Alternatives to Port Monitor

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

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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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    Overmonitor

    Overmonitor

    Overmonitor

    Infrastructure and endpoint monitoring made easy! After Monitis ceased its services last year (sold to TeamViewer) we were left scrambling for a replacement solution. We evaluated Uptrends, Datadog, dotcom-monitor, CloudRadar, Pingdom, and Uptime and came up with our own solution based on the following requirements: Cloud-based SaaS solution, small and lightweight agent, fast configuration interface, a la carte pricing model, maintenance windows that work, geotargetting at the city level, all graphs embeddable, push notifications for any alert, process monitors with rollup, and audible dashboard alerts. At the heart of our solution is a small (2.1 MB) and lightweight server agent. Once installed and "paired" it will start reporting a "heartbeat" once per minute to our "ingest" API from inside your network. Monitor, analyze, and improve website performance and end-user experience.
    Starting Price: $2.50 per month
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    Sematext Cloud

    Sematext Cloud

    Sematext Group

    Sematext Cloud is an innovative, unified platform with all-in-one solution for infrastructure monitoring, application performance monitoring, log management, real user monitoring, and synthetic monitoring to provide unified, real-time observability of your entire technology stack. It's used by organizations of all sizes and across a wide range of industries, with the goal of driving collaboration between engineering and business teams, reducing the time of root-cause analysis, understanding user behaviour and tracking key business metrics. The main capabilities range from log monitoring to APM, server monitoring, database monitoring, network monitoring, uptime monitoring, website monitoring or container monitoring Find complete details on our website. Or better: start a free demo, no email address required.
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    Netumo

    Netumo

    Netumo

    Netumo is a 24×7 host and site up-time and SEO monitor with integrated domain and SSL certificate expiry notification to manage all monitoring from one location. As soon as a website is down or a domain or SSL certificate is about to expire Netumo will inform you via SMS, Email, Twitter, Telegram, Slack, Cisco Webex or Microsoft Teams. Netumo has also an easy way of monitoring your APIs without requiring complex scripting enabling your teams to set up monitoring in minutes. This gives your IT teams better visibility of the infrastructure and enables them to be proactive in fixing issues. They will be the ones chasing the issues and not other teams chasing them when issues arise.
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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.
    Starting Price: $9/month
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    rhealth.dev

    rhealth.dev

    rhealth.dev

    rhealth.dev is an uptime monitoring platform designed to reduce alert noise and speed up incident response. It monitors websites, APIs, cron jobs, TCP services, and internal systems from up to 40 global locations, confirming failures across regions before alerting. This eliminates false positives caused by temporary or local network issues. Unlike traditional monitoring tools that only say “down,” rhealth.dev sends actionable alerts with exact failure reasons such as timeouts, connection errors, slow responses, or content mismatches. Key capabilities 1. Website & API uptime monitoring 2. Response time and performance tracking 3. SSL certificate expiry alerts 4. Keyword and partial-failure detection 5. Cron job & background task monitoring 6. TCP and database port checks 7. Private network monitoring using Docker-based checkers Free plan includes 1. 20 monitors 2. Unlimited team members 3. Unlimited status pages 4. No credit card required
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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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    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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    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.
    Starting Price: $9 per month
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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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    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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    NotifyNinja

    NotifyNinja

    NotifyNinja

    Ninja secure a website from a crash. Your team will be notified within 30 seconds if something goes wrong. Notify Ninja save your websites and servers out of big downtime and technical issues. Website monitoring is constantly checking your website to assure everything is operating as it should. This is an automated process, which helps you monitor your site every single minute and collect the performance results of your website. When problems arise, NotifyNinja lets you know about the problem within 30 seconds which helps you to fix the problem faster. You should always keep an eye on your website because even modern websites and applications can’t guarantee that you won’t have any troubles. Even Facebook, Twitter, or Google can’t get with any website problems or outages. Monitoring tools control your website availability from multiple locations and measure your response time at regular intervals. You can also control processes to check important customer interactions.
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    WebSitePulse

    WebSitePulse

    WebSitePulse

    WebSitePulse provides independent, remote monitoring of your web assets. Some of the most used services are uptime monitoring, website monitoring, server monitoring, web transaction monitoring.
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    Watchman Tower

    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
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    Apdex

