Best Free Website Monitoring Software of 2025

New Relic's Website Performance Monitoring offers digital leaders the tools they need to safeguard and improve their online revenue by ensuring peak website functionality. This intuitive, code-free solution delivers ongoing, automated surveillance that anticipates and notifies users of crucial problems such as outages and slow loading times, which can adversely affect conversion rates and customer satisfaction. By presenting actionable insights into vital metrics, including Core Web Vitals, it supports informed decision-making to enhance user experience, refine marketing strategies, and sustain a competitive advantage. New Relic's platform provides essential visibility to reduce revenue loss due to subpar website performance, boost marketing return on investment, and ensure that digital strategies align with overall business goals.

The ultimate uptime monitoring service. Get 50 monitors with 5-minute checks completely free. Set up in seconds and stay informed about your website’s health at all times. Website monitoring: Get instant alerts when your website goes down. Reliable and accurate monitoring helps you fix issues before they affect users and prevent revenue loss. SSL certificate monitoring: Avoid losing visitors due to expired SSL certificates. Get notified 30 days before expiration so you can renew in time. Ping and port monitoring: Check if your server is online or if your email service is running on port 465. Monitor any port you need with real-time alerts. Cron job monitoring: Track scheduled tasks with heartbeat monitoring. We verify if the request arrives on time, making sure server-side jobs and internet-connected devices are running properly. Status pages: Create up to 100 branded status pages, protect them with a password, and allow subscribers to receive updates. Stay informed with email, SMS, voice calls, push notifications, or integrations with Slack, Zapier, PagerDuty, Telegram, Discord, Microsoft Teams, Google Chat, and more. Maintenance windows: Pause monitoring when you schedule downtime to avoid unnecessary alerts

Uptrends is all about cloud-based website performance that keeps track of performance, uptime, and functionality of your websites and APIs. The 24/7 monitoring service that proactively test your website and monitor multi-step transactions. Let’s face it—the Internet is a fragile thing. Stuff breaks or slows every now and then. Uptrends lets you know when it does and what exactly happened. Feel free to try Uptrends for 30 days with our free trial!

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

FirstWave’s NMIS is a network management system that provides fault, performance, configuration management, performance graphs, and threshold alerts. Business rules allow for highly specific notification policies that can be used with multiple notification methods. FirstWave also enables partners, including some of the world’s largest telcos and managed service providers (MSPs), to protect their customers from cyber-attacks, while rapidly growing cybersecurity services revenues at scale. FirstWave provides a comprehensive end-to-end solution for network discovery, management, and cybersecurity for its partners globally.

Paessler PRTG is an all-inclusive monitoring solution with an intuitive, user-friendly interface powered by a cutting-edge monitoring engine. It optimizes connections and workloads, reduces operational costs, and prevents outages. It also saves time and controls service level agreements (SLAs). This solution includes specialized monitoring features such as flexible alerting, cluster failover, distributed monitoring, maps, dashboards, and in-depth reporting.

ManageEngine Applications Manager is an enterprise-ready tool built to monitor a company's complete application ecosystem. Our platform enables IT and DevOps teams to have access to all of their application stack's dependent components. Monitoring the performance of mission-critical online applications, web servers, databases, cloud services, middleware, ERP systems, communications components, and other systems is simplified with Applications Manager. It contains a range of capabilities that help to expedite the troubleshooting process and minimize MTTR. It's a great tool to resolve performance issues before they harm application end users. Applications Manager has a fully functional dashboard that can be customized to provide quick performance information. By setting alerts, the monitoring tool continually monitors the application stack for performance issues and notifies the appropriate staff without delay. Applications Manager helps transform performance data into meaningful insights by combining this with advanced machine learning.

