Alternatives to Visual Sentinel
Compare Visual Sentinel alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Visual Sentinel in 2026. Compare features, ratings, user reviews, pricing, and more from Visual Sentinel competitors and alternatives in order to make an informed decision for your business.
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UptimeRobot
UptimeRobot
UptimeRobot is a website monitoring service with a forever free plan that lets you register with just an email and monitor up to 50 websites, servers, or keywords with 5-minute intervals. Setup takes only a few clicks. For faster checks and advanced features, paid plans offer 1-minute or 30-second intervals, along with SSL certificate, domain expiry, and heartbeat (cron job) monitoring. You can also create up to 100 status pages, customize them to match your brand, protect them with a password, and allow subscribers to receive updates. Get notified instantly via email, SMS, voice calls, or integrations with Slack, Zapier, PagerDuty, Splunk On-Call, Telegram, Webhooks, Discord, Mattermost, Pushbullet, Microsoft Teams, Google Chat, Pushover, and more. Mobile push notifications are available through the iOS and Android apps. Other features include maintenance windows, incident tracking with root cause analysis, tags, comments, and filters. Share account with other team members. -
2
PagerDuty
PagerDuty
PagerDuty, Inc. (NYSE:PD) is a leader in digital operations management. In an always-on world, organizations of all sizes trust PagerDuty to help them deliver a perfect digital experience to their customers, every time. Teams use PagerDuty to identify issues and opportunities in real time and bring together the right people to fix problems faster and prevent them in the future. PagerDuty's ecosystem of over 350+ integrations, including Slack, Zoom, ServiceNow, AWS, Microsoft Teams, Salesforce, and more, enable teams to centralize their technology stack, get a holistic view of their operations, and optimize processes within their toolsets. -
3
upsonar.io
upsonar.io
Most uptime monitors only check if your server responds. upsonar goes further — it loads your page and discovers every external dependency: CDN-hosted files, third-party scripts, web fonts, and API endpoints. If any of them fail, you get alerted before your users notice. Availability checks run from multiple global regions simultaneously, so regional CDN failures and localized outages don't go undetected. Beyond uptime, upsonar monitors SSL certificates approaching expiration, tracks domain expiry dates to prevent renewal failures, and detects DNS record changes that could indicate unauthorized modifications. All five monitoring types work together in one dashboard. Notifications reach you through email, Telegram, or webhooks compatible with Slack, Discord, and PagerDuty. Get started free with 3 websites — all features included, no credit card needed.Starting Price: €10/month -
4
OpsDash
RapidLoop
OpsDash is fast to set up and easy to use. Get started in minutes with our zero-dependency agent and dashboards pre-configured to include key metrics for server, service and database monitoring. Zero-dependency, single-binary agent-based monitoring of Linux servers. Powered by Golang. Monitor your app metrics without setting up a separate system! Use StatsD and Graphite interfaces to push metrics into OpsDash. Set critical and warning alert thresholds. Notify your team via e-mail, HipChat, Slack, PagerDuty, OpsGenie, VictorOps and Webhooks. Monitor your servers, services, databases, and application metrics with OpsDash. No need to set up multiple systems. See the dashboards and metrics graphs that are important to you all in one place. Get going fast with our expertly designed, pre-configured dashboards. No need to sift through never-ending metrics lists, we’ve done the work for you.Starting Price: $5.00/month -
5
Healthchecks.io
Healthchecks.io
Healthchecks.io is a simple and effective cron job monitoring tool that alerts users when their scheduled tasks, such as backups or reports, fail to run on time. Users can generate a unique ping URL for each background job, and the platform sends notifications when jobs do not ping within the configured timeframe. It supports 20 free cron job monitors and features an easy-to-use dashboard where users can name, tag, and organize their tasks. With configurable period and grace time settings, users can track tasks across various states, such as "up," "late," or "down," based on the timing of pings. Healthchecks.io also supports cron expressions, logs event history, and offers status badges for public display. Notifications are available through multiple integrations, including email, webhooks, Slack, and Discord, as well as incident management tools like PagerDuty and Opsgenie. The service is ideal for monitoring cron jobs, server processes, database backups, SSL renewals, and more.Starting Price: $5 per month -
6
MeerkatWatch
MeerkatWatch
MeerkatWatch is a powerful SaaS platform uptime monitoring system that seamlessly tracks downtime and errors of applications such as Websites and APIs. Easy and accurately monitor website availability with 24/7 real time notifications by email, SMS, and voice call, or integrate with third party applications such as PagerDuty, Jira, Telegram and others to centralize alerting. We provide a clean and friendly interface that allows you to detect website changes such as keywords, phrases, code, or images, using first class tracking tools. Get up to 30 second interval checks to effectively monitor the availability of your sites. Provide transparency to your users by communicating real time incidents with a Status Page. FREE 14-days trial, with no-commitment.Starting Price: $16/month -