    Apdex

    Apdex

    Improve your users' satisfaction. Gain insights into your website's availability and performance to increase conversion rate and income. Uptime, Performance and SSL monitoring, all combined in one UI. Downtime happens, be the first to know. Track availability of your website, server or API to get instant notifications of downtime. Focus on what matters to your users. Constantly measure the user experience metrics of your Website with Lighthouse tool to improve customers' satisfaction. Do not miss downtime or degradation of response time by receiving notifications to your favorite channels. Increase users' confidence by sharing your uptime statistics. Track what's important, create public status pages with your Website or API availability information. Monitor core web vitals as well as other core lighthouse metrics. Get hints to provide best experience to your customers. Do not miss chance to improve.
    Starting Price: $5 per month
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    Cyboruz

    Cyboruz

    Cyboruz

    Cyboruz is an all-in-one website monitoring and cybersecurity platform designed to help businesses detect and resolve critical website, email and security issues before they impact customers, rankings or revenue. The platform continuously monitors uptime, SSL certificate expiry, domain expiry, security headers, SPF, DKIM and DMARC email authentication, blacklist status and website security risks from a single dashboard. Businesses receive proactive alerts when issues are detected, helping prevent downtime, email delivery problems and trust issues. Unlike traditional uptime monitoring tools, Cyboruz combines website monitoring with security and email infrastructure checks, giving businesses a broader view of website health and online reputation. The platform also offers expert “Fix This For Me” services for businesses needing fast issue resolution.
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    Xitoring

    Xitoring

    Xitoring

    Stop using multiple apps for server uptime and performance monitoring. Get Xitoring , and start monitoring numerous servers and websites in minutes by running one CLI command. We’ll automatically configure everything! Xitoring is an innovative SaaS platform for server monitoring. Our agent, Xitogent , gathers data from your servers to ensure optimal performance and prevent downtime. By keeping your systems running smoothly, we help boost customer satisfaction. Our global probing nodes continuously monitor your servers. If any issues arise, we notify the right contact instantly. At Xitoring, we’re committed to improving our software and adding incredible features in the future. Introduced in 2021, Xitoring aims to revolutionize the server monitoring industry with automation for those tired of traditional methods.
    Starting Price: $4.99 OR Lifetime free
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    StatusCake

    StatusCake

    StatusCake

    StatusCake.com is a free website monitoring service ensuring that website owners are alerted the moment their website goes down or is experiencing problems. StatusCake premium plans allow multiple websites to be monitored (300 on the Business plan), as well as selecting the global location from where uptime is tested from. Additional features include page-speed testing, domain monitoring, server monitoring, SSL monitoring, as well as virus and malware scanning. We'll keep an eye on your website performance for you in the background. Website downtime happens. We'll send you a notification letting you know when it does. Sit back. Relax. Focus on your business. Let us worry about your uptime. Website monitoring that does all the hard work for you. We’ll alert you when your website goes down. With 30 second check rates and 30 different countries to monitor from, you’re in safe hands.
    Starting Price: $24.99 per month
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    Plomer
    Plomer is a modern website and domain monitoring platform that tracks uptime, SSL status, DNS changes, and performance metrics in real time, with instant alerts and detailed logs. Plomer is a comprehensive monitoring platform designed for developers, startups, and businesses that depend on website reliability. It continuously monitors websites, APIs, and domains to detect downtime, SSL certificate issues, DNS changes, and performance degradation. Users receive real-time alerts via notifications, allowing them to respond before issues impact customers. Plomer provides a clean, modern dashboard with logs, historical uptime data, and actionable insights. It is built for speed, simplicity, and reliability, offering an alternative to legacy monitoring tools with a more developer-friendly and mobile-first experience.
    Starting Price: $59.99/year/user
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    Turbo Monitor

    Turbo Monitor

    Turbo Monitor

    There is absolutely nothing to install. Just select a URL, indicate the type of alert you want to receive, and start receiving notifications the instant your web or network performance falters. An easy-to-read dashboard that gives you visibility of the status of each website monitored, lists all events detected, and allows you to update your account settings in seconds. View uptime, downtime and crashes in clear real-time graphical reports. Select time and date parameters to pinpoint the root causes of downtime or performance issues. See how well your site is performing in graphical reports that present average response time for a selected time period. Add team members of service providers as additional users, so they also get informed of dips in performance or connectivity issues and can help diagnose and resolve the root cause.
    Starting Price: $5.95 per month
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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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    Awakish

