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: April 2025).

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AlertSite vs. Zabbix

April 2025

Helped 848,270 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 (4th)

Zabbix

Ranking in Application Performance Monitoring (APM) and Observability

8th

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

105

Ranking in other categories

Network Monitoring Software (1st), Server Monitoring (1st), IT Infrastructure Monitoring (1st), Cloud Monitoring Software (2nd)

Mindshare comparison

As of April 2025, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.1%, down from 0.1% compared to the previous year. The mindshare of Zabbix is 3.5%, up from 2.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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…

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ASM Naushad Alam

Network Manager at a financial services firm with 1,001-5,000 employees

Allows any number of customizations but lacks functionality for finding root causes

We have not yet purchased the commercial version so have a lack of technical ability. We do not yet fully know the key points or key features of the solution. We just use what we use along with WhatsUp Gold. Based on our use only, stability is rated a seven out of ten.

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Quotes from Members

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

Pros

"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."

"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 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."

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

"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 of AlertSite were really helpful."

"It can send messages to our ticketing system."

"Zabbix is very easy to implement."

"The performance and bandwidth are valuable features."

"In terms of customization and integration, we have more flexibility. We can automate configurations, define deletion rules, and customize based on the needs. The client interface allows for further configuration, making it quite comprehensive."

"I like being able to use proxy servers for different locations. The agents are pretty cool. They're easy to roll out. The standard out-of-the-box templates are also pretty easy to use. The integration with other learning products is also good. I have, in the past, used Slack, but we've integrated it with Microsoft Teams. We also use it for SMS with a service called Redcoat. It is very flexible. It does what I need it to do, and my manager is very happy because it doesn't cost anything. We are nearing 4,000 hosts inside Zabbix, and we've got another 6,000 access points to add to it. We've thrown everything at it, and it has managed to keep going. I am very impressed with the tool, and I'd shake their hand very hard if I got to say the compliments to the Zabbix team. They keep improving it and doing refreshes, which is one good thing about it. There is also online information as well as books that you can purchase if you're willing to read enough. There is a lot to pick up, but it is a pretty complete solution."

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

"I use the solution to provide a perfect environment for remote connectivity with my clients."

"The most valuable features are the monitoring and the ease with which we can set it up at customer sites with our custom Zabbix proxy and tools."

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."

"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."

"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."

"Its UI needs to be improved a little bit more so that an end-user is also able to handle it. I can handle it, but others should also be able to handle it in a better way. It becomes complex when we are growing and need to add proxies. We need more scalability features and documentation for different use cases. A lot of articles are available, but they need to be in proper documentation. For example, when you have thousands of servers that have to be monitored in different regions of the world, there should be some kind of documentation to describe how you can create proxies and add them. Sometimes, when you are using the database, it can get overloaded. When the network is growing, the number of transactions becomes very high, and the database gets overloaded. There should be information about how to reduce the load on the MySQL database, which is what Zabbix is using. The market is growing a lot, and it should be enhanced for a lot more things. We are currently bringing enhancements at our end for different use cases. For example, when dockerization is going on, how can we check the logs inside the Dockers. We should also be able to monitor and check the number of logins and add features such as SSO login and two-factor authentication as a protocol. These are the security features and concerns that we have to deal with. Currently, we are developing modules to add features to Zabbix, but they should also work on these features."

"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."

"Sometimes, the documentation is a little bit written in Estonia – a country in Europe. The language barrier and translation to English can sometimes make it difficult to understand what they're trying to get at. It's just a language thing."

"Zabbix could improve when it comes to large-scale use cases. Additionally, the inventory could be better when connecting to other solutions, such as ServiceNow. There show to be better integration with other platforms and storage."

"The performance reporting could be improved."

"The reports are not great and should be improved."

"The APM monitoring has room for improvement, although I hear that the new 5.2 version has some improvements in that area, and I'd like to give that a go. I would like to see a few more templates out there for different styles of monitoring. I use the Grafana interface for reporting. I would also like it to have an out-of-the-box ability to email reports. You can create reports, but to be able to email those reports would be really helpful. I've got users who are not interested in logging in and generating a report. They want it all pre-canned and sent to an email address. It would also be really handy if we could pin certain reports up onto platforms such as Teams or SharePoint. A GUI for the proxy server would be cool to have for debugging purposes and for the support teams to have a look at, but I don't know whether that's really feasible to do. I get enough from the log files themselves."

"In an upcoming release, there should be automated reports which we are currently doing manually. For example, if we collect a report file every day and want to send it to a moderator for review. We are expecting this feature to come out soon but it would be valuable to have now."

More Zabbix 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."

"The solution is free to use but they offer support as a paid service. If you can go read the manuals and do the fine-tuning based on your needs, you do not need to pay anything and you will have a full solution."

"Zabbix is open-source so if one wishes to implement it in-house, they must have qualified professionals to set up and optimize databases, Linux/Unix OS, PHP, Apache, and depending on what is monitored, a full-stack network and systems administrator may be needed."

"Zabbix is an open-source tool, and it's free to use."

"We are using the free, open-source version."

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

"It is open source. If you want to have a subscription or official support, you can pay for it. They have different plans, which are not that expensive. The plans are based on per monitoring server, not per monitored equipment. So, it is not at all expensive, and you can also live without the support if you want a cheaper option."

"This solution is completely open-source, so it is quite affordable."

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

More Zabbix pricing and cost advice

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

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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

Financial Services Firm

24%

Computer Software Company

16%

Real Estate/Law Firm

11%

Healthcare Company

Educational Organization

34%

Computer Software Company

12%

Financial Services Firm

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What is your experience regarding pricing and costs for AlertSite?

The pricing is reasonable.

What needs improvement with AlertSite?

When I last worked with AlertSite, everything was okay. However, we could make some changes to the UI. While it was user-friendly, making it a bit easier for new users to work on would be beneficial.

What is your primary use case for AlertSite?

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?

The cost is minimal. It is literally free.

What needs improvement with Zabbix?

For me, Zabbix is very straightforward. I cannot think of any improvements needed. It's a very mature product. The only issue I can note is that it's Linux-based, and Linux documentation is not the...

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Product Reports

Download AlertSite product report

AlertSite

April 2025

Download Zabbix product report

March 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