Best Website Monitoring Software - Page 4

How Many Website Monitoring Software Products Does G2 Track?

Total Products under this Category: 307

Category Stats (Oct 2026)

  • Average Rating: 4.58/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Uptimia (+1.78%) - Among all products in this category, Uptimia recorded the largest rating increase compared to last month

Last updated: October 11, 2026

How Does G2 Rank Website Monitoring Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 9,000+ Authentic Reviews
  • 307+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Website Monitoring Software

G2 Grid® for Website Monitoring Software plotting products by satisfaction and market presence

Highlighted products: Site24x7, UptimeRobot, Uptime.com, Datadog, Better Stack, IBM Instana, Dynatrace, and Pulsetic.

Underlying data: [Grid® JSON](https://www.g2.com/categories/website-monitoring/grids.json?focus%5B%5D=site24x7&focus%5B%5D=uptimerobot&focus%5B%5D=uptime-com&focus%5B%5D=datadog&focus%5B%5D=better-stack&focus%5B%5D=ibm-instana&focus%5B%5D=dynatrace&focus%5B%5D=pulsetic)

Icinga Infrastructure Monitoring

Icinga is an open source monitoring platform for enterprise infrastructure and services. Organizations use Icinga to monitor servers, networks, cloud infrastructure, Kubernetes environments, applications, databases, VMware, and Windows systems across distributed and heterogeneous IT environments. Developed in Germany, Icinga is used by global enterprises, public institutions, service providers, and mid-sized companies that require flexible and scalable monitoring without vendor lock-in. The free and open source Icinga core already delivers comprehensive monitoring capabilities for infrastructure and services. Organizations can build and operate fully featured monitoring environments without licensing barriers while keeping full control over their monitoring data, workflows, and integrations. Icinga is designed for complex environments where standard monitoring approaches often reach their limits. Its distributed architecture supports everything from smaller deployments to large multi-site infrastructures with thousands of monitored systems and services. High availability and workload distribution help maintain operational resilience in critical environments. The platform integrates naturally into existing IT operations and DevOps ecosystems. Open APIs, Infrastructure as Code practices, and automation capabilities support standardized and scalable monitoring workflows. Icinga Director enables centralized configuration management and automated synchronization with external sources such as CMDBs, inventory systems, and cloud platforms. Monitoring data from different technologies and environments is consolidated into a unified operational view. Teams can combine health checks, metrics, and logs to troubleshoot incidents faster, analyze trends, and improve capacity planning. Dashboards, reporting, and business process views help operations teams and service owners focus on the information that matters most. Icinga supports integrations with tools such as PagerDuty, Opsgenie, Slack, Grafana, Prometheus, and many other operational platforms. Thousands of plugins and extensions allow organizations to adapt monitoring to their own infrastructure and operational requirements. Optional enterprise subscriptions provide professional support, long-term maintenance, and selected enterprise features such as Dependency Views and advanced team management capabilities. Organizations use Icinga to build scalable, vendor-independent monitoring strategies for modern infrastructure while maintaining flexibility across on-premises, cloud-native, and hybrid environments.

Average Rating: 4.4/5.0

Total Reviews: 22

How Do G2 Users Rate Icinga Infrastructure Monitoring?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.2/10)
  • Ease of Admin: 7.9/10 (Category avg: 8.9/10)
  • Baseline: 8.3/10 (Category avg: 9.0/10)
  • Reporting: 8.3/10 (Category avg: 8.9/10)

Who Is the Company Behind Icinga Infrastructure Monitoring?

  • Seller: Icinga
  • Year Founded: 2018
  • HQ Location: Nuremberg, Bavaria
  • LinkedIn® Page: www.linkedin.com
    14 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services
  • Company Size: 55% Large, 36% Medium

What Are Recent G2 Reviews of Icinga Infrastructure Monitoring?

OneUptime

OneUptime is a complete open source observibility platform. We give you a beautiful status page for your business, monitors your web apps, and alerts your team when downtime happens.

Average Rating: 3.7/5.0

Total Reviews: 5

How Do G2 Users Rate OneUptime?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.2/10)
  • Ease of Admin: 6.3/10 (Category avg: 8.9/10)
  • Baseline: 7.5/10 (Category avg: 9.0/10)
  • Reporting: 6.7/10 (Category avg: 8.9/10)

Who Is the Company Behind OneUptime?