KIT.DOMAINS is a platform that allows centralized domain management, tracking expiration dates, checking SSL certificate status, and receiving instant notifications about any issues. ➟ Comprehensive Dashboard: Essential metrics and domain monitoring in one place. ➟ Easy to Use: Add domains with just one click. No extra setup required. ➟ Instant Alerts: Receive notifications in real-time if you domain is down, or if there's a SSL issue. Key Features: ✓ Domain Expiration Checker ✓ SSL Expiration Checker ✓ Monitor domain health ✓ Importation by automatic or manual means ✓ You will receive notifications (emails, push, and webhooks) ✓ Domain Rating Tracking (Are you worried about your domain rating?) We will help you track it. ✓ Cost Optimization Report

With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS allows you to quickly find and solve problems. It scales them so that they can be derived either from on-premise, multi-cloud, or both. You now have the ability to use your entire IT stack and analytics to solve any problem, even those that are difficult to find. You can control and manage any technology and application with more than 500 plugins, including SAP, Oracle, Lotus or Citrix, Jboss, VMware, AWS and SQL Server.

CloudQA is a powerful automation platform that uses no-code/low codes to speed up regression testing and continuous monitoring of web applications. You can type, click, and interact as normal with your site. Our recorder records all of your actions while you navigate your site. You don't have to worry about complex elements like dynamic elements or nested iFrames. Intelligent and intuitive script maintenance - Visual editor allows you to manage tests/monitoring scripts. It creates dynamic test models that are updated to reflect any changes in your application. Simple JavaScript and select variable data sets can automate complex steps. Automation accelerators don't require any infrastructure or setup and are completely free from lock-in. High volume, parallel, scalable and collaborative cloud testing. Support for legacy and the latest web technologies is available out of the box. Live execution of your tests is available. Share summary and detailed reports with screenshots. Integrate with your tech stack to set up custom notifications.

Bugfender serves as a remote logger, crash reporting tool, and platform for in-app user feedback specifically designed for application developers. It captures every action within the app, even in instances where it doesn’t crash, allowing developers to replicate and address issues more efficiently, thus enhancing customer support. With a strong emphasis on user privacy, Bugfender operates efficiently in terms of battery and network usage, maintaining logging capabilities even when the device is offline. This tool empowers developers to identify and rectify bugs before users become aware of them. By logging bugs across all devices and delivering the results in mere seconds, Bugfender allows for prompt fixes, ensuring that users never encounter an error message. This proactive approach helps in achieving 5-Star Ratings. Beyond merely tracking crashes and bugs, Bugfender gathers comprehensive data essential for creating a detailed understanding of user behavior, which is vital for obtaining those coveted five-star ratings. Additionally, it facilitates exceptional customer service by enabling developers to focus on individual users, thereby offering tailored support to enhance user satisfaction and loyalty. Ultimately, Bugfender transforms the way developers interact with their applications and users, fostering a more resilient and user-friendly product.

Watchman Tower provides robust monitoring solutions designed to keep your websites and servers running smoothly around the clock. The platform continuously checks uptime and response times, providing instant notifications across multiple channels, including Slack, email, SMS, and webhooks. With its lightweight Warden agent, Watchman Tower monitors server health by tracking CPU load, memory, disk space, and running processes. Additional features include SSL certificate monitoring and domain expiry alerts, helping prevent costly downtime. Users can share real-time uptime statuses and incident updates via a public status page with a custom domain. The platform integrates seamlessly with popular collaboration tools like Slack, Trello, and Discord to streamline incident response. Backed by over 50,000 websites monitored and millions of notifications sent, Watchman Tower boasts a 99.9% uptime guarantee. Its intuitive dashboard and simple pricing plans make it suitable for freelancers, teams, and agencies alike.

XPM is a commercial quality and enterprise level performance management/monitoring and traffic analysis solution. XPM is a high performance enterprise product based upon Linux that supports continuous operation from 7*24*365. It may not be appropriate for all users, but it is more suitable for enterprises who require higher IT service quality. XPM monitoring objects include: 1. Applications using HTTP protocol 2. 2. Databases (Oracle MySQL, MS-SQL Server, and MySQL); 3. URL Transaction 4. 4. Awards of XPM ITSS 2018 Innovation Award ITSS is a department of Ministry of Industry and Information Technology of China. Please be aware that: This is the downloadable version of XPM Standard, which can analyze approximately 1 Gbps traffic in real-time and only supports X86 server installation. Contact us by email if you require vProbe XPM to monitor virtual machines traffic or XPM H version over 1Gbps.

