Compare UptimeRobot vs. updown.io

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

Experience seamless dual-stack monitoring for both IPv4 and IPv6 without any configuration at the same cost. Users can adjust the check frequency to as low as every 15 seconds, and receive notifications through various channels including SMS, Webhook, Zapier, Telegram, Statuspage, and Slack or compatible platforms. The service offers multilingual reports on availability and performance metrics. Payment options include Bitcoin, altcoins, PayPal, and credit cards. Downtime incidents are verified from eight different locations to ensure accuracy. Additionally, developers can leverage the REST and Webhook APIs to integrate updown.io into their applications. Instead of just tracking standard HTTP status codes, users can also monitor the presence of specific strings. Alerts will be sent out for invalid or soon-to-expire certificates to help maintain website security. Furthermore, a read-only API key is available, allowing users to create public integrations, such as custom status pages or TV dashboards, directly using JavaScript without exposing write access. However, it is crucial to exercise caution when making this API key public, as all checks, including URL parameters and custom HTTP headers, can be visible, potentially compromising sensitive information. This added layer of security is vital for maintaining the integrity of your data and protecting user privacy.