Alternatives to Sentinel by Rootstuff

Compare Sentinel by Rootstuff alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Sentinel by Rootstuff in 2026. Compare features, ratings, user reviews, pricing, and more from Sentinel by Rootstuff competitors and alternatives in order to make an informed decision for your business.

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    Overmonitor

    Overmonitor

    Unistellar Industries, LLC

    Overmonitor is a cloud-based infrastructure, website, and endpoint monitoring platform built for fast setup without enterprise complexity. Monitor websites, APIs, servers, processes, Windows services, event logs, performance counters, SNMP data, uptime, response time, DNS, SSL certificates, internal endpoints, and network health from one dashboard. The lightweight 2.1 MB agent runs as an idle process, requires no inbound firewall exceptions or open ports, and sends a secure heartbeat every minute. Configure monitoring quickly through the web interface and target checks by city-level geography. Maintenance windows suppress expected noise, while configurable alerts, push notifications, and audible dashboards keep the right people informed. Multi-location endpoint checks validate incidents, reduce false alarms, expose regional problems, and reveal how availability and responsiveness differ across target markets. Distributed Monitors expand Overmonitor’s network by allowing eligible servers to opt in and check up to 10 external endpoints. Checks add negligible data to the existing heartbeat, require no extra configuration or firewall changes, execute no remote web scripts, and store no monitored data on the server. If a participating server or network becomes unavailable, its checks are automatically reassigned. Participation also earns prorated invoice credits. Trend Analysis turns historical infrastructure metrics into proactive capacity planning. Choose from thousands of performance counters, including CPU utilization, available memory, and disk space, then assign minimum and maximum thresholds. Once enough data has been collected, Overmonitor applies linear regression to estimate when a metric may cross its limits. A configurable planning horizon controls when responsible team members are alerted, helping you rebalance workloads, tune resources, or scale capacity before performance becomes an outage or unbudgeted emergency. Trend Analysis is included with every server metric at no additional charge. Overmonitor also includes process rollups, embeddable performance graphs, endpoint health visibility, flexible retention, multiple users with roles, and à la carte pricing so you pay only for the monitoring you need. Detect outages, correlate website symptoms with server health, analyze performance, track availability, and improve end-user experience before small issues become downtime.
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    UptimeRobot

    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.
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  • 3
    Paessler PRTG

    Paessler PRTG

    Paessler GmbH

    Paessler PRTG is an all-inclusive monitoring software solution developed by Paessler. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine, PRTG optimizes connections and workloads as well as reduces operational costs by avoiding outages while saving time and controlling service level agreements (SLAs). The solution is packed with specialized monitoring features that include flexible alerting, cluster failover solution, distributed monitoring, in-depth reporting, maps and dashboards, and more. PRTG monitors your entire IT infrastructure. All important technologies are supported: • SNMP: ready-to-use and custom options • WMI and Windows Performance Counters • SSH: for Linux/Unix and macOS systems • Traffic analysis using flow protocols or packet sniffing • HTTP requests • REST APIs returning XML or JSON • Ping, SQL, and many more
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    SendQuick Cloud
    Do you still need to manage your systems after migrating to the Cloud? When using Cloud providers, companies need to ensure the infrastructure and services always remain online and working. What do companies in the cloud environment need? > Incident Notification & Avoid Alert Fatigue You need to manage the > Unknown into The Known SendQuick Cloud is a systems availability monitoring and notification management platform for the cloud. It works with public cloud services to monitor systems, applications, services and networks, and flags up issues to your staff on duty. SendQuick Cloud enables: - Active monitoring using Ping, Port and URL Checks - Sends immediate notifications on critical issues, providing you with visibility over your entire IT infrastructure health status. - Roster Management & Rule Configuration - User choice of Messengers: SMS, Facebook Messenger, Line, Telegram, MS Teams, Slack etc.
    Starting Price: $18 per user per month
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    PagerDuty