    Awakish

    Awakish

    Awakish is a website monitoring tool that helps businesses instantly detect downtime, monitor SSL certificates, generate performance reports, and more. Suitable for both customers and vendors like MSPs and SIs. The best monitoring solution is the one that gets deployed and used! Skilled IT experts are not required, but if you are a skilled tech professional, you’ll appreciate the time-saving simplicity of our 2-minute installation or our free batch upload service for large pools of HTTP endpoints and servers. We provide a secure and easy to monitor solution for all the assets that you watch over - regardless of location, cloud, or technology. Anything you can ping, we can monitor. Awakish can also allow your customers to see how well you are servicing them. With constant uptime status, shared summary reports and status badges that you can embed anywhere, you can stay top of mind with your clients.
    Starting Price: $7 per month
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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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    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.
    Starting Price: €10/month
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    Pingometer

    Pingometer

    Pingometer

    Pingometer monitors the uptime, downtime, and performance of websites. As the number one website uptime monitoring solution, Pingometer provides around-the-clock monitoring service to ensure that your website is always up and running. Pingometer offers HTTPS, HTTP, RUM, ICMP, DNS, POP3, IMAP, SMTP, UDP, TCP, API, and transaction monitoring. Core features include smart alerts, REST API, 24/7 coverage, detailed reports, and more.
    Starting Price: $9.00/month
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    Aepto

    Aepto

    Limitless Hosting Ltd

    Aepto is an AI-powered domain monitoring platform built to give full visibility and control over domains spread across multiple providers. Instead of logging into separate registrar, hosting, and email dashboards, Aepto centralizes everything into one clean interface and continuously monitors domain health using public signals and AI analysis. Once a domain is added, Aepto automatically scans the registrar, hosting setup, email configuration, pricing, and renewal details—no APIs or integrations required. It monitors email deliverability, DNS records, website and subdomain uptime, content changes, and suspicious activity such as nameserver changes or lock status updates. When something goes wrong, Aepto alerts you early and clearly explains what happened and which provider to contact.
    Starting Price: $9 per month
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    Odown

    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.
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    ServiceUptime

    ServiceUptime

    ServiceUptime

    Whenever your website becomes inaccessible or returns incorrect data ServiceUptime alerts you within seconds via email or SMS! ServiceUptime is remote website uptime monitoring designed to help you detect website downtime which can mean lost revenue and profits. The worst thing is users may never return to your website again if they experience difficulties opening your website. Register for free monitoring account and take control over downtime today! Let ServiceUptime monitor your website 24/7/365 and alert you immediately upon your website accessibility, availability or performance problems. ServiceUptime has become one of the leading providers of port, server and website monitoring and alerting services. ServiceUptime is constantly growing and extending the functionality of the system. ServiceUptime provides remote monitoring service for your website. We monitor server availability and performance externally from our worldwide network of monitoring stations.
    Starting Price: $ 4 .95 per month
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    Host-Tracker

    Host-Tracker

    Host-Tracker

    HostTracker offers you around-the-clock monitoring and reports of uptime and response time giving you alerts of maintenance scheduling and database monitoring. They have an instant check available and can offer you many more services in the process of tracking your site to maintain its proper functioning. Thanks to it, you can eliminate your downtime and increase its uptime. Your sites or servers will be checked from locations around the globe at specific intervals. We send uptime reports to you, also you can expose uptime data to your customers and partners.
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    Starting Price: $9.90 per month
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    Onemon.io

    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
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    DNS Check

    DNS Check

    Wind Serve

    DNS checks made easy. DNS Check enables you to monitor, share, and troubleshoot DNS records easily. Monitor Monitor DNS records and name servers for changes and lookup failures. Get notified if something changes. Import your entire zone file or just those records that you want to monitor. Share Request DNS record updates by sharing a link that shows which records are posted correctly, and which aren't. Get notified as updates are detected. Quickly troubleshoot and resolve DNS issues. If something's broken, our DNS checker allows you to identify whether it's there's a DNS issue involved and, if so, what to fix. The DNS Checker. At the heart of DNS Check is a DNS record checking tool, which compares the DNS records that you enter to what DNS servers are returning in response to queries. If there's an issue, the record checking tool enables you to identify it quickly. Detectable issues include: Unresponsive name server. The wrong IP address returned.
    Starting Price: $8 per user per month
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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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    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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    PageRadar

