AlertSite vs Zabbix comparison

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AlertSite

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Executive SummaryUpdated on Jul 24, 2024

AlertSite and Zabbix are monitoring tools in the IT industry. AlertSite has the upper hand due to its user-friendliness and strong customer support, while Zabbix leads with its flexibility and low cost.

Features: AlertSite comprehensive monitoring capabilities, easy-to-configure synthetic transactions, and user-friendly interface. Zabbix robust flexibility, open-source model, and extensive customization options.

Room for Improvement: AlertSite better integration capabilities with third-party tools, additional alerting options, and more customizable dashboards. Zabbix improved documentation, more intuitive setup process, and better native reporting tools.

Ease of Deployment and Customer Service: AlertSite straightforward deployment with strong customer support. Zabbix versatile deployment model but a steeper learning curve and less hands-on customer service.

Pricing and ROI: AlertSite higher initial setup cost, with strong performance and support justifying the ROI. Zabbix low setup costs due to its open-source nature, with excellent ROI despite less robust support.

To learn more, read our detailed AlertSite vs. Zabbix Report (Updated: September 2025).

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AlertSite vs. Zabbix

September 2025

Helped 869,760 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

AlertSite

Ranking in Application Performance Monitoring (APM) and Observability

37th

Average Rating

8.0

Reviews Sentiment

7.6

Number of Reviews

Ranking in other categories

API Monitoring Software (3rd)

Zabbix

Ranking in Application Performance Monitoring (APM) and Observability

9th

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

107

Ranking in other categories

Network Monitoring Software (1st), Server Monitoring (1st), IT Infrastructure Monitoring (1st), Cloud Monitoring Software (1st)

Mindshare comparison

As of October 2025, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.2%, up from 0.2% compared to the previous year. The mindshare of Zabbix is 3.2%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Performance Monitoring (APM) and Observability Market Share Distribution
Product	Market Share (%)
Zabbix	3.2%
AlertSite	0.2%
Other	96.6%

Application Performance Monitoring (APM) and Observability

Featured Reviews

SandeepTarwe

Team lead at Tata Consultancy

Alerting capabilities have enabled timely escalation and resolution of issues

In AlertSite, I was monitoring the kiosks and servers for JetBlue Airlines. The servers would trigger alerts if there were any outages or issues with any of the kiosks, servers, or the ticketing tool. I monitored these alerts and escalated them to the concerned team to rectify them at the earliest…

Read full review

B Ahmed

Manager, Information Technology Zara & Inditex at Cenomi

Enables seamless global client monitoring with reliable remote connectivity

I use the solution to provide a perfect environment for remote connectivity with my clients. Many tools that I require for system maintenance are included. I can easily monitor all of my clients throughout the world I did not give much thought to it, however, improvements could be made to Zabbix.…

Read full 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."

"The alerting capabilities of AlertSite were really helpful."

"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."

"There are custom reports available along with the inbuilt reports."

"I highly recommend AlertSite to other users."

"The alerting capabilities were really helpful."

"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."

"This solution has numerous advantages. It's extremely simple to configure. Either digital monitors or single-URL monitors are simple to configure and build."

"Its overall flexibility is most valuable. When our customers have some custom applications that are not necessarily covered by the community or a standard monitoring tool, we use Zabbix to build our own modules with our own templates. This feature has been useful in using Zabbix for infrastructure and IT monitoring. It has also been useful for industrial equipment monitoring. Zabbix is very lightweight. It is efficient in terms of performance because it doesn't use a lot of resources."

"The integration with third-party tools and the alerts are most valuable."

"We are able to do problem determination on runaway processes."

"The basic setup is very easy."

"We use Zabbix to monitor our organization's IT infrastructure and workstations. We don't use Microsoft Intune since it's expensive. The tool's real-time alerting system has proved crucial for us, particularly when a new device joins a network that is not one of our own devices. It notifies us about the presence of this new device, allowing us to investigate further. Additionally, it alerts us about disk usage, memory usage, and the software installed on the machine."

"Zabbix has high scalability. I would rate it a nine out of ten."

"The most valuable feature is the support for monitoring Cisco switches."

"The initial setup, while not simple, is easier than other products."

More Zabbix pros

Cons

"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."

"Additionally, support from AlertSite is not at an enterprise level since it is not offered 24/7."

"I would like the ability to get more data points with regard to some of the unique requirements that we have."

"I could use a few changes to the user interface."

"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."

"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."

"It is not compatible with all of the product platforms that we use."