  • Seller: OneUptime
  • Year Founded: 2015
  • HQ Location: New York, US
  • Twitter: @OneUptimeHQ
    375 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 60% Small, 40% Medium

What Do G2 Reviewers Say About OneUptime?

AI-generated summary from verified user reviews

Cons
  • Users are disappointed with poor customer support from OneUptime, facing delays and unresolved access issues with their purchases.
  • Users report a poor mobile experience due to slow support and access issues after licensing delays.
  • Users report poor reporting and unhelpful support from OneUptime, leading to access and billing frustrations.
  • Users report slow performance in response times from OneUptime, creating frustration and hindering access to purchased services.
  • Users report slow support and unresolved access issues, causing frustration and dissatisfaction with OneUptime's task management.

What Are Recent G2 Reviews of OneUptime?

OnlineOrNot

OnlineOrNot monitors your websites, APIs, and cron jobs, and sends you immediate alerts when things go wrong via Email, SMS, Slack, Discord, PagerDuty, and more.

Average Rating: 4.9/5.0

Total Reviews: 4

How Do G2 Users Rate OnlineOrNot?

  • Baseline: 9.2/10 (Category avg: 9.0/10)
  • Reporting: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind OnlineOrNot?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About OnlineOrNot?

AI-generated summary from verified user reviews

Pros
  • Users love the easy-to-use dashboard of OnlineOrNot, enabling quick setup and seamless integration into workflows.
  • Users commend the ease of use of OnlineOrNot, facilitating a seamless setup and integration process.
  • Users appreciate the easy integrations of OnlineOrNot, allowing seamless fitting into existing workflows with built-in options.
  • Users find the easy setup of OnlineOrNot allows quick migration and seamless integration into workflows.
  • Users find implementation easy with OnlineOrNot, facilitating quick migration and seamless integration into existing workflows.
Cons
  • Users notice update issues with documentation, requiring support outreach when new features are not reflected promptly.

What Are Recent G2 Reviews of OnlineOrNot?

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RapidSpike

Performance. Monitoring. Peace of Mind. RapidSpike helps eCommerce brands stay fast, safe, and in control — from visit to checkout. Comprehensive Website Monitoring, Simplified. From real-time alerts to detailed analytics, RapidSpike provides everything you need to maintain a high-performing website. Here are the key features: Performance Analytics: Monitor loading issues and user experience. Uptime Monitoring: Ensure websites are always available to users. Revenue Tracking: Identify potential revenue leaks in real-time. Trusted by businesses of all sizes, our platform helps you stay ahead of issues, improve performance, and build a seamless user experience. Protect your business and maximise your potential with RapidSpike.

Average Rating: 4.8/5.0

Total Reviews: 4

How Do G2 Users Rate RapidSpike?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.2/10)
  • Ease of Admin: 10.0/10 (Category avg: 8.9/10)
  • Baseline: 10.0/10 (Category avg: 9.0/10)
  • Reporting: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind RapidSpike?

  • Seller: RapidSpike
  • Year Founded: 2015
  • HQ Location: Leeds, GB
  • Twitter: @rapidspike
    1,322 Twitter followers
  • LinkedIn® Page: uk.linkedin.com
    6 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Small, 25% Medium

What Do G2 Reviewers Say About RapidSpike?

AI-generated summary from verified user reviews

Pros
  • Users value the reliable alerting features of RapidSpike, enabling proactive management of site performance issues.
  • Users commend the excellent support team at RapidSpike for their helpfulness and quick setup assistance.
  • Users find RapidSpike easy to use, appreciating its intuitive alerts that help monitor site performance effectively.
  • Users appreciate the easy setup with RapidSpike, thanks to responsive support ensuring smooth and efficient monitoring.
  • Users find the error tracking of RapidSpike invaluable for quickly identifying and resolving site issues.

What Are Recent G2 Reviews of RapidSpike?

Uptimia

Website performance monitoring service from 171 worldwide checkpoints, on six continents. Get SMS/E-mail alerts when your website has problems.