    PageRadar

    PageRadar

    PageRadar is a comprehensive SaaS platform for automated website monitoring and SEO health tracking, combining multiple monitoring tools into a unified dashboard. Core Features: Performance Monitoring: Track Google Core Web Vitals (LCP, CLS, FCP, TTFB, INP) with custom threshold alerts powered by Google PageSpeed Insights API. SEO Change Detection: Monitor HTML elements including title tags, meta descriptions, headings, Schema.org markup, and Open Graph tags. Detects Product schema changes (pricing, availability) with intelligent diff analysis and email alerts. Search Rank Tracker: Monitor keyword positions across Google, Bing, and Yandex in 167+ countries. Track SERP features (Featured Snippets, AI Overview) with position threshold alerts. Uptime Monitoring: Track HTTP status codes, SSL certificates, and detect downtime with instant notifications. Affiliate Link Validator: Test affiliate links across 167 countries using geo-targeted proxies.
    Starting Price: 29$/month
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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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    UptimeMonk

    UptimeMonk

    UptimeMonk

    UptimeMonk is a professional uptime monitoring solution designed to ensure businesses never miss a critical downtime event. With real-time website and API monitoring, it provides instant alerts the moment services go down. The platform tracks response times, monitors multiple check locations, and even validates API responses with text checks and POST data. Smart alerting features allow teams to customize thresholds, escalation logic, and delivery channels for maximum reliability. By providing detailed analytics, UptimeMonk helps businesses quickly identify performance issues and maintain seamless operations. Built with simplicity in mind, it delivers only the essential tools to keep systems running smoothly.
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    MonitorMyWeb

    MonitorMyWeb

    DYSC IT Solutions

    Even with maximal uptime, a website can still fall short of expectations if it is slow or sluggish. MonitorMyWeb can help you pinpoint where performance is failing whether it’s a sudden rise in visitors or a server issue. Be a global success with checkpoints covering 6 continents from Sydney to California, you will know when and where you are at peak performance. Discover how you’re performing now. Benefit from minute by minute updates to keep up to speed with how your website is performing. Want to feel empowered? You could be by understanding how your website performs on a global scale. Alerts about having an issue is ok, have alerts with information about what is wrong is great. Every alert we provide includes precise status codes so you will know exactly what requires fixing, saving you time and customers.
    Starting Price: $3.75 per month
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    Infraon Uptime
    Use a single service availability tool with a single source of truth. Receive alerts only when it matters, with retries, sensitivity & timeout checks. Get a website status monitoring platform to continuously assess uptime. Infraon Uptime is a unified SaaS platform to monitor your websites, network devices, servers, and ports, all from one location. Keep a close watch on your remote business-critical IT infrastructure with multi-location assessment and get integrated incident management functionalities to resolve issues right away. Infraon Uptime ensures that your teams can easily zero in on downtime issues with an intelligent alerting system. Send updates and push notifications to relevant teams through SMS, email, Slack, etc., and get response time metrics to enhance your network and website performance monitoring capabilities. Get data-rich insights at your fingertips with a proactive monitoring dashboard that helps track alerts, SLAs, etc.
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    UpTimeTools

    UpTimeTools

    UpTimeTools

    UpTimeTools.net is a comprehensive website monitoring service trusted by thousands to ensure unmatched uptime, speed, and reliability for websites and APIs. The platform offers real-time monitoring of website availability, API performance, and user experience through features like synthetic monitoring, real user monitoring (RUM), and private location monitoring. It provides instant multi-channel alerts via phone, email, SMS, and Slack to enable rapid response to downtime incidents. Users can create custom status pages to communicate incident updates and maintenance schedules transparently. UpTimeTools.net supports over 80 global monitoring locations and offers unlimited integrations and user accounts on premium plans. With detailed reporting and customizable dashboards, businesses gain critical insights to optimize website performance and customer experience.
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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.
    Starting Price: $8 per month
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    AlertSleep