7
WebOrion Monitor
cloudsineAI
WebOrion Monitor is a GenAI-powered web monitoring tool designed to proactively detect and respond to unauthorized changes on your website. It offers comprehensive web detection capabilities, including defacement detection, content change detection, HTML change tracking, and payment page monitoring to prevent card-skimming attacks. It provides near real-time alerts for web defacements and other security threats, utilizing a GenAI triage and advanced engines to swiftly identify malicious code, unauthorized changes, and other vulnerabilities. Alerts are categorized by severity to help you focus on critical threats. WebOrion Monitor features an agentless architecture that supports most website types and allows easy configuration through a self-service portal. In case of defacement, the WebOrion Restorer creates a secure replica of your website, ensuring continuous availability and security. -
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Alertra
Alertra
We check your servers and routers continuously, ensuring that you are the first to know when an outage or slowdown occurs. Detect hard connection failures, equipment lockups, and operating system failures within seconds. Every few seconds we request a response from your server. We conduct a rigorous protocol test at your preferred monitoring interval. If one of our stations detects a problem, we check again from two more locations. If you’re down, we notify you by call, text, email or 3rd party integration. You can connect your Alertra account with other 3rd party applications like Slack, PagerDuty, Pushover and OpsGenie to centralize event logging and alerting. That way you can intelligently notify the right person with the right communication tool to quickly address a specific downtime situation.Starting Price: $10.00/month/user -
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WebGazer
WebGazer
Uptime monitoring, cron job monitoring and eye candy hosted status pages in a single tool for your business. Everything you need to keep your business running without interruption. WebGazer enables you to monitor websites and REST API endpoints. It checks the service's status by sending an HTTP request with a configurable frequency and sends a notification immediately if an issue is detected. In order to prevent alert fatigue, WebGazer does additional checks when an incident is detected and fires the notification only if the incident is verified by these additional checks. Get notified instantly via e-mail, webhook, PagerDuty, Slack, SMS and phone calls when an incident occurs. Check services' status as frequently as every 60 seconds! Too much? You can set it as low as 24 hours. Poor performance can be an indicator of a forthcoming disaster. Catch the performance issues before they turn into incidents.Starting Price: $5.00/month -
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DeepWebMonitor
DeepWebMonitor
Monitor website pages for changes behind login, web forms and inside web apps. Forms, multi-step sequences, SPA and full JavaScript rendering are supported. We open websites with real browser, click on links, submit forms and perform other required actions to get to the page you need and monitor it for changes. When selected page content changes we notify you.Starting Price: Free -
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OnlineOrNot
OnlineOrNot
We monitor your websites, APIs, cron jobs, and scheduled tasks. Your team gets immediate alerts via email, SMS, Slack, PagerDuty, Incident.io, and more. You don't have to be an engineer to set it up. Simple and effective monitoring that lets you sleep a bit better at night. Check as often as every 30 seconds, and catch the issues that take your website down for less than a minute. You can configure the HTTP method, headers, and body for each check. OnlineOrNot runs every check at least twice before sending an alert, with options for even more. OnlineOrNot will check your SSL certificates for expiration and other issues, and alert you if there's a problem. You can choose to run uptime checks from one region, or all of them. Your customers rely on your products and services. Let them know your real-time status with an automatically updating status page. Add your customers as subscribers to your status page, and send consistent incident updates via email.Starting Price: $20 per month -
12
Fluxguard
Fox and Geese
Fluxguard provides cloud-based website change monitoring. Locate errors, defacement, or other business-critical website changes, even on complex web apps or multi-page, multi-step sequences. Filter irrelevant changes. Create simple rules to alert business users and IT staff to web page changes that require investigation. Or delegate the analysis to one of our Solution Architects who will pre-screen results, optimize monitoring, and customize a change report. We utilize Natural Language Processing to simplify monitoring. This allows variation detection of a document’s extracted features, such as people, products, organizations, and so on. These insights can be leveraged to surface compelling dashboards and unique interrelationship analyses. Change summaries will be dispatched at once for staff remediation, analysis, or investigation. Receive detailed reports as soon as changes are detected.Starting Price: $25.00/month -
13
Opsgenie
Atlassian