    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.
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    Pulsecima Pulse
    Pulsecima Pulse is a hosted uptime and response-time monitoring service for websites and HTTP endpoints. It checks URLs from Virginia, Ireland, and Singapore, and confirms an incident only when at least two fresh regions report a failure. This regional confirmation helps teams distinguish service outages from failures observed by a single monitor. Features include public status pages, maintenance windows, SSL-expiry and response-time alerts, uptime reports, and alert routing through email, Slack, webhooks, and PagerDuty; Slack and webhooks are available on Basic and Pro, while PagerDuty is available on Pro. Basic and Pro plans include heartbeat monitoring for cron jobs and scheduled tasks, using a unique ping URL to detect missed check-ins. The service is aimed at developers and teams responsible for websites, APIs, SaaS services, and scheduled jobs. A free plan covers up to three monitored URLs; paid plans are billed per active URL.
    Starting Price: $1.49/URL/month
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    Uptime Tracker

    Uptime Tracker

    Uptime Tracker

    Uptime Tracker monitors websites, APIs, servers and scheduled jobs around the clock, rechecking failures before sending alerts to help distinguish outages from brief network errors. It supports HTTP(S) and keyword checks, SSL certificates, TCP ports, DNS records, ping, domain expiry, authenticated API tests with JSON assertions, multi-step API workflows, gRPC, SMTP, IMAP and heartbeat monitoring for cron jobs and backups. Alerts can be routed through rules to email, SMS, Slack, Microsoft Teams, Discord, Telegram, Google Chat, PagerDuty, Pushover, ntfy, Gotify, Mattermost, Rocket.Chat and webhooks, with on-call schedules and escalation. The service includes incident timelines, maintenance windows, reports and hosted status pages on custom domains. Individuals, developers, SaaS teams, agencies, freelancers, online stores and small businesses can use it to monitor services and communicate availability. A free plan includes two monitors; paid plans start at $9 per month.
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    Visual Sentinel

    Visual Sentinel

    Visual Sentinel

    Visual Sentinel is a six-layer website monitoring platform for public websites, web applications, APIs, and client portfolios. It combines HTTP uptime, performance and Core Web Vitals, SSL certificate and domain expiry, DNS change detection, rendered browser screenshot comparisons, and critical content assertions. Visual Sentinel is designed to catch failures that ordinary ping monitors miss, including blank renders, missing CTAs, broken layouts, defacement, injected content, and unexpected page changes that still return 200 OK. Incident records keep the response, timeline, and visual evidence together. Teams can alert through email, Slack, Discord, Telegram, WhatsApp, Microsoft Teams, PagerDuty, Opsgenie, webhooks, and browser push according to plan. Additional features include server monitoring, API monitoring, status pages, client reports, Google and Cloudflare integrations, an Android companion, REST API, and MCP tools.
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    PageLantern

    PageLantern

    PageLantern

    PageLantern is website, API, and uptime monitoring software for small teams, agencies, SaaS operators, and website owners. Monitor HTTP/HTTPS endpoints, APIs, SSL certificates, domain expiration, DNS records, TCP services, heartbeat and cron jobs, and critical browser flows from one workspace. PageLantern records response times and availability, creates incidents automatically, routes alerts to team channels, and provides hosted public status pages. Multi-location checks help teams identify regional failures and slowdowns. The free plan includes 15 monitors, five-minute checks, 30 days of history, one status page, and one alert channel with no credit card required. Paid plans add faster checks, browser monitoring, longer history, additional users, reports, and more status pages.
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    Xitoring

    Xitoring

    Xitoring

    Xitoring is an all-in-one monitoring platform for servers, websites, and status pages. One command installs the Xitogent agent (curl on Linux, MSI on Windows), auto-discovering 30+ services: Nginx, Apache, IIS, MySQL, PostgreSQL, MongoDB, Redis, Docker, RabbitMQ, Kafka, and more. Monitor CPU, memory, disk I/O, network, and processes, plus uptime checks (HTTP(S), Ping, DNS, TCP, UDP, API, Mail, Heartbeat, Cron) at 1-minute intervals from 15+ global probing nodes. SSL monitoring included. Alerts via 20+ channels: email, SMS, phone call, WhatsApp, Telegram, Slack, Teams, PagerDuty, Opsgenie, webhooks, and more. Built-in AIOps answers plain-English questions about your metrics and incidents. The Xitoring MCP server lets Claude, Cursor, or any AI agent read metrics, ack alerts, and manage monitors. Plus white-label status pages, incident management, REST API, and iOS/Android apps. Free forever: 2 servers + 8 uptime checks. Paid from $4.99/mo, flat pricing, 30-day trial.
    Starting Price: $4.99 OR Lifetime free
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    RealUptime