WPMissionControl offers comprehensive monitoring solutions for WordPress sites. Our services include uptime monitoring, SSL certificate oversight and website health analysis. We also check the integrity of core files, plugins, and themes. Premium users can receive real-time notifications via SMS, Slack and email. We also offer malware cleanup services. Display your website's security and performance with a Security Badge and a public Status Page. WPMissionControl will ensure that your WordPress site is secure, reliable and optimized.

TeamViewer, a popular remote support and access software, allows users to remotely connect and control computers or devices from anywhere on the planet. It is widely used to troubleshoot technical issues, manage IT services, and provide customer support. The software supports secure file sharing, real time collaboration, and remote desktop accessibility across multiple platforms, including Windows MacOS Linux iOS and Android. TeamViewer has a number of security features, including end-to-end encrypted connections and two-factor authentication. This ensures a safe and reliable remote connection. Individuals, IT professionals and large organisations use it to boost productivity, provide remote support and manage devices efficiently.

Sematext Cloud provides all-in-one observability solutions for modern software-based businesses. It provides key insights into both front-end and back-end performance. Sematext includes infrastructure, synthetic monitoring, transaction tracking, log management, and real user & synthetic monitoring. Sematext provides full-stack visibility for businesses by quickly and easily exposing key performance issues through a single Cloud solution or On-Premise.

Better Stack brings all your observability needs under one roof to help you build and ship more reliable software, faster. Handle on-call scheduling, get clear, actionable alerts, and resolve issues quickly – all from a single tool that covers incident response, uptime checks, status pages, log management, and infrastructure monitoring. Designed to scale with your team, Better Stack unifies your alerting and monitoring workflows into a clean, powerful interface that boosts visibility and shortens response times. Key capabilities include an OpenTelemetry-native Kubernetes collector powered by eBPF, instant alerting, and dashboards built for collaboration. Powered by ClickHouse, Better Stack enables rapid-fire queries and seamless ingestion of massive, high-cardinality datasets. It turns your logs into structured, searchable data, giving you the ability to query everything using SQL – just like a single, unified database. With 100+ integrations, it fits right into your existing workflow, no extra effort needed.

Designed specifically for WordPress, our tools enhance security, boost performance, and streamline marketing, all crafted by experts in the field. With our always-on security features, real-time backups capture every modification, while instant alerts for downtime ensure you can respond swiftly to any issues. Our malware scanning and one-click fixes empower you to stay ahead of potential threats, and we automatically filter out spam from comments and forms to maintain a clean site. Performance is optimized as pages load more quickly, utilizing our extensive global network to serve images and static files efficiently. By taking command of your site's speed and enhancing your SEO through Jetpack’s site accelerator, you can create a more engaging experience for your readers, potentially leading to increased page views and higher sales if you manage an online store. Furthermore, our code-free customization options, such as Jetpack Search, enable visitors to easily locate content, encouraging them to explore more products and prolong their visit, while seamlessly embedding rich media ensures a high-speed, ad-free environment. Ultimately, this combination of features not only enhances user engagement but also simplifies site management for WordPress users.

Remain vigilant and proactive in managing all Development and Operations incidents. Promptly inform the appropriate personnel, minimize response time, and prevent alert fatigue. Opsgenie serves as a contemporary incident management solution, guaranteeing that significant incidents are not overlooked and that the right actions are executed swiftly by the designated team members. The platform collects alerts from your monitoring tools and custom applications, organizing each notification by relevance and urgency. On-call schedules are established to ensure that the appropriate individuals are alerted through various communication methods, including phone calls, emails, SMS, and mobile push notifications. If an alert goes unacknowledged, Opsgenie automatically escalates the situation, ensuring that the incident receives the necessary focus and intervention. Take advantage of an instant free trial to explore its capabilities. By utilizing Opsgenie, teams can enhance their incident response strategy and foster a more efficient operational environment.

Netumo monitors your public infrastructure and notifies you as soon as something happens. It is able to reach you on one of the 6 different mediums that it supports i.e. Email, SMS, Twitter, Telegram, Slack, Cisco Webex, and or Microsoft Teams. This enables your team to be the first one to know that there is something wrong and they can take action. Netumo has built-in SSL and Domain expiry checks so that as soon as one of these is due for expiry, then your team is immediately notified such that they can be aware and take action. In such cases, it's not the first time that such things go unnoticed resulting in downtime. Netumo also supports monitoring of your APIs (RESTful services) just like normal sites making it easy without complex scripting which is sometimes required in other tools. Apart from uptime monitoring SEO based monitoring is also available where you can check specific elements of your site as well as audit your pages for improved SEO. Powerful Reports are also available so that you can track what went wrong at specific periods. In summary, Netumo can get you monitoring in minutes.

