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

c/side: The Client-Side Platform for Cybersecurity, Compliance, and Privacy
Monitoring third-party scripts effectively eliminates uncertainty, ensuring that you are always aware of what is being delivered to your users' browsers, while also enhancing script performance by up to 30%. The unchecked presence of these scripts in users' browsers can lead to significant issues when things go awry, resulting in adverse publicity, potential legal actions, and claims for damages stemming from security breaches. Compliance with PCI DSS 4.0.1, particularly sections 6.4.3 and 11.6.1, requires that organizations handling cardholder data implement tamper-detection measures by March 31, 2025, to help prevent attacks by notifying stakeholders of unauthorized modifications to HTTP headers and payment information. c/side stands out as the sole fully autonomous detection solution dedicated to evaluating third-party scripts, moving beyond reliance on merely threat feed intelligence or easily bypassed detections. By leveraging historical data and artificial intelligence, c/side meticulously analyzes the payloads and behaviors of scripts, ensuring a proactive stance against emerging threats. Our continuous monitoring of numerous sites allows us to stay ahead of new attack vectors, as we process all scripts to refine and enhance our detection capabilities. This comprehensive approach not only safeguards your digital environment but also instills greater confidence in the security of third-party integrations.
Learn more
Aotol Page Monitor
Aotol Webpage Monitor is a highly effective tool that has been aiding numerous users in monitoring website alterations since its inception in 2005. Whether you're interested in tracking price fluctuations or the latest updates, Aotol Page Monitor promptly alerts you via phone and email about any changes. Equip your business with the essential resources and support it requires to thrive by utilizing our dependable and efficient products. Allow us to help you provide the finest service to your customers. With Aotol, you can relax while we monitor your chosen webpages, notifying and highlighting any modifications in real-time. It diligently tracks changes on web pages that matter to you, making it an exceptional page monitoring solution. Stay ahead of the curve and remain informed; Aotol uncovers opportunities, keeps you updated on price shifts, and allows you to concentrate on other priorities. Remarkably, Aotol continues to monitor webpage changes even when the app is running in the background or is not actively in use. We ensure you're immediately informed of any alterations through push notifications regarding page changes. Let Aotol Webpage Monitor be your trusted partner in digital vigilance.
Learn more
ChangeDetect
ChangeDetect offers a service that allows you to monitor web pages for any changes, sending you automatic email alerts when content is updated. Keep track of all web-enabled content effortlessly and receive notifications of updates, complete with color-coded indicators to highlight what has changed. With a simple click, you can easily monitor web pages for alterations. Stay informed about website changes through notifications sent via email, ICQ, or text message, ensuring you're always the first to know about updates. This service is ideal for those who want to stay on top of the latest information without constantly checking their favorite sites.
Learn more