    RealUptime

    RealUptime LLC

    RealUptime combines four hosted reliability tools in one account: Status for public status pages and incident updates; Monitor for external HTTP, TCP, DNS and heartbeat checks plus server monitoring; Errors for application error tracking; and Outages, a public directory of checks for widely used services. Monitoring checks run from multiple regions, with regional results visible so teams can distinguish location-specific failures. Monitor can collect server metrics through an agent, while alerts and incident workflows help teams respond to service issues. Errors groups application events into issues for investigation. The platform also provides a REST API, command-line interface, Terraform provider, GitHub Actions workflow and MCP server for developer workflows. Free plans are available for Status, Monitor and Errors, and public Outages checks can be viewed without an account; paid plans add usage capacity and features.
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    Pulsetic

    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.
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    UptimeMonk

    UptimeMonk

    UptimeMonk

    UptimeMonk is uptime monitoring and incident intelligence software for online services and scheduled jobs. Check HTTP/HTTPS endpoints, SSL/TLS certificates, domain expiry, DNS records, TCP ports, ping/ICMP, cron jobs, heartbeats, and browser page rendering. Multi-region verification confirms failures before incidents open. Probable-cause diagnostics, evidence timelines, latency data, and recovery tracking speed investigation. Map upstream and downstream dependencies, identify critical paths, correlate overlapping incidents, and review evidence-linked impact summaries. Signed GitHub and GitLab deployment webhooks add nearby releases to incident timelines without repository access. Publish branded public status pages with live component health, incident updates, maintenance notices, and availability history. UptimeMonk provides scheduled maintenance, configurable alerts, on-call escalation, email, chat and webhook integrations, team roles, audit history, SLA reports, and CSV exports.
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    WebGazer

    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.
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    upsonar.io

    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.
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    OnlineOrNot

    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
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    Oh Dear

    Oh Dear

    Oh Dear

    Oh Dear monitors the health of every website a team manages. Oh Dear checks uptime every minute from multiple locations and monitors SSL certificates, DNS records, domain expiration, scheduled tasks, broken links, mixed content, performance, Lighthouse, APIs, application health, ping, TCP ports, sitemaps, DNS blocklists and exposed ports. Oh Dear sends alerts through email, Slack, Microsoft Teams, PagerDuty, Opsgenie and webhooks. Oh Dear includes branded status pages, client-ready reports, unlimited users and every monitoring feature on every plan. Oh Dear also includes AI-powered checks and SSO. Mattias Geniar and Freek Van der Herten founded Oh Dear in Belgium in 2018. Oh Dear stores monitoring data in the EU and supports GDPR requirements. Oh Dear offers a 10-day trial with every feature and requires no payment information.
    Starting Price: $17 per month
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    Host-Tracker

    Host-Tracker

    Host-Tracker

    HostTracker is a 24/7 website monitoring service that helps businesses and webmasters track availability, performance and security from over 300 global locations. With 13 monitor types, you can check HTTP/S, ping, TCP ports, transactions, web content, APIs, page speed, databases, server resources, SSL and domain expiry, plus Web Risk and DNS blacklist status. Track response times and page load speeds, receive scheduled reports, and get alerts via email, SMS, voice call, Telegram, Slack, Viber, Discord, web push or webhooks. Alert delays, active hours and maintenance windows help prevent unnecessary notifications. HostTracker also provides public status pages, a REST API and an MCP server for instant checks through AI assistants and developer tools. The free plan includes 2 monitors. Paid plans start at $10/month, with a 30-day trial including 100 monitors at 1-minute checks - no credit card required.
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    FourSight

    FourSight

    TetraCore

    FourSight is multi-region uptime monitoring built to stop alert fatigue. Every check runs from four regions (US, Canada, Europe, Asia-Pacific) and a quorum-based consensus policy confirms an outage from more than one region before anyone is paged, so a single flaky vantage point never wakes you at 3 AM. Eight check types cover HTTP/uptime, keyword/content, SSL certificate expiry, DNS drift, domain expiry (RDAP), ping latency, TCP/UDP port checks and heartbeat monitoring for cron jobs and backups. Alerts go out by email, Slack, HMAC-signed webhooks and SMS, with escalation policies and maintenance windows to keep noise down. Public status pages are included on every tier (white-label with custom domains on Scale), plus incident management with timelines, multi-user organizations with roles, and uptime/latency history with regional breakdowns.
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    Healthchecks.io

