UptimeRobot
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
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Uptime.com
Uptime.com website monitoring solutions provide unmatched visibility and availability, empowering engineering, operations and SRE teams to monitor & respond to their most essential services. Simple & intuitive industry leading Enterprise-grade features delivered at a fair price, that are continuously improving.
G2, Sourceforge and TechRadar Pro have recognized us as one of the world’s best uptime monitors for several consecutive years, including this one. Try 100% free.
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Pagescreen
Regularly visiting numerous websites each day to identify emerging trends can be incredibly time-consuming, monotonous, and prone to errors. Instead, streamline your industry oversight by automating the tracking of visual changes on websites. Receive instant notifications for any content updates as they happen, and customize alerts for each monitoring channel according to your preferences. Alerts can be sent via Email, Slack, and Webhooks to keep you informed. Capture a vast array of high-quality screenshots on both desktop and mobile devices to document the visual progression of your favorite sites. Organize your monitors into collections for easier management and more efficient navigation. Ensure that you never overlook any updates by grouping your team members so that everyone is informed when relevant changes occur. Collaborate effectively by commenting and discussing directly on the screenshots you capture, fostering a more interactive monitoring experience. This approach not only saves time but also enhances the accuracy of your trend spotting efforts.
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WebMonitors
WebMonitors, a SaaS-based platform for monitoring changes to websites, is cloud-based. It allows users track modifications to any website, including those behind logins. By monitoring specific elements such as text, images, or HTML. Users receive instant notifications via email, Discord, or Slack when changes are detected. The platform is perfect for tasks such as competitor tracking, price monitoring and job listings. It also offers customizable alert settings and frequency to ensure timely notifications.
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