Stay aware and in control of all Dev and Ops incidents. Notify the right people, reduce response time, and avoid alert fatigue. Opsgenie is a modern incident management platform that ensures critical incidents are never missed, and actions are taken by the right people in the shortest possible time. Opsgenie receives alerts from your monitoring systems and custom applications and categorizes each alert based on importance and timing. On-call schedules ensure the right people are notified through multiple communication channels including voice calls, email, SMS, and push messages on mobile devices. If an alert is not acknowledged, Opsgenie automatically escalates it, ensuring the incident gets the needed attention. Sign up for an instant free trial.Starting Price: $9 per user per month -
14
ScreenshotRender
Mth software LLC
ScreenshotRender captures reliable, pixel-perfect screenshots of any website through a simple API, including modern pages that rely on JavaScript, Cloudflare, or cookie banners. It is built for developers and teams who need fast visual capture for previews, automation, monitoring, QA, and AI workflows, without having to manage browser rendering themselves.Starting Price: $14 -
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Pinguzo
Pinguzo
Downtime can happen on your servers and websites. Get notified instantly to take corrective steps. More than 800 users are already using Pinguzo to monitor servers and their websites. Join for free and check your server's health and websites uptime, availability, and performance. Monitor your websites uptime, load time, average response times, etc. Install the Pinguzo agent and get detailed server information and graphs. We can send alerts over e-mail, SMS, PagerDuty, Pushbullet, Slack, HipChat, web-hooks, etc. You can set various parameters like if the Load Time is high for X minutes alert me after every Y minutes. View detailed uptime, downtime reports and graphs of your response times. For servers, you can view detailed information of your CPU, RAM, disk, network usage, etc. We verify the downtime from multiple locations. Pinguzo has been tested on CentOS, Debian, Ubuntu, Fedora, Scientific Linux, RHEL, openSUSE, Slackware, Gentoo, Archlinux. -
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LoadFocus
LoadFocus
All-In-One cloud testing platform for load testing and performance testing, website speed testing, website UI testing, mobile applications and API endpoints. Easy upload and run JMeter tests from multiple cloud locations with thousands of users. Inspect real-time performance metrics for your Website and APIs with Apache JMeter from the cloud. Monitor changes over time and get advice on how to reduce page load times. We run your tests from cloud instances at scheduled times and notify you if something goes wrong. Load your websites and web pages in mobile emulators and inspect screenshots to find potential rendering issues, invalid HTML, missing images, wrong CSS. Schedule runs and inspect rendered images on all devices in just seconds. Emulate your site across different screen sizes and resolutions. Generate screenshots of two websites in just seconds and compare the generated screenshots by a threshold to check differences.Starting Price: $24 per month -
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Do Status
Rediim
Cloud Services Monitoring. Create a personalized dashboard of all services you rely on. Be alerted when they encounter issues. Keep on top of services you depend on with our unified service Unified Dashboard. Subscribe to services you rely on and view them on a dashboard showing its latest status. Use our fullscreen feature to view the dashboard on a large screen or TV for constant view of your dependencies. Unified Alerts. Receive alerts on Email or Slack when services encounter issues. With other platforms like PagerDuty, Webhooks, Microsoft Teams coming soon. Do Status monitors 100s of cloud services for issues. We actively monitor statuses published by popular cloud services and provide all statuses on to a unified dashboard. Do Status also alerts you when services encounter issues. Create a personal dashboard for a quick view to all your dependencies in one place. Get alerts when your dependencies encounter issues. -
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exit1.dev
exit1.dev
exit1.dev is real-time uptime monitoring for websites, APIs, and infrastructure, built around a live dashboard. Probe results stream from our regional servers straight into your browser over WebSockets, so the chart and raw probe table update the moment each check finishes, with per stage timing for DNS, connect, TLS, and first byte. No refresh, no polling. Checks run from multiple regions across HTTP, TCP, UDP, ICMP, WebSocket, DNS, and heartbeat monitors. It also tracks SSL certificate and domain expiry, validates response bodies with status codes, JSONPath, and text, and alerts through email, SMS, Slack, Discord, Teams, or webhooks. exit1.dev ships an MCP server too, so AI assistants can create and query your monitors directly. You also get public status pages, status badges, and a REST API. The free plan includes 10 monitors with no credit card.Starting Price: $7/month -
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Hexowatch
Hexact