    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.
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    Uptimon

    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.
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    Ping Clock

    Ping Clock

    StyleLine FZE

    Ping Clock monitors cron jobs, backups, scheduled tasks and background workers through heartbeat pings. Unlike uptime monitors that check services responding to requests, it can detect when a scheduled job stops running. Each job pings a unique URL when it runs, and missed pings trigger alerts. Set a period and grace time or a cron expression in any time zone. Start, success and fail pings show whether a job never ran, failed or hung, and the job can send its exit code. Email and Slack alerts are available on every plan, with Microsoft Teams, Discord and webhooks on Starter and higher. Pro adds run-duration tracking, log capture and an API. The Free plan includes 20 checks with no credit card required.
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    MeerkatWatch

    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.
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    Freshping

    Freshping

    Freshworks

    Everything you need for uptime monitoring. Monitor your website for free and get notified instantly when your website goes down. Ensure your website is available from anywhere in the world with monitoring from 10 global locations. Display your website uptime history to your customers with free public status pages. Monitor HTTP/HTTPS, ICMP Ping, TCP, UDP, Web socket or DNS. Whatever you’re building we’ve got you covered. Receive alerts wherever you are. Integrate Freshping with Freshdesk, Slack, Twilio, Skype, and Webhook to receive instant downtime notifications. Get weekly updates and measure your website's performance with metrics like Apdex score, Average response time, Individual Response Time & more. Showcase your website status right from your homepage. Display your website’s uptime history and current status of your website with Realtime Badges. Enjoy deeper control with String and Status code check. Don’t limit yourself to a single status code.
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    AppBeat

    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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    Server Check

    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.
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    Hyperspin

    Hyperspin

    Hyperspin

    Unless you are a robot, it is infeasible for you to keep checking your website to see if it is available. Leave this tedious job to our automated service, and enjoy peace of mind. We support ping, HTTP, HTTPS, FTP, SSH, SMTP, DNS, POP3, IMAP, MySQL, and any arbitrary services running on TCP/IP. No complicated software to install; all you need is a web browser. We monitor your websites and servers from a network of 54 worldwide monitoring stations. Knowledge is power, that's why we provide you all the information you need about the uptime and performance of your websites and servers in easy-to-read reports and graphs. Public report is also available. Be the first to know when your website or server is in trouble! We notify via email, SMS and push notification. You can define one-time and recurring maintenance windows to pause uptime checks. We will not send you downtime alerts on planned outages.
    Starting Price: $12 per month
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    Alertra

    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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    AlertKick

    AlertKick

    AlertKick

    AlertKick combines server security and uptime monitoring in one product. A lightweight eBPF agent for Linux detects intrusions, file changes, rootkits, and SSH activity (login alerts, failed-attempt auto-blocking, maintenance lock), with detections mapped to MITRE ATT&CK and AI triage that attaches a written verdict to each alert. External monitors check HTTP, TCP, and DNS from outside the network, with response-time thresholds, SSL certificate expiry, and domain expiry from live registry RDAP data. Heartbeat monitors catch silent cron and backup failures, and public status pages keep users informed. Alerts flow through escalation policies and on-call rosters to email, Slack, Telegram, WhatsApp, SMS, and phone calls. Server changes are recorded and attributed for compliance evidence, with PCI DSS and SOX reports on Business plans. Setup is a one-line install per server. The free plan includes 10 uptime monitors and heartbeats - no card, commercial use allowed.
    Starting Price: Free plan; paid from £39/month
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    BoxWatch