"The main problem with Zabbix is that you have to spend time writing templates for all of the products that you have."

"The solution needs to add remote features."

"The only issue I can note is that it's Linux-based, and Linux documentation is not the best."

"The stability could be better."

"When using this solution in enterprise monitoring, you are able to see that there are some issues with equipment that could be causing a problem. Sometimes you want to make a root command that you do not want to be executed automatically. What we have tried to do is open an SSH session directly from the solution's interface but it is not possible."

"In terms of user-friendliness, large maps could be more interactive. We should be able to click on some areas and move some objects. It would make it simpler to see things while analyzing some dedicated parameters."

"There are a lot of areas for improvement, specifically in the dashboards and reports functionalities."

"The user web interface is a little bit too basic, we need to link Zabbix to Grafana to have more options, such as graphs and charts. The interface needs to be improved. Additionally, there could be better integration with Grafana API."

More Zabbix cons

Pricing and Cost Advice

"The cost is high."

"My company pays to use AlertSite, but I'm unsure of the exact costs because it depends on how many monitors you have."

"We purchased the license once and had the option of selecting the number of user licenses."

"This is an open-source solution that can be used free of charge."

"It’s free of cost."

"My manager is very happy because it doesn't cost anything."

"For pricing, it's free. We don't pay anything for it. They open-source the code, and people pay for support."

"We purchased Zabbix for a good price, including support"

"We were searching for an open source solution and Zabbix fit the bill because it is free and open source under the GPL license."

"There are no licenses."

"I was using the free, Community Edition."

More Zabbix pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Application Performance Monitoring (APM) and Observability solutions are best for your needs.

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869,760 professionals have used our research since 2012.

Comparison Review

it_user174738

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…

Read full review

Top Industries

By visitors reading reviews

No data available

Computer Software Company

15%

Financial Services Firm

10%

Comms Service Provider

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	53
Midsize Enterprise	23
Large Enterprise	34

Questions from the Community

What is your experience regarding pricing and costs for AlertSite?

I would rate the pricing aspects of AlertSite as nine out of ten, indicating it is good or low-priced.

What needs improvement with AlertSite?

SmartBear, as a vendor, is focusing more on API management and testing rather than monitoring. AlertSite could benefit from more future-focused innovation, especially with competencies in generativ...

What is your primary use case for AlertSite?

I have been working with the AlertSite ( /products/alertsite-reviews ) product since 2019. Within our organization, specifically one service unit at one of the Big Four firms, this product has been...

What do you like most about Zabbix?

The template system in Zabbix is very beneficial as it saves time in configuration.

What is your experience regarding pricing and costs for Zabbix?

If you want to save costs, you can use Zabbix.

What needs improvement with Zabbix?

The reporting is lacking because this is an open-source tool, and nowadays, management's expectation is that the reports should be of high quality and every information should be presented in a con...

Broadcom DX Application Performance Management vs AlertSite

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Compared 6% of the time

NetXMS vs Zabbix

Compared 5% of the time

Centreon vs Zabbix

Compared 4% of the time

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Product Reports

Download AlertSite product report

AlertSite

October 2025

Download Zabbix product report

September 2025

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:

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.
Monitor APIs: Check to see that your internal, external, and third-party APIs are working properly, returning the correct content, and performing as expected.
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.
Monitor mobile: Monitor your mobile-friendly websites, native mobile apps, carrier-based nodes, and network speeds with real devices (3G, 4G LTE).
Monitor SLAs: Make sure you're meeting service-level agreements' requirements. SLA requirements are monitored and reported on by AlertSite.
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.

SmartBear

Zabbix is an open-source monitoring software that provides real-time monitoring and alerting for servers, networks, applications, and services.

It offers a wide range of features including data collection, visualization, and reporting.

With its user-friendly interface and customizable dashboards, Zabbix helps organizations ensure the availability and performance of their IT infrastructure.

Sample Customers

JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics

1. IBM 2. Dell 3. Cisco 4. HP 5. Oracle 6. Microsoft 7. Amazon 8. Google 9. Facebook 10. Twitter 11. LinkedIn 12. Netflix 13. Adobe 14. VMware 15. Salesforce 16. SAP 17. Intel 18. AT&T 19. Verizon 20. T-Mobile 21. Vodafone 22. Ericsson 23. Nokia 24. Siemens 25. General Electric 26. Honeywell 27. Philips 28. Sony 29. Samsung 30. LG 31. Panasonic 32. Toshiba