Hexowatch is your AI sidekick to monitor any website for visuals, content, source code, technology, availability or price changes. Access archived snapshots, get change alerts and extract data from any website in minutes. Manually checking multiple websites every day is time-consuming, repetitive and tedious. Hexowatch works 24/7 to help spot trends, spy on your competitors, visually check your website, keep an archive of every change and turn any website into your own private data source accessing changes as a downloadable csv file, google sheets or via Zapier. Monitor any website and get started in minutes - no software, proxies or programing required. Monitor web pages for any visual changes. Select a part of the screen or the whole page. Monitor specific HTML elements or the content of any field for changes. Monitor web pages for the presence or absence of specific keywords. Monitor changes to the tech stack or 3rd party scripts used on the web page.Starting Price: $14.99 per month -
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ChangeTower
ChangeTower
Monitor website changes, get alerts, archive full history. ChangeTower is a powerful website change detection and archiving platform. Set custom alert criteria, monitor and track website changes, get notified. Choose a URL to monitor for web page changes or set for archival. Our engines will crawl and capture a full-page visual screenshot, text-based content snapshot, and source code. Our powerful change monitoring network tracks changes to websites over time. We notify you when we detect a change matching your settings and record and archive a snapshot of your page automatically. Select a part of the page to monitor for visual changes, or choose to monitor for keywords, sentences, code updates, images and more. Create advanced sets of criteria to monitor for. You decide what element(s) of a web page to monitor, and when to send you change alerts.Starting Price: $299 per month -
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PageWatch
PageWatch
Track updates of your entire site. Catch website issues before your users do. Find visual bugs on every page. Studies show up to 85% of visitors are more likely to leave after seeing errors on your site. See how new changes affect the rest of your site and catch any unexpected side effects before it becomes a problem. PageWatch analyzes your website using Lighthouse to identify slow pages that might hurt your conversions. PageWatch is a zero config tool for front-end testing. It allows you to test any site for performance issues, broken layouts, spelling mistakes, broken links and more. You can run PageWatch as part of your continuous integration process. On every pull request or deploy you'll be able to test your site and catch any issues before it becomes an issue. Our Netlify build plugin can run PageWatch audits automatically from pull request previews or production builds.Starting Price: $29 per month -
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Status.io
Status.io
A platform designed for transparency. Keep your users in the loop during outages and maintenances. We take much pride in our infrastructure. The systems powering Status.io span across multiple regions and providers. Match your brand using simple design tools. Or go all out and bring your own code. Full support for complex distributed systems and multi-tenant infrastructure. We're always building and shipping. Expect constant improvements. Every status page comes with a unique API method for API consumers to retrieve the current status. Integrates with Librato, New Relic, OpsGenie, PagerDuty, Pingdom, Pingometer, Twitter and Uptime Robot.Starting Price: $79 per month -
23
HookWatch
HookWatch
HookWatch is an automated monitoring platform designed to track webhooks, cron jobs, and AI agent tool calls from a single dashboard. It provides real-time visibility into events, success rates, failures, and latency metrics to prevent silent infrastructure issues. Developers can inspect full payloads, debug delivery errors, and replay missed webhook events with one click. The platform includes cron monitoring with human-readable schedules, execution logs, and automatic retry mechanisms. Its MCP Proxy feature enables full request and response logging for AI agent tool calls without requiring code changes. HookWatch offers smart alerts through email, Slack, Discord, and PagerDuty to keep teams informed. Built for indie hackers and small teams, it delivers unified observability with a developer-friendly CLI and cloud-optional setup.Starting Price: $12/month -
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Pulsetic
Pulsetic
Pulsetic is an uptime and website monitoring platform for businesses, developers, ecommerce teams, and agencies that need fast outage detection and clear incident communication. It monitors websites, APIs, IPs, SSL certificates, ping, ports, TCP services, keywords, cron jobs, and domains from up to 15 global locations to help localize outages and reduce false positives. Features include instant alerts via email, SMS, phone calls, Slack, Discord, Telegram, Microsoft Teams, Twilio, Zapier, webhooks, and API workflows, plus real-time dashboards, status badges, response-time insights, historical uptime logs, PDF and image reports, and long-term monitoring history. Pulsetic also includes public or private status pages, custom domains, branding, multilingual status updates, subscriber notifications, incident timelines, scheduled maintenance notices, custom email sender options, teammates, password protection, 2FA, and SSO.Starting Price: $9 per month -
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Pagescreen
Onvey
Manually checking multiple websites every day for signals to spot the latest trends is time-consuming, repetitive, tedious, and most likely inaccurate? Keep close tabs on your ever-changing industry by automating the monitoring of websites for visual activity. Get alerted on changes in content as they occur. Set custom alerting for each of your monitors per channel. Get notified by Email, Slack and Webhooks. Generate a large number of high-quality screenshots across desktop and mobile. Save and recover the visual evolution of the websites you follow. Group your monitors in collections for easy management and smart navigation. Never miss a change. Group your team members so everyone gets alerted when involved. Comment and discuss over screenshots. -
