AlertSite vs Splunk Observability Cloud comparison

SmartBear and Splunk are both solutions in the Application Performance Monitoring (APM) and Observability category. SmartBear is ranked #36 with an average rating of 8.0, while Splunk is ranked #8 with an average rating of 8.4. SmartBear holds a 0.4% mindshare in APM, compared to Splunk’s 2.2% mindshare. Additionally, 100% of SmartBear users are willing to recommend the solution, compared to 96% of Splunk users who would recommend it.

AlertSite

Read 7 AlertSite reviews

759 Views
668 Comparison Views

100% willing to recommend

Splunk Observability Cloud

Read 75 Splunk Observability Cloud reviews

7,605 Views
4,183 Comparison Views

96% willing to recommend

AlertSite

Splunk Observability Cloud

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Executive SummaryUpdated on Dec 28, 2025

AlertSite and Splunk Observability Cloud are both key players in the monitoring landscape, each offering unique advantages. Splunk Observability Cloud holds an edge due to its extensive features, although AlertSite offers strengths in areas such as cost-effectiveness and support.

Features: AlertSite provides robust synthetic monitoring, real-time performance metrics, and a user-friendly interface that facilitates easy navigation. Splunk Observability Cloud offers advanced analytics, real-time data processing, and integrated dashboards, providing comprehensive insights into IT operations. Splunk's analytical depth is a key differentiator.

Room for Improvement: AlertSite could enhance its customization options, improve scalability for larger enterprises, and offer more advanced analytics features. Splunk Observability Cloud could benefit from reducing deployment complexity, offering more competitive pricing, and simplifying integration with third-party tools.

Ease of Deployment and Customer Service: AlertSite is renowned for its quick deployment process and efficient customer support. Splunk Observability Cloud similarly provides a streamlined setup process but stands out with its extensive documentation and community resources, supporting broader adaptability.

Pricing and ROI: AlertSite's competitive pricing and favorable ROI make it appealing for budget-conscious organizations. In contrast, Splunk Observability Cloud, while more expensive, justifies its cost with its extensive features and long-term value. Splunk's higher initial cost aligns with its broader capabilities.

To learn more, read our detailed AlertSite vs. Splunk Observability Cloud Report (Updated: December 2025).

Buyer's Guide

AlertSite vs. Splunk Observability Cloud

December 2025

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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)

Splunk Observability Cloud

Ranking in Application Performance Monitoring (APM) and Observability

8th

Average Rating

8.2

Reviews Sentiment

7.0

Number of Reviews

Ranking in other categories

Network Monitoring Software (6th), IT Infrastructure Monitoring (7th), Cloud Monitoring Software (6th), Container Management (6th), Digital Experience Monitoring (DEM) (2nd)

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 Splunk Observability Cloud is 2.2%, up from 1.4% 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 (%)
Splunk Observability Cloud	2.2%
AlertSite	0.4%
Other	97.4%

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.

Read full review

Dhananjay Dileep

Senior Software Engineer at a consultancy with 10,001+ employees

Unified monitoring has improved end-to-end visibility and reduced detection time across apps

When we have too many detectors in place for one particular app, such as when I have created 50+ detectors through my account, the entire page becomes a bit loaded when creating the 51st detector, feeling heavy and taking time to load. Additionally, it throws random errors; for example, when we try to save one detector, it might throw some random error which is not even related, with something else being wrong, not that particular error, but the underlying root cause might be different. Sometimes the error is just "some problem occurred," and we are not able to point out what the real cause is. This mainly happens when we have too many detectors or too many alerts in place rather than a standard number. One more thing is in the alert rules; if we have a main general alert, and instead of creating a new detector, we are adding a new rule under one detector, when the number of rules also increases, such as when we have 10 or 15 rules under one generic detector, that again creates the same kind of problem, taking some time to save that particular newly added rule, and it might not save at times, just keeps on spinning. Those are the two drawbacks which I spotted recently; other than that, everything looks perfect.

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."

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

"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."

"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 alerting capabilities of AlertSite were really helpful."

"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."

"The most valuable feature is the ability to customize dashboards based on my queries or any other customization I may need."

"It is a great resource for us because we have so many different data sources and to be able to aggregate that and put it through a concise dashboard or an alert really helps."

"Detectors are a powerful feature."

"The initial setup of Splunk Real User Monitoring (RUM) was easy."

"The dashboards in Splunk Observability Cloud are amazing, and if you configure them correctly, they are amazing, and it is quite fast as well."

"It's beneficial for monitoring performance and infrastructure, especially when deploying applications with multiple versions with Git."

"The best features in Splunk Observability Cloud are the metrics; I can see any logs or anything related to the server or services we want to monitor, and the metrics are a good function."

"I have definitely seen a return on investment with Splunk Observability Cloud, particularly through how fast it has grown and how comfortable other teams are in relying on its outputs for monitoring and observability."

More Splunk Observability Cloud pros

Cons

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

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

"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."

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

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

"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've only experienced downtime, crashes, or performance issues when it isn't configured correctly."