    BoxWatch

    BoxWatch

    BoxWatch is server monitoring that does the job of four tools at once: metrics, cron heartbeats, uptime checks, and process monitoring. One agent, one dashboard, one bill. Most teams stitch together Datadog (or similar) for metrics, Healthchecks.io for cron, UptimeRobot for HTTP checks, and a separate supervisor for processes. BoxWatch replaces all of that. Metrics: CPU, memory, disk, network, load, and uptime, collected by a small open-source bash agent installed with one curl command. Trend charts, side-by-side comparison views, and disk-full prediction that warns you days before a volume actually fills. Cron heartbeats: ping a URL when a job finishes, get alerted when the ping is late or missing. Four alert types with transition-based dedup so you never get spammed. Uptime checks: HTTP, TCP, and TLS-expiry probes executed by your own deployed BoxWatch agents.
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    ZnowPulse

    ZnowPulse

    ZnowSoft

    ZnowPulse is hosted website, API and server monitoring by ZnowSoft. Check HTTP/S endpoints, TCP ports, ICMP ping, DNS records, keywords and SSL expiry. Nexus Points group checks into one service-health signal. Manage incidents and planned maintenance, and route alerts to your team’s tools. Free includes unlimited monitors, five-minute checks, 30 days of history, one Nexus Point and one user, with no card or expiry. Pro Yearly is US$59.99 billed annually, with checks as often as ten seconds, public status pages, teammates, unlimited Nexus Points, CSV/PDF reports and S3-compatible backups. Check intervals are plan features, not uptime or detection guarantees. Explore the actual dashboard interface with prepared sample data at the product website.
    Starting Price: Free; Pro $59.99/year
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    exit1.dev

    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.
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    Larm

    Larm

    Larm

    Larm is an uptime monitoring platform that checks websites, APIs, and services from multiple global locations and only alerts you when multiple probes confirm a problem. This multi-location verification eliminates the false positives that plague most monitoring tools. Larm supports HTTP, TCP, DNS, SSL certificate, and heartbeat/cron monitoring. Every HTTP check captures a full request waterfall (DNS, TCP, TLS, TTFB, transfer), giving you the data you need to debug performance issues, not just know something is down. Status pages are included on every tier, including the free plan. Pages are rendered as static HTML and served from a CDN, so they stay up even when your infrastructure doesn't. Custom domains, email subscribers, automated incident updates, and component grouping are supported on paid plans. Alerts can be sent through 13+ channels.
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    StatusDrift

    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.
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    SiteOps

    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.
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    Oracle Cloud Infrastructure Notifications
    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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    Do Status
    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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    Pinguzo

    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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    MageSentinel

    MageSentinel

    MageSentinel

    MageSentinel is a hosted synthetic-monitoring service for ecommerce checkout reliability. It uses a real browser to check Magento 2/Adobe Commerce and WooCommerce storefronts, following product discovery, cart, address, shipping and payment steps, then verifies cart details and checkout behavior. Scheduled checks can also place an optional real test order, confirm it in the store's admin and cancel it. The service reports the failed step and likely cause, and attaches screenshots, browser traces, network and console logs with sensitive values redacted. Merchants, ecommerce teams, developers and agencies can monitor one or many stores and route alerts to email, Slack or webhooks. Optional Magento and WooCommerce connectors provide additional store diagnostics; the hosted checks do not require a connector to run.
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    Service Watch

    Service Watch

    Service Watch

    Service Watch is a comprehensive monitoring tool for websites, APIs, web services, cron jobs, and other internet-connected systems. It provides real-time monitoring, alerts, and detailed reports to ensure your services are running smoothly. Service Watch provides multiple alert options including email, SMS, Slack, Discord, and Telegram. We are constantly working on new notification channels, if you need something in particular don't hesitate to reach out.
    Starting Price: $29 per month
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    Uptimia

    Uptimia

    Uptimia

    Website performance monitoring service from 171 worldwide checkpoints, on six continents. Monitor the uptime of HTTP, HTTPS, DNS, UDP, TCP, email and more. Checks are performed as often as every 30 seconds, from 171 checkpoints! Monitor full website performance by loading it with a real Chrome browser. Receive reports on loading speeds or alerts if something goes wrong. Monitor web transactions (login forms, check-out forms, etc.) and be notified if something goes wrong. Find out where the problem has occurred precisely! Monitor the speed of user experience for visitors to your website. Receive detailed reports on loading speeds by country, browser, OS and more.
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    OpsDash

    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.
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    Cronhub