Average Rating: 4.8/5.0

Total Reviews: 4

How Do G2 Users Rate Uptimia?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.2/10)
  • Ease of Admin: 8.3/10 (Category avg: 8.9/10)
  • Baseline: 8.9/10 (Category avg: 9.0/10)
  • Reporting: 8.9/10 (Category avg: 8.9/10)

Who Is the Company Behind Uptimia?

Who Uses This Product?

  • Company Size: 75% Small, 25% Large

What Are Recent G2 Reviews of Uptimia?

360 Monitoring

360 Monitoring is an all-in-one continuous server and site monitoring solution that allows you to monitor all your servers and sites in one place. Whether you are a web development agency, a systems administrator, or an e-commerce owner, 360 Monitoring offers you a powerful yet simple solution to ensure optimal server performance and site uptime for your business. Thanks to its user-friendly interface, the setup will take minutes, not hours. All 360 Monitoring dashboards, reports and advanced real-time alerts are fully customizable to ensure that they best fit your specific needs.

Average Rating: 4.3/5.0

Total Reviews: 3

How Do G2 Users Rate 360 Monitoring?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.2/10)
  • Ease of Admin: 6.7/10 (Category avg: 8.9/10)
  • Reporting: 6.7/10 (Category avg: 8.9/10)

Who Is the Company Behind 360 Monitoring?

  • Seller: WebPros
  • Year Founded: 2017
  • HQ Location: Switzerland
  • LinkedIn® Page: www.linkedin.com
    726 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Large, 67% Medium

What Do G2 Reviewers Say About 360 Monitoring?

AI-generated summary from verified user reviews

Pros
  • Users value the comprehensive monitoring capabilities of 360 Monitoring, as it centralizes all necessary insights effectively.
  • Users value the configuration ease of 360 Monitoring, finding it simple to set alerts and customize dashboards.
  • Users appreciate the dashboard usability of 360 Monitoring, finding it easy to configure alerts and dashboards.
  • Users value the easy setup of 360 Monitoring, allowing for quick configuration of alerts and dashboards.
  • Users value the comprehensive monitoring capabilities of 360 Monitoring, enabling efficient management of server performance and statistics.
Cons
  • Users find the lack of detailed information in reports limits effective diagnostics and performance evaluations.
  • Users find the limited features of 360 Monitoring hinder their ability to manage server health effectively on-the-go.
  • Users find the poor mobile compatibility of 360 Monitoring limits their ability to manage server health on the go.
  • Users find the reporting features inadequate, with limited data hindering detailed diagnostics and performance evaluation.

What Are Recent G2 Reviews of 360 Monitoring?

AppBeat

AppBeat is tool for monitoring websites, online services and servers. It tracks uptime and response times. If outage is detected automatic notifications are sent to owner(s). AppBeat offers also free public status page and module for communicating scheduled maintenance.

Average Rating: 4.0/5.0

Total Reviews: 3

How Do G2 Users Rate AppBeat?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.2/10)
  • Ease of Admin: 10.0/10 (Category avg: 8.9/10)
  • Baseline: 8.3/10 (Category avg: 9.0/10)
  • Reporting: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind AppBeat?

  • Seller: AppBeat
  • Year Founded: 2016
  • HQ Location: Calgary, CA
  • Twitter: @AppBeatMonitor
    75 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    20 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of AppBeat?

BugSnag

BugSnag helps you deliver better user experiences by giving your developers real-time insights into app health. Keep your app stable and fast using end-to-end observability capabilities tailor-made for front-end web and mobile experiences. With over 30 integrations, BugSnag's full-stack monitoring works with your favorite tools for fast issue resolution and easy team alignment.

Average Rating: 4.3/5.0

Total Reviews: 38

How Do G2 Users Rate BugSnag?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.2/10)
  • Ease of Admin: 8.8/10 (Category avg: 8.9/10)
  • Baseline: 6.7/10 (Category avg: 9.0/10)
  • Reporting: 6.7/10 (Category avg: 8.9/10)

Who Is the Company Behind BugSnag?