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Snapshot Archive
Snapshot Archive
SnapshotArchive is a website monitoring and screenshot archiving service. It automatically captures full-page screenshots of any website on a schedule you define — daily, weekly, or at custom intervals. Track visual changes over time, compare historical snapshots side by side, and get alerts when something changes unexpectedly. Useful for monitoring competitor websites, tracking your own site for regressions, archiving landing pages for compliance, and keeping a visual record of web content. All screenshots are stored securely and accessible through a simple dashboard. -
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Monitor.us
Monitor.us
Monitor.Us is a free, cloud-based IT systems monitoring service that provides comprehensive visibility into your website, server, network, and application performance. Its all-in-one dashboard allows you to monitor website uptime and response times, server health, network performance, and custom metrics from anywhere, facilitating quick identification and resolution of issues affecting your online presence. The platform offers features such as full-page load monitoring, which assesses how long it takes to load a complete HTML page in real browsers, and mobile monitoring, enabling you to stay informed on the go with alerts sent to your Android and iOS devices, as well as via text and email. Monitor.Us supports various protocols, including HTTP, HTTPS, PING, DNS, SMTP, POP3, IMAP, TCP, UDP, and ICMP, ensuring comprehensive monitoring capabilities. It provides instant failure alerts through email, instant messaging, SMS, or live voice, and offers detailed reporting.Starting Price: Free -
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IncidentHub
IncidentHub
IncidentHub monitors status pages of hundreds of third-party cloud and SaaS services, providing a centralized tool for vendor outage alerts and maintenance reminders in one place. It allows users to view active incidents at a glance on a single aggregated status page and drill down into details for debugging. The service helps reduce alert fatigue by enabling users to fine-tune notifications, selecting specific components to monitor and adjusting alert frequency based on service criticality. IncidentHub integrates with common tools such as Email, Discord, Slack, and PagerDuty, and supports custom webhooks for alerts. It emphasizes ease of use, with setup typically completed in under 2 minutes. IncidentHub also offers a customizable public status page. Examples of services it monitors include Amazon Web Services, GitHub, Google Cloud Platform, Slack, and Stripe,Starting Price: $19/month -
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Runscope
Runscope
An API Monitoring (Runscope) API test is a group of one or more HTTP requests executed sequentially to evaluate the uptime, performance and correctness of an API. For each step in the test, you can define Assertions to validate response data and Variables to extract data to be used in subsequent requests. A test Passes if all the assertions pass. A test Fails if any assertion fails, or another error is encountered, such as a network connection problem. Your customers shouldn’t be the ones telling you about downtime and breakages. Runscope supports the notification tools you already use, like PagerDuty, Slack, HipChat, email, webhooks and more. Proactively monitor service performance to quickly catch and debug API problems fast. Stay ahead of intermittent failures before they become major issues with the API Dashboard and daily API Performance Report. Verify that the structure and content of your API calls meets your expectations. Powerful and flexible assertions give you total control. -
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Server Check
FearWorks Media Ltd.
The Server Check Monitoring System continually monitors your websites and other internet-based services (Ping, SMTP, IMAP, FTP, etc.) and makes sure you're the first to know when there's an outage. Don't lose any more visitors to downtime. Our FREE 10-monitor version of Server Check lets you get started with monitoring in less than five minutes completely free! Get alerted as soon as something stops working: visual alerts, audible alarms, emails and SMS texts to as many admins as you need. Server Check makes sure you know about it so you can fix it! Quick setup of all common protocols, including HTTP & HTTPS, Ping, FTP, SMTP, POP3, IMAP, TCP, MySQL. Monitor them all and stay ahead of any long outages that might lose customers! View statistics for each monitor, response time graphs, outage length reports, web-based stats and uptime pages, and keep track of uptime and downtime over the last 12 months.Starting Price: Free -
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Chronosphere
Chronosphere