"A lot of customers had a hard time effectively searching within the data in Splunk. There is a learning curve from searches to indexes and using all the macros that we have created. It is a little difficult for somebody who has not used it quite a bit and does not have a lot of practice with it, but the AI features that we have been hearing about through Splunk will make it a lot easier for us to use human language to search this data. That is big. That is pretty powerful, and that will help a lot with our customers."

"If a customer utilizes third-party tools and wants to forward data from Splunk Observability Cloud, seamless integration would be beneficial."

"It is essential for the monitoring tool to deliver quick response times when generating analytical reports, instead of prolonged delays."

"There are always areas for potential improvement to enhance its functionality and user experience."

"The dashboards are used mainly to visualize information about the infrastructure, but it isn't easy to construct or use the dashboards. While we tried to resolve the issue by calling support, it would be easier if they had an AI co-pilot to identify the problem and help you solve it."

"The UI of Splunk Observability Cloud is one of the major issues; it's old and has been there for more than 10 years, acquired by other applications from other companies. It's time to reinvent how the UI is going to work with the AI modules and integrations, making it softer and cleaner."

"One thing I recently ran into was that the logs on the server most often get Gzipped after they have been rotated. We found that we were not monitoring some of the things, so we had to go back and pull them in. Right now, it pulls one at a time, untars it, or unzips it, so I cannot look at the entire history. There can be an improvement in that area."

More Splunk Observability Cloud cons

Pricing and Cost Advice

"The cost is high."

"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."

"Splunk APM is expensive."

"The solution's pricing is costly."

"It is expensive."

"The price of Splunk APM is less than some of its competitors."

"The pricing is based on several factors, including the scale of deployment."

"Splunk has been fairly expensive, but it has been predictable."

"Splunk's infrastructure monitoring costs can be high because our billing is based on data volume measured in terabytes, rather than the number of devices being monitored."

"Splunk Observability Cloud is expensive."

More Splunk Observability Cloud pricing and cost advice

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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	20
Midsize Enterprise	10
Large Enterprise	47

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.

See all answers

What needs improvement with AlertSite?

See all answers

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...

See all answers

What do you like most about SignalFx?

The most valuable feature is dashboard creation.

See all answers

What needs improvement with SignalFx?

Regarding dashboard customization, while Splunk has many dashboard building options, customers sometimes need to create specific dashboards, particularly for applicative metrics such as Java and pr...

See all answers

What is your primary use case for SignalFx?

The solution involves observability in general, such as Application Performance Monitoring, and generally addresses digital applications, web applications, sites, and mobile applications. I worked ...

See all answers

Comparisons

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Compared 18% of the time

Broadcom DX Application Performance Management vs AlertSite

Compared 13% of the time

New Relic vs AlertSite

Compared 12% of the time

Catchpoint vs AlertSite

Compared 11% of the time

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Avantra vs Splunk Observability Cloud

Compared 2% of the time

Observe vs Splunk Observability Cloud

Compared 2% of the time

Cribl vs Splunk Observability Cloud

Compared 2% of the time

Honeycomb Enterprise vs Splunk Observability Cloud

Compared 2% of the time

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Product Reports

Buyer's Guide

AlertSite

January 2026

Download AlertSite product report

Buyer's Guide

Splunk Observability Cloud

January 2026

Download Splunk Observability Cloud product report

Also Known As

No data available

Splunk Infrastructure Monitoring, Splunk Real User Monitoring (RUM), Splunk Synthetic Monitoring

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

Splunk Observability Cloud offers sophisticated log searching, data integration, and customizable dashboards. With rapid deployment and ease of use, this cloud service enhances monitoring capabilities across IT infrastructures for comprehensive end-to-end visibility.

Focused on enhancing performance management and security, Splunk Observability Cloud supports environments through its data visualization and analysis tools. Users appreciate its robust application performance monitoring and troubleshooting insights. However, improvements in integrations, interface customization, scalability, and automation are needed. Users find value in its capabilities for infrastructure and network monitoring, as well as log analytics, albeit cost considerations and better documentation are desired. Enhancements in real-time monitoring and network protection are also noted as areas for development.

What are the key features?

Log Searching: Efficiently search and analyze logs from various sources.
Data Integration: Seamlessly integrate with multiple environments.
Dashboard Customization: Tailor dashboards to specific monitoring needs.
Monitoring Capabilities: Provides comprehensive insights into application performance.
Security Features: Analyze and address security threats across systems.
Visualization Tools: Enhance data analysis and system performance optimization.

Why consider this for ROI?

Comprehensive Visibility: Gain complete insights into IT infrastructure.
Performance Optimization: Improve overall system performance and efficiency.
Rapid Deployment: Quick setup to meet organization demands swiftly.
Enhanced Security: Strengthen security measures through detailed analytics.

In industries, Splunk Observability Cloud is implemented for security management by analyzing logs from detection systems, offering real-time alerts and troubleshooting for cloud-native applications. It is leveraged for machine data analysis, improving infrastructure visibility and supporting network and application performance management efforts.

Splunk

Sample Customers

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

Sunrun, Yelp, Onshape, Tapjoy, Symphony Commerce, Chairish, Clever, Grovo, Bazaar Voice, Zenefits, Avalara

Buyer's Guide

AlertSite vs. Splunk Observability Cloud

December 2025

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