monitor your cloud-based applications to improve mobility. AlertSite monitors your apps across public and private clouds, giving you complete visibility into their status.

    AlertSite Features

    AlertSite has many valuable key features. Some of the most useful ones include:

    • Enables a comprehensive view of UI and API performance.

    • Monitoring coverage from 350+ worldwide nodes and private networks.
    • Integrates with DevOps and Ops tool stacks.

    • Displays availability and performance data that assist in determining the root cause of performance problems.

    • With AlertSite's Single Sign-On (SSO) support, you can assist your authentication procedures.

    • Free training and assistance. AlertSite’s responsive team is always there to assist you, from the initial rollout through day-to-day support.

    • Eliminates the stress of false alerts using these key features:

      • Tracks the performance of your apps, APIs, and websites.

      • Sets up monitor and alarm schedules, as well as blackout periods and retry choices.

      • Sets alert thresholds that are both static and dynamic.

      • Calculates the number of failures needed to set off an alarm.

      • After the first failure, retries logic.

      • Based on error code, sends an alert to recipients and group routing.

      • Tests from over 85 different locations across the world, with internal and external monitoring.

      • Defines assertions and validations.

      • Integrates with PagerDuty, Slack, Splunk, VictorOps, and more.
    • Easy configuration with help from these key features:

      • DejaClick is an intuitive, seamless plug-in for documenting web transactions and user journeys.

      • Use the point-and-click script creation for website, web, and mobile monitor scripts.

      • Benefit from using native API monitor creation.

      • Scripts for functional tests can be reused.

      • Automate monitor creation by using Swagger Specs or OpenAPI Specification files.

    Nagios XI provides monitoring of all mission-critical infrastructure components, including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Third-party add-ons provide tools for monitoring virtually all in-house and external applications, services, and systems.

    Nagios XI uses a powerful Core 4 monitoring engine that provides users with the highest levels of server monitoring performance. This high degree of performance enables nearly limitless scalability and monitoring powers.

    With Nagios XI, stakeholders can check up on their infrastructure status using the role-based web interface. Sophisticated dashboards enable access to monitoring information and third-party data. Administrators can easily set up permissions so users can only access the infrastructure they are authorized to view.

    Nagios XI Benefits and Features

    Some of the benefits and top features of using Nagios XI include:

    • Extensive IT infrastructure monitoring: Comprehensively monitor all of your organization’s infrastructure’s components. Hundreds of third-party add-ons let you monitor virtually any internal application, service, or system.

    • Proactivity: With built-in, automated trend analysis and capacity planning charts, organizations can plan infrastructure upgrades before legacy systems encounter unexpected issues. IT staff, business stakeholders, and end users are notified via email or SMS with details of the outage so they can begin handling the issue immediately.

    • Multiple integration options: Numerous available APIs allow seamless integration with in-house and third-party applications. Thousands of community-developed add-ons that extend monitoring and native alerting capabilities as well as custom interfaces are available, allowing you to customize Nagios XI to your company's needs.

    • Complete visibility: Get a single view of your entire IT operations network and business processes. The Nagios XI dashboards provide at-a-glance access to monitoring information and third-party data. Views give users quick access to the most useful information.

    • User-friendly interface: Customize the layout, design, and settings for each user’s GUI, providing clients and team members with the flexibility they need. Administrators can easily delegate control over monitoring configuration management, system settings, and more to end users and team members using the built-in web-based configuration interface. A configuration wizard guides users through the process of monitoring new devices, services, and applications without understanding complex monitoring concepts.

    • Configuration snapshots: Snapshots allow you to save and archive your most recent configurations. Later on, you can revert back to them whenever you like.

    • Advanced user management: Ensure a secure infrastructure environment by easily setting up and managing user accounts and assigning custom roles with just a few mouse clicks.

    Reviews from Real Users

    Nagios XI stands out among its competitors for a number of reasons. Several major ones are its integration options and monitoring abilities, as well as its alerting features.

    David P., a senior DevOps engineer at EML Payments Ltd, writes, “We use Nagios as a network discovery tool. We use Nagios to maintain our uptime statistics and to monitor our services. It has allowed us to be much more sophisticated in our monitoring and alerting.”

    An IT-OSS manager at a comms service provider notes, “Nagios XI has a custom API feature, and we can expose custom APIs for our integration. This is a great feature.”

    Sample Customers
    JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics
    Nagios has over one million users globally, including AOL, DHL, McAfee, MCI, MTV, Yahoo!, Universal, Toshiba, Sony, Siemens, and JPMorgan Chase.
    Top Industries
    VISITORS READING REVIEWS
    Financial Services Firm21%
    Computer Software Company16%
    Manufacturing Company11%
    Retailer9%
    REVIEWERS
    Comms Service Provider32%
    Manufacturing Company24%
    Financial Services Firm12%
    Retailer8%
    VISITORS READING REVIEWS
    Educational Organization47%
    Computer Software Company9%
    Financial Services Firm5%
    Government5%
    Company Size
    VISITORS READING REVIEWS
    Small Business16%
    Midsize Enterprise8%
    Large Enterprise76%
    REVIEWERS
    Small Business39%
    Midsize Enterprise27%
    Large Enterprise34%
    VISITORS READING REVIEWS
    Small Business12%
    Midsize Enterprise53%
    Large Enterprise35%
    Buyer's Guide
    Application Performance Monitoring (APM) and Observability
    March 2024
    Find out what your peers are saying about Datadog, Dynatrace, New Relic and others in Application Performance Monitoring (APM) and Observability. Updated: March 2024.
    765,386 professionals have used our research since 2012.

    AlertSite is ranked 20th in Application Performance Monitoring (APM) and Observability with 5 reviews while Nagios XI is ranked 7th in IT Infrastructure Monitoring with 54 reviews. AlertSite is rated 8.0, while Nagios XI is rated 8.2. The top reviewer of AlertSite writes "Quickly triggers alerts, fast and user-friendly, and makes data available in a single UI". On the other hand, the top reviewer of Nagios XI writes "Great for monitoring IT services infrastructure with nice tools and helpful notifications". AlertSite is most compared with Postman, ITRS Geneos, Dynatrace, New Relic and Datadog, whereas Nagios XI is most compared with Zabbix, Nagios Core, PRTG Network Monitor, Icinga and Wireshark.

    We monitor all Application Performance Monitoring (APM) and Observability reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.