Purpose built for cloud-native’s unique monitoring challenges. Built from day one to handle the outsized volume of monitoring data produced by cloud-native applications. Offered as a single centralized service for business owners, application developers and infrastructure engineers to debug issues throughout the stack. Tailored for each use case from sub-second data for continuous deployments to one hour data for capacity planning. One-click deployment with support for Prometheus and StatsD ingestion protocols. Storage and index for both Prometheus and Graphite data types in the same solution. Embedded Grafana compatible dashboards with full support for PromQL and Graphite. Dependable alerting engine with integration for PagerDuty, Slack, OpsGenie and webhooks. Ingest and query billions of metric data points per second. Trigger alerts, pull up dashboards and detect issues within a second. Keep three consistent copies of your data across failure domains. -
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Logz.io
Logz.io
We know engineers love open source. So we supercharged the best open source monitoring tools — including ELK, Prometheus, and Jaeger, and unified them on a scalable SaaS platform. Collect and analyze your logs, metrics, and traces on one unified platform for end-to-end monitoring. Visualize your data on easy-to-use and customizable monitoring dashboards. Logz.io’s human-coached AI/ML automatically uncovers errors and exceptions in your logs. Quickly respond to new events with alerting to Slack, PagerDuty, Gmail, and other endpoints. Centralize your metrics at any scale on Prometheus-as-a-service. Unified with logs and traces. Add just three lines of code to your Prometheus config files to begin forwarding your metrics to Logz.io for storage and analysis. Quickly respond to new events by alerting Slack, PagerDuty, Gmail, and other endpoints. Logz.io’s human-coached AI/ML automatically uncovers errors and exceptions in your logs.Starting Price: $89 per month -
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StatusDrift
ApptlySoft
StatusDrift is an uptime monitoring platform that watches your websites, APIs and infrastructure around the clock and alerts you the instant something drifts. Set up monitors in seconds with support for HTTP, HTTPS, ping, TCP port, SSL certificate expiry and keyword checks, all running from multiple regions so you can distinguish a real outage from a local blip. When a problem is detected, StatusDrift opens an incident automatically and gives you a full timeline - which regions were affected, how response times changed, and how long the issue lasted. You can acknowledge, investigate and resolve incidents right from your phone. Plan maintenance windows ahead of time so alerts stay quiet and your team knows exactly what's happening. The dashboard rolls up everything into a single view: monitors up, down, warning, paused or with expiring certificates, plus your latest incidents.Starting Price: $9/month -
34
Statlix
Statlix
The Simplest Websites Monitoring with built-in Status Pages. The Next Generation Of Distributed Monitoring System with instant alerts to Slack and Zapier that helps to keep your infrastructure Highly Available. Expect the unexpected with Statlix. Statlix helps you take a more scientific and measured approach to website availability: Monitor website uptime. You can quickly configure uptime monitoring systems for all selected URLs you manage. Check status real-time. View daily uptime statistics that provide more accurate snapshots of website performance. Ensure availability. Statlix has helped our clients monitor and maximize uptime affordably and reduce outages and unavailability! Alert to status changes. Alert them to scheduled maintenance and of progress with fixes by configuring your own customized status pages. Customers can sign up to receive status updates. Receive quality reports Receive notifications when problems arise by email, SMS, RSS, custom WebHooks, Slack, etc. -
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AppBeat
AppBeat
We help monitor your online services and catch issues & anomalies before they reach your end customers and become costly incidents! To detect outages, unexpected behavior & performance regressions. Minimize risk of losing customers, time, money & brand reputation. Our globally distributed monitoring probes check your publicly exposed web pages and web services via TCP or UDP protocols. We run millions of checks every day, 24/7. We have 6 years of experience in this field, our solution is mature, easy to use and very reliable. As an additional guarantee, we offer a service level agreement (SLA) option for our high-end monitoring plan(s). Measuring response times and uptime, checking for valid HTTP(S) response, ensuring page integrity with SHA-256 hash. Never forget to renew your web server certificate with our TLS / SSL monitoring. We will send periodic ping requests to your servers to check if they are alive. -
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SiteOps
SiteOps
SiteOps monitors your Joomla, WordPress and PrestaShop sites 24/7: downtime, SSL certificates, DNS, WHOIS/domain expiry, SEO score, security, backups and server metrics. Key features: - Uptime checks every 30 seconds from 8 worldwide locations - SSL/DNS/WHOIS monitoring with expiry alerts - Security: HTTP headers, Safe Browsing, brute-force detection - SEO score, Core Web Vitals, PageSpeed - Backups: Akeeba (Joomla) & UpdraftPlus (WordPress) - Server metrics: PHP, MySQL, load, TCP ports, IP reputation - Native agents for Joomla 4/5/6, WordPress, PrestaShop Alerts via Email, SMS, Slack, Telegram, Discord, Teams, Webhook. Multi-site dashboard for agencies. White-label available. GDPR-compliant, European hosting. Plans from €10 to €79/month — 10-day free trial.Starting Price: $0 -
37
MonitorWiz
Gugila