    Cronhub

    Cronhub

    Cronhub is a job scheduling and monitoring tool that allows users to automate tasks without managing servers or infrastructure. It supports scheduling jobs via time intervals or cron expressions and sends HTTP requests to a target URL to run jobs. Users can monitor the uptime and running time of their jobs, receiving instant alerts via email, Slack, SMS, Webhook, or PagerDuty if jobs fail or run longer than expected. Cronhub offers team collaboration features, providing a shared dashboard for multiple users, along with rich analytics, logs, and insights on job performance. The platform is designed to help developers and businesses maintain their recurring jobs efficiently, offering affordable pricing plans with a free trial for all paid tiers. Cronhub's serverless infrastructure ensures reliability through AWS and DigitalOcean. It's a valuable tool for preventing silent job failures that can lead to loss of data, revenue, or customers.
    Starting Price: $19 per month
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    HookWatch

    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.
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    Greenbar

    Greenbar

    Greenbar

    Greenbar is a hosted uptime-monitoring service for freelancers and small web agencies that manage client websites. Users organize monitored URLs by client and check them over HTTP or HTTPS against expected response codes, with optional keyword checks to catch error pages that return a successful status. Email alerts are available on every plan; paid plans add Slack and signed-webhook alerts. Each client gets a public status page with current service states and incident history; monitor URLs remain private. Paid plans offer client logos and brand colors and allow the Greenbar footer to be hidden. Free includes one client page, five monitors and five-minute checks, with seven-day check history. Freelancer includes 10 client pages and 50 monitors; Agency includes 30 client pages, 150 monitors and up to three logins. Paid plans offer one-minute checks and 90-day check history. New accounts receive $100 in free credit, and no payment card is required to start.
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    WebWatch24x7
    WebWatch24x7 is a powerful web-based tool for monitoring servers round the clock. This solution has been developed to remotely monitor server performance and generate necessary reports.The tool monitors server protocols like SMTP/FTP and web URLs on HTTP/HTTPS. Remotely monitoring servers helps businesses reduce website or application down-times with minimum cost and effort. QBurst offers this product to address the server monitoring needs of clients. Users can register for the service via the online portal and submit websites to be monitored. WebWatch supports four different kinds of user accounts. When a user signs up, he will be grouped as a Normal User on WebWatch. Users can also opt to become Subscribed Users and enjoy additional features. Support Engineer and Super Admin accounts are for providing administrative and support facilities to WebWatch users.
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    PingRelay

    PingRelay

    PingRelay

    PingRelay is an all-in-one website, API, and real user monitoring platform for developers, startups, agencies, and IT teams. Monitor uptime, response times, SSL certificates, APIs, and cron jobs from multiple locations. Get fast alerts when problems occur, investigate performance issues, manage incidents and maintenance windows, and keep customers informed with customizable status pages. PingRelay also includes Real User Monitoring (RUM), integrations with popular communication tools, detailed performance metrics, reporting, and AI-powered incident summaries, all in a simple, easy-to-use platform.
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    NodePing

    NodePing

    NodePing

    Monitor 200 services at 1 minute intervals all month for only $25. All our plans include unlimited international SMS notifications so your costs are predictable, no matter how many alerts you need. No contracts, cancel at anytime. Our SSL checks verify your HTTPS certificates and our HTTP checks verify your content and the server's reply. Sub-minute intervals (15-seconds) mean you're the first to know when something's not right. Flat-rate plans that include unlimited international SMS notifications and unlimited users. We provide two solutions for on-premise monitoring. Agents allow you to assign our standard checks to run in your private networks, so you can monitor private addresses with interval DNS. Push checks monitor server resources. Our automated and on-demand diagnostic tools will help you quickly troubleshoot why a service is failing. Get MTR or dig results automatically emailed when your service fails. See full HTTP request and response headers.
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    My Website is Online

    My Website is Online

    My Website is Online

    You can manage unlimited websites in your account. Multiple monitors are available: HTTP(s), matching text, ping and TCP. Email alerts are great but we think that SMSs are better to effectively track website downtime. Having a secure website with an up-to-date certificate is crucial. We send an alert before the validity period is over. Let your users know the status of your services and give them your contact information. This observer let you know when someone update your DNS records. It sends alerts when a record is added or removed. A notification will be sent as soon as the website is listed on an unsafe web resource list.
    Starting Price: $2.95 per month
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    IncidentHub

    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,