Curious about the loading speed of your website? Utilize GTmetrix to evaluate its performance, uncover the reasons behind any slowness, and identify areas for improvement. Our analysis will provide you with a concise report detailing your page's performance metrics. You will gain insights through: - Comprehensive PageSpeed and YSlow scores along with actionable recommendations. - In-depth page load information including time taken, total size, and the number of requests made. - Multiple analysis options to suit your needs. - A detailed waterfall chart, video playback, and access to your report history. Additionally, you can set up alerts to notify you when your website's performance dips below expectations. Each alert will be accompanied by a link to a comprehensive report to help you understand the issue. Furthermore, test your site’s performance on actual Android devices or choose from over 20 simulated device options, including popular models such as iPhones, iPads, Samsung Galaxy/Note, Google Nexus/Pixel phones, and many others. Monitoring your site's speed has never been this thorough or accessible!

Tired of juggling multiple tools for server and website monitoring? Meet Xitoring , the modern SaaS platform designed to streamline your infrastructure oversight. With just one CLI command, you can set up comprehensive monitoring for countless servers and websites in minutes—no complex configurations required. At its core, Xitoring uses Xitogent , a lightweight agent that collects critical performance data directly from your servers. This ensures real-time insights into system health, helping you identify potential issues before they become problems. By automating routine tasks, Xitoring saves you time and effort, allowing you to focus on innovation. Our global network of probing nodes keeps your systems under constant surveillance. From network outages to resource overloads, we detect anomalies instantly and notify the right person via customizable alerts. This proactive approach minimizes downtime, enhances reliability, and boosts customer satisfaction.

IT performance monitoring does not just focus on monitoring CPU, memory, and network resources. eG Enterprise makes the user experience the center of your IT management and monitoring strategy. eG Enterprise allows you to measure the digital experience of your users and get deep visibility into the performance of the entire application delivery chain -- from code to user experiences to data center to cloud -- all from a single pane. You can also correlate performance across domains to pinpoint the root cause of problems proactively. eG Enterprise's machine learning and analytics capabilities enable IT teams to make smart decisions about right-sizing and optimizing for future growth. The result is happier users, increased productivity, improved IT efficiency, and tangible business ROI. eG Enterprise can be installed on-premise or as a SaaS service. Get a free trial of eG Enterprise today.

Checkmk is an IT monitoring system that allows system administrators, IT managers and DevOps teams, to quickly identify and resolve issues across their entire IT infrastructure (servers and applications, networks, storage and databases, containers, etc. Checkmk is used daily by more than 2,000 commercial customers worldwide and many other open-source users. Key product features * Service state monitoring with nearly 2,000 checks 'outside the box' * Event-based and log-based monitoring * Metrics, dynamic Graphing, and Long-Term Storage * Comprehensive reporting incl. Accessibility and SLAs * Flexible notifications and automated alert handling * Monitoring business processes and complex systems * Software and hardware inventory * Graphical, rule-based configuration and automated service discovery These are the top use cases * Server Monitoring * Network Monitoring * Application Monitoring * Database Monitoring * Storage Monitoring * Cloud Monitoring * Container Monitoring

Simple configuration interface for Nagios or Naemon. Monitoring solution for corporations and SME Monitor and manage all your servers, applications, and systems in one place, from large data centers to critical IT service providers. openITCOCKPIT provides transparency and comprehensive monitoring of your entire IT environment. Its modular design allows for reporting, event correlation, and clustering capabilities all within an intuitive web interface. Experienced administrators can save time by using the service templates and host templates. This will allow them to spend more time on other areas. It is easy to connect external systems using the REST API. OpenITCOCKPIT eliminates the traditional division between configuration and monitoring. After exporting the configuration, users can instantly see the status of monitored hosts and services in Naemon/Nagios and edit them.