MonitorWiz is an application for tracking web page changes. The main focus and strength of MonitorWiz is accurate web page change detection. You can pinpoint specific page areas to monitor, big or small, and MonitorWiz will make sure no change goes undetected. CSS Selectors are text snippets used by web browsers to locate and decorate specific page elements. MonitorWiz uses CSS Selectors to pinpoint specific page areas to monitor. You can achieve 100% accurate web page change detection by setting up well defined CSS Selectors. -
38
Uptimon
Uptimon
Uptimon is a monitoring SaaS that tracks website and API availability 24/7, detecting outages within seconds and sending instant alerts. It performs HTTP(S) pings at customizable intervals (30 seconds to 60 minutes), checking response time, status codes, keyword presence, and SSL certificate validity. When a site goes down, it instantly notifies via email, Discord, Telegram, webhook, or SMS.The dashboard displays real-time status, last 30-day uptime percentage, average response times, and performance graphs. Technical stack includes Node.js/Go backend, Redis queue, horizontal scaling support, and time-series databases like TimescaleDB.Target audience ranges from freelancers to enterprises. Key differentiators include simple setup (3 clicks), fast detection time, and affordable pricing. Uses freemium model with paid tiers based on monitor count and check frequency. Growth features include shareable status badges, public status pages, and partner integrations with Vercel/Netlify.Starting Price: $9/month -
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InternetSeer
InternetSeer
Our monitoring systems remotely check your website from several geographic monitoring stations at selected intervals. If the monitoring system is unable to reach the site, an email, cell phone or pager alert is sent to notify you of the problem. Some of the key web site monitoring services are available. -
40
axe Monitor
Deque Systems
Perform enterprise-level accessibility audits and meet your compliance needs with advanced reporting, monitoring, and management of accessibility issues against industry standards or customized guidelines. Axe Monitor helps ensure your large website becomes accessible and remains accessible. Dynamically scan, monitor and report on the accessibility status of your site across business and development teams. Modern web applications driven by large content management systems require automated tools capable of handling unexpected page hierarchies and linking structures. Axe Monitor is designed to follow links dynamically, and allows for scripting of basic user flows to trigger event-driven content and bypass user authentication. Large websites are constantly changing and adding new content. Axe Monitor links content creators, designers, developers and project managers to ensure accessibility throughout the workflow. -
41
Oracle Cloud Infrastructure Notifications is a highly available, low-latency publish/subscribe (pub/sub) service that sends alerts and messages to Oracle Functions, email, and message delivery partners, including Slack and PagerDuty. The service integrates with Identity and Access Management for secure access, and delivers each message, even during traffic bursts. Send notifications when alarms are breached. Send messages from Monitoring and Events Service to email, Slack, PagerDuty, and HTTPs endpoints. Notify based on a variety of events, such as a new file in object storage or a newly provisioned compute instance. Use Notifications to trigger Functions that execute snippets of code. For example, automatically scale up an Autonomous Database instance, or change the shape of a compute instance. Administrators can control subscriptions through the console, SDK, and Notifications API.Starting Price: $0.02 per 1000 emails sent
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42
Watchman Tower
Watchman Tower
Watchman Tower is an all-in-one platform for real-time website monitoring, server monitoring, and status page management. Instantly detect downtime, SSL certificate issues, and domain status changes to ensure your digital assets are always online and secure. With seamless integrations to Slack, Email, SMS, and Webhooks, you’ll never miss a critical alert. Our intuitive dashboard provides advanced uptime graphs, performance analytics, response time tracking, and fully customizable public status pages. Designed for website owners, developers, IT teams, and businesses of all sizes, Watchman Tower scales with you — offering a powerful free plan and feature-rich premium options.Starting Price: $5.99/month -
43
Radar Website Monitor
Apical Soft
Users will abandon a slow website. According to an experiment by Zona Research, one site studied dropped in abandonment rate from 30% to 8% by improving download time per page by one second faster. Let website monitoring software report your website speed. Radar Website Monitor is a multithreaded website monitoring software that keeps a close and constant watch over your website. It can monitor different types of internet services, including HTTP, HTTPS, SMTP, POP3, FTP, DNS, Ping, Database and TCP. When your website is detected inaccessible, loads improperly or responds excessively slow, Radar Website Monitor will send an immediate notification to you. It can even run previously specified applications automatically! You define the interval of time that Radar Website Monitor provides you with real-time reports and charts, allowing you to easily understand and evaluate your website's performance.Starting Price: $99.95 one-time payment -
44
Onemon.io
Onemon.io