  • Seller: SmartBear
  • HQ Location: Somerville, MA
  • Twitter: @smartbear
    16,468 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    923 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Financial Services
  • Company Size: 45% Small, 37% Medium

What Do G2 Reviewers Say About BugSnag?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of BugSnag, as its clean dashboard simplifies debugging and tracking errors.
  • Users value the real-time error tracking of BugSnag, facilitating quicker debugging through detailed error reports.
  • Users value the issue detection capabilities of BugSnag, facilitating faster debugging with detailed error reports and data.
  • Users appreciate the customizable dashboard of BugSnag, enjoying its clarity and meaningful metrics for efficient debugging.
  • Users appreciate the clean and insightful dashboard of BugSnag, enhancing speed and efficiency in debugging efforts.
Cons
  • Users experience inconsistent issue grouping in BugSnag, along with the lack of session recording feature.
  • Users note the limited features of BugSnag, particularly the absence of session recording and more settings options.
  • Users find the cluttered interface challenging, especially when navigating numerous error groups and issues.
  • Users find BugSnag to be a bit expensive and overly technical, which can hinder user experience.
  • Users find the dashboard cluttered and navigation less intuitive when managing multiple error groups in BugSnag.

What Are Recent G2 Reviews of BugSnag?

What Are G2 Users Discussing About BugSnag?

DebugBear

DebugBear is a website monitoring tool that empowers your team to build faster websites that make your customers happy. We not only track high-level site speed and website quality metrics, but also provide powerful in-depth analysis that's actionable for developers. Combine scheduled synthetic tests with real-time visitor analytics on your website.

Average Rating: 4.5/5.0

Total Reviews: 3

Who Is the Company Behind DebugBear?

  • Seller: DebugBear Ltd
  • Year Founded: 2018
  • HQ Location: London, GB
  • Twitter: @DebugBear
    2,397 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Large, 33% Small

What Are Recent G2 Reviews of DebugBear?

What Are G2 Users Discussing About DebugBear?

HetrixTools

HetrixTools offers simple way to blacklist check and monitor your IPs or Domains and notice if any of them get blacklisted.

Average Rating: 2.8/5.0

Total Reviews: 3

Who Is the Company Behind HetrixTools?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of HetrixTools?

What Are G2 Users Discussing About HetrixTools?

NitroPack

NitroPack is the leading all-in-one site speed solution that optimises more than 190,000 websites globally. NitroPack combines all the features a website owner might need to speed up their site, pass Core Web Vitals, and increase conversions: - Advanced caching - Complete image optimisation stack - Code optimisation - Built-in global CDN - Font Optimisation - And more… Also, it requires no coding or tech skills to use. Every person can set it up and go from slow to fast site speed, and failed to passed Core Web Vitals in less than 5 minutes. NitroPack ensures you never have to worry about page speed ever again, as all optimisations are applied automatically. But if you want to fine-tune some of them, you can do it through the user-friendly dashboard. On top of that, our expert Support is there to help around the clock.

Average Rating: 4.9/5.0

Total Reviews: 4

How Do G2 Users Rate NitroPack?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.2/10)
  • Ease of Admin: 10.0/10 (Category avg: 8.9/10)
  • Baseline: 10.0/10 (Category avg: 9.0/10)
  • Reporting: 10.0/10 (Category avg: 8.9/10)

Who Is the Company Behind NitroPack?

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Do G2 Reviewers Say About NitroPack?

AI-generated summary from verified user reviews

Pros
  • Users experience significant page speed improvements with NitroPack, achieving results effortlessly with minimal clicks.
  • Users enjoy the huge page speed improvements from NitroPack, achieving results with minimal effort.
  • Users experience smoother performance with NitroPack, achieving significant page speed enhancements effortlessly.

What Are Recent G2 Reviews of NitroPack?

