Freshping
                
                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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                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.
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                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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                Server Check
                
                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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