Onemon.io is an online tool for automatically monitoring websites and their all key aspects: domain, certificate, security and script errors. 1 minute tests interval from different locations. Email, push, chat (Teams, Slack, Discord) and SMS notifications. Tests are also regularly run in a real browser which means that not only a web server is tested, but the site with its all components: images, styles, fonts, scripts etc. No installation required - only a website's URL is needed to run start the monitoring.Starting Price: $7 per month -
45
RenderLog
RenderLog
RenderLog helps teams capture, test, and monitor web pages without maintaining their own Playwright infrastructure. Use it to create screenshots, export pages to PDF, Markdown or HTML, run no-code checks for pricing pages, signup flows, docs and UI states, and keep every result in one workspace. Each run can include outputs, metadata, assertions, visual baselines, history, and alerts, so teams can review what changed before users report it. -
46
CertPing
CertPing
CertPing is an AI-powered observability and security platform that helps organizations protect their online presence by continuously monitoring website uptime and response times, managing SSL/TLS certificates with automated issuance, rotation, and deployment, and detecting brand impersonation threats such as phishing, typosquatting, and look-alike domains. It consolidates uptime checks, SSL health analytics, incident communications via public status pages, and threat intelligence into a unified dashboard that displays real-time metrics, historical tracking, and alerts so teams can respond quickly to outages or security anomalies. CertPing’s brand defense capabilities proactively scan for unauthorized domain registrations and phishing attacks that could compromise user trust, and it incorporates workflows for trademark monitoring and assistance with legal filings through partners.Starting Price: $1.99 per month -
47
Odown
Odown
Odown is a website uptime monitoring tool that helps you maintain customer trust by tracking your website’s performance in real-time. Monitor uptime, availability, and speed, and receive instant alerts via email, Slack, Webhooks, SMS, Telegram, and Discord, so you can quickly address any issues. API & WEBSITE MONITORING Monitor your website and APIs to track uptime and response times across 17 global regions. Identify HTTP errors quickly through a user-friendly interface. PUBLIC STATUS PAGES Boost customer trust with real-time transparency. Easily set up a status page to share your website’s uptime status in less than a minute. INCIDENT MANAGEMENT Minimize the time spent on incident management, allowing you to focus on resolving issues quickly to keep your customers satisfied. SSL MONITORING Prevent lost visitors due to expired SSL certificates. Receive timely alerts before your SSL certificate expires, ensuring continuous security. -
48
StatusSight
Lifehack Labs
StatusSight is your all-in-one monitoring solution for outages and issues in the services you rely on. It aggregates the status of over 3,000 services, including APIs, cloud platforms, DevOps tools, SaaS, analytics, sales, marketing, finance, operations, IT, and more. With StatusSight, you can create personalized all-in-one status pages to monitor the status of these services and receive real-time alerts to Slack or email, keeping you ahead of any outages or issues. StatusSight helps you avoid the mess of subscribing to dozens of status pages and ensures you get consistent, relevant outage notifications. It provides a single view of your entire infrastructure, so you no longer need to track different alerts on different mediums. This saves you time, reduces noise, and ensures you never miss a critical outage alert. Whether you're using infrastructure services like GitHub or Cloudflare, APIs such as Auth0 or Twilio, or tools for marketing and sales like HubSpot, Salesforce & more. -
49
Domain Monitor
Domain Monitor
The fastest all-in-one domain & website monitoring tool. Keep your website, server and domain online with our complete monitoring solution, join our platform today. Stay online, drive increased revenue, and get notified ahead of domain and SSL expiration. We'll keep an eye on your website or server so that you don't have to. Learn more about how and why our domain & website monitoring service exists and how you can get started today! We'll monitor your website and domain so that you don't have to, receive instant downtime and expiration alerts on time, every time. Never miss your domain's expiry date ever again, keep track of all your domains, in one place. It's easy to forget when your domain is about to expire, track all of your domains in one place, for free. If your domain is currently on a black or spam list, then everything from sending emails to deliverability can be affected. Discover whether your domain's IP is currently blacklisted with our blacklist monitoring feature.Starting Price: $7.92 per month -
50
Trakr
FFW
Add one or more websites you’d like to test. Trakr will identify your most important pages and automatically begin monitoring them. Each time a change is deployed, Trakr will test those changes across up to four devices or breakpoints and will notify you if any visual defects are found when compared. Create a screenshot collection for your website. Trakr will take a screenshot for all URLs and device/breakpoints you have specified. You can use this screenshot collection to compare with others later when you create a new website release. Perform visual testing when you update your website to check for any defects. Trakr also works with your favorite DevOps/workflow tools to automate the visual testing process. Create and share comparison reports with your team. Your colleagues, your clients, and your stakeholders will all thank you.Starting Price: $59 per user per month