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: December 2025).

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AlertSite vs. Zabbix

December 2025

Helped 881,114 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

36th

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

10th

Average Rating

8.4

Reviews Sentiment

7.0

Number of Reviews

108

Ranking in other categories

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

Mindshare comparison

As of January 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.4%, up from 0.2% compared to the previous year. The mindshare of Zabbix is 2.5%, down from 3.0% 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	2.5%
AlertSite	0.4%
Other	97.1%

Application Performance Monitoring (APM) and Observability

Featured Reviews

IsaacSamuel

Assistant Director at a consultancy with 10,001+ employees

Enterprise-level monitoring facilitates global observability and seamless script creation with intuitive tools

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 generative AI. Additionally, support from AlertSite is not at an enterprise level since it is not offered 24/7. Outside of critical platform issues, there's no continuous support available.

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KamranBhatti

Network Engineer at a computer software company with 11-50 employees

Helps reduce response time but has room to improve customization complexity

We are not working on simple standalone solutions like Kaspersky DDoS Protection or Hybrid Cloud Security. Once you understand Zabbix, then it is easy to customize those web pages and graphs for our customer use. It is fully automated to your requirements. Zabbix is working fine with no issues, and I am satisfied with it. We have combined Zabbix and SolarWinds. The integration works fine, and it is easy to integrate Zabbix with the IT environment. We were trying to purchase MDR (Managed Detection and Response), but we are not working on that. I don't have real experience with MDR. We are using Falcon software for that. We are working with Falcon Complete, not with Sandbox. We are not using Kaspersky for business or cloud protection. For that, we are using Zabbix CrowdStrike Falcon Complete solution. I have given this review an overall rating of 8.

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

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

"The alerting capabilities 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."

"The alerting capabilities of AlertSite 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."

"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."

"I highly recommend AlertSite to other users."

"I'm supervising all the IT departments, and Zabbix seems quite good for them. It provides graphics and information in real time. We get alerts about crashes on the system, enabling us to quickly repair issues. We can easily find devices with problems."

"SNMP monitoring, source discovery, and alert triggering are most valuable."

"The performance and bandwidth are valuable features."

"It has good graphs of what is going on within the operating system."

"We detect problems before the customer does and before it actually happens using the predictive functions in Zabbix."

"The initial setup was very quick. The first time it was long because I didn't know it yet. I was only using Windows. The first time was very difficult because of the operating system."

"There are lots of great features and functionality within the solution."

"We have found that Zabbix is more easy to use than other applications."

More Zabbix pros

Cons

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

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

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

"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."

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

"The integration of the product is not so easy, especially when it comes to the application database."

"Look and feel."

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

"Zabbix isn't a great tool for cloud-specific monitoring - its connection to public clouds needs to be improved. Other areas for improvement would be the lack of dashboards and integrations."

"There are some features of Zabbix that are not good for reporting. The DX Spectrum solution has better reporting."

"There are areas of improvement. The database grows really fast. So, when you install Zabbix, you have to deal with some issues, like the database. We become pretty big very fast."

"The only improvement I would suggest, revolves around its AI and ML capabilities."

"In the next release, I'm hoping for features targeted towards larger users with more customizable options. Despite this, I think pre-canned reports that can be used straight out of the box would be beneficial rather than having to configure each report individually. Additionally, a deeper dive into software configurations on the machines would be useful, although I understand there may be challenges in implementing this due to scripting requirements. More documentation would also be appreciated."

More Zabbix cons

Pricing and Cost Advice

"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."

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

"Zabbix is free but if you use it in production then you have to pay for it."

"We pay the subscription for support by year."

"It is worth every cent to pay or even study to do your own installation."

"We use the open-source version of Zabbix."

"It's free software released under the GNU/GPL license."

"The product is an open source and free solution."

"The solution is open source so is free."

"We’re using the free version, which covers all our current needs."

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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881,114 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

13%

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	56
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?

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?

I think Zabbix is economical, whereas SolarWinds is expensive. SolarWinds has a lot of secure features, but Zabbix is providing everything free of cost. Zabbix is economical, and you can install it...

What needs improvement with Zabbix?

The potential and customization is a little difficult because you have to learn scripts. I think Zabbix needs to improve the customization better. At present, I am satisfied with the functionality ...

Broadcom DX Application Performance Management vs AlertSite

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Compared 8% of the time

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Compared 7% of the time

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Compared 5% of the time

Nagios XI vs Zabbix

Compared 4% of the time

Centreon vs Zabbix

Compared 4% of the time

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Product Reports

Download AlertSite product report

AlertSite

January 2026

Download Zabbix product report

January 2026

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