    AlertSleep

    AlertSleep

    Every minute of downtime costs money, reputation, and users. AlertSleep watches your services around the clock and alerts you the moment something breaks — so you can fix it fast. 🔍 What AlertSleep does: • Monitors websites, APIs, and services every 1 minute • Sends instant alerts via Email, Slack, Telegram, Teams, WhatsApp, SMS, or Voice call • Tracks response times and uptime statistics • Creates public Status Pages to keep your users informed • Logs every incident with timeline and recovery time 🆓 Free forever plan: • 5 monitors (check every 5 min) • 1 public status page • Email alerts included • No credit card required 💼 Who it's for: • Indie developers who can't afford enterprise tools • Startups that need reliability without complexity • Agencies managing client websites • Small businesses with online presence 🌍 Available in 7 languages: English, German, French, Spanish, Polish, Portuguese, Czech
    Starting Price: $5/month
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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.
    Starting Price: $16/month
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    Monitor.us

    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.
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    WPMissionControl

    WPMissionControl

    WPMissionControl

    WPMissionControl provides comprehensive monitoring solutions for WordPress websites. Our services include uptime and response time monitoring, SSL certificate oversight, website health analysis, and integrity checks for core files, themes, and plugins. We offer real-time alerts via email, Slack, and SMS for premium users, along with malware cleanup services. Showcase your website’s performance and security with a public Status page and a Security Badge. Ensure your WordPress site remains secure, reliable, and optimised with WPMissionControl.
    Starting Price: $9.98/month
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    C9 Pharos
    C9Pharos is a comprehensive website and web application monitoring platform that provides real-time insights and proactive alerts to ensure optimal site performance and availability. It continuously monitors website uptime, functionality, and user experience by simulating real user interactions and detecting issues before they impact end-users. C9Pharos offers multi-location monitoring, enabling businesses to check their websites' responsiveness and availability from different regions around the world. It includes advanced synthetic monitoring, allowing users to create complex, scripted tests to monitor critical workflows, transactions, and APIs. With instant alert notifications via email, SMS, and other channels, C9Pharos ensures that teams are immediately informed of any downtime or performance degradation. It also provides detailed analytics and reporting tools, helping businesses analyze trends, identify recurring issues, and improve overall site reliability.
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    Domain Monitor

    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
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    LoadFocus

    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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    Hexometer

    Hexometer

    Hexact, Inc

    Based on AI technology the Hexometer™ monitoring service periodically scans over 2800 data points on your website to make sure your digital assets are in pristine condition. The monitoring service continuously checks your website and informs you in case of any erosion to its health. It will also give you tips and tricks on how to improve your website’s hygiene, ultimately improving your online visibility and performance. Your website is how the world sees your business. But If that first impression is a slow or broken website, that first visit will be their last. Unlike traditional uptime monitoring platforms that just tell you when your website is down, Hexometer is like having your very own QA team, continuously monitoring your website across six core areas including availability, performance, user experience, health, SEO, and security. Get real-time notifications when issues are detected via email, SMS, Slack, Telegram & Trello.
    Starting Price: $8.25 per month
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    OneUptime

    OneUptime

    Seven Summits Studio

    OneUptime monitors your website, dashboards, API's, and more and alerts your team when downtime happens. We also give you a Status Page which keeps your customers looped in and improves transparency. With OneUptime, you get a complete SRE toolchain out-of-the-box. One interface. One conversation. One permission model. Thousands of features. You'll be amazed at everything OneUptime can do today. And we're just getting started. Complete end-to-end real time visibility of all projects on more activities across the expanded DevOps and SRE processes.
    Starting Price: $25.00/month/user
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    PA Server Monitor

    PA Server Monitor

    Power Admin LLC

    On-premises server and network monitoring that is quick to setup and easy to use. View status reports for servers/devices, group summaries, uptime, and historic stats. Reports are viewable via the web interface, can be password protected, and delivered via email. Securely monitor DMZs and remote offices from a central Console, without a VPN, without agents on every server, and without holes in the remote firewall. Our customers regularly tell us that PA Server Monitor is the easiest to use in its class. Easily configure server monitoring for hundreds of servers/devices with a few clicks. SNMP, Traps, Syslog and more to support a diverse computing environment.
    Starting Price: $99/server perpetual