UptimeObserver

UptimeObserver is a powerful website monitoring and uptime monitoring solution designed for businesses that need reliable infrastructure monitoring and real-time alerting. With 30-second monitoring intervals, UptimeObserver delivers faster downtime detection than most website monitoring tools, helping DevOps teams and system administrators prevent revenue loss and maintain service level agreements. Our comprehensive monitoring platform tracks website uptime, SSL certificate expiration, DNS changes, server port availability, domain expiration dates, and API performance. This all-in-one uptime monitoring software eliminates the need for multiple monitoring tools, reducing complexity while improving incident response times. UptimeObserver excels at instant alerting through popular communication channels. Receive downtime alerts via Email, Slack, Telegram, Discord, Pushover, SMS through Free Mobile, or custom webhooks. With support for up to 500 webhooks, our monitoring solution integrates seamlessly with your existing DevOps workflows, automation tools, and incident management systems. Status page functionality helps maintain customer trust during outages. Create up to 10 branded status pages with custom domains, providing transparent real-time updates to stakeholders. This feature is essential for SaaS companies, hosting providers, and any business where uptime visibility builds customer confidence. UptimeObserver serves organizations of all sizes including startups, small businesses, mid-market companies, enterprises, nonprofits, and government agencies. Whether you're a freelance developer monitoring client websites or an enterprise DevOps team managing hundreds of endpoints, our scalable infrastructure monitoring platform grows with your needs. Monitor up to 500 monitors with customizable check intervals. Affordable pricing starts at just $6 per month, with a free tier available for getting started. All plans include comprehensive email and chat support, ensuring you receive help when downtime strikes. Founded in 2023, UptimeObserver combines speed, comprehensive monitoring capabilities, and developer-friendly features at competitive prices. Our customer-focused approach welcomes feedback and feature requests to continuously improve our website monitoring service. Get started in minutes and take control of your uptime monitoring today at uptimeobserver.com.

Average Rating: 4.8/5.0

Total Reviews: 3

How Do G2 Users Rate UptimeObserver?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.2/10)
  • Ease of Admin: 8.3/10 (Category avg: 8.9/10)
  • Baseline: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind UptimeObserver?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About UptimeObserver?

AI-generated summary from verified user reviews

Pros
  • Users highlight the responsive customer support of UptimeObserver, enhancing their overall experience and satisfaction.
  • Users find UptimeObserver's ease of use exceptional, appreciating its simple setup and responsive support team.
  • Users value the easy setup of UptimeObserver, making it straightforward to get started with uptime monitoring.
  • Users value the generous free plan of UptimeObserver, noting its easy setup and responsive support team.
Cons
  • Users have noted the limited features of UptimeObserver, with some functionalities still needing completion.

What Are Recent G2 Reviews of UptimeObserver?

BinaryCanary

BinaryCanary offers website uptime and server monitoring solutions.

Average Rating: 4.5/5.0

Total Reviews: 2

How Do G2 Users Rate BinaryCanary?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.2/10)
  • Ease of Admin: 10.0/10 (Category avg: 8.9/10)
  • Baseline: 8.3/10 (Category avg: 9.0/10)
  • Reporting: 7.5/10 (Category avg: 8.9/10)

Who Is the Company Behind BinaryCanary?

  • Seller: Binarycanary
  • Year Founded: 2008
  • HQ Location: Cincinnati, US
  • Twitter: @BinaryCanary
    62 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of BinaryCanary?

Cronitor

Cronitor is a web-based tracking application that monitors, alerts, and analyzes scheduled computer processes.

Average Rating: 4.3/5.0

Total Reviews: 2

How Do G2 Users Rate Cronitor?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.2/10)
  • Ease of Admin: 9.2/10 (Category avg: 8.9/10)
  • Baseline: 8.3/10 (Category avg: 9.0/10)
  • Reporting: 9.2/10 (Category avg: 8.9/10)

Who Is the Company Behind Cronitor?

  • Seller: Cronitor
  • HQ Location: San Francisco, US
  • Twitter: @cronitorio
    686 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Cronitor?

Domsignal Toolbox

Find out how much time take to load your site from multiple location across devices.

Average Rating: 4.3/5.0

Total Reviews: 2

Who Is the Company Behind Domsignal Toolbox?

  • Seller: Site Relic
  • Year Founded: 2015
  • HQ Location: London, England, United Kingdom
  • LinkedIn® Page: linkedin.com
    24 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Small, 50% Large

What Are Recent G2 Reviews of Domsignal Toolbox?

Tian Lin
TL
Researched and written by Tian Lin
Updated April 9, 2026