The most reliable web uptime monitor and website downtime tracker. Monitor your sites 24/7, get instant downtime alerts, and track uptime with precision.
Professional web uptime monitor trusted by thousands of websites
Professional uptime monitor with instant downtime alerts, detailed analytics, and seamless integrations. Track website downtime with precision.
Monitor all your websites with our site uptime checker. Live status updates, response times, and uptime percentages at a glance.
Get notified immediately when your website goes down. Our downtime monitor sends instant alerts via email, SMS, Slack, webhooks, and PagerDuty integrations.
Comprehensive website downtime tracker with detailed analytics. Track response times, uptime trends, and performance metrics. Export data or view detailed charts.
Track certificate expiration dates. Get alerts before certificates expire. Support for wildcard and multi-domain certs.
Professional web uptime monitor with 24/7 monitoring from multiple global locations. Detect regional outages and ensure worldwide availability with our reliable uptime bot.
Full API access included. Automate monitoring setup, integrate with CI/CD, or build custom integrations.
Professional site uptime monitoring plans with API access and webhook notifications. No per-alert fees. Scale your web uptime monitor without surprise costs.
Side projects
Production apps
Scale without limits
Our uptime bot is trusted by engineering teams at scale. Professional site uptime monitoring built by developers, for developers.
"Best uptime monitor we've used. The site uptime checker is accurate and the downtime alerts are instant. Our web uptime monitor never misses downtime."
"Our uptime bot integrates perfectly with our workflow. The website downtime tracker shows everything we need, and site uptime monitoring alerts are instant. Zero downtime since we started."
"Reliable downtime monitor that just works. The site uptime checker helps us track performance, and the web uptime monitor never fails. Perfect for our needs."
Start monitoring your websites with our site uptime checker in minutes. Professional web uptime monitor with instant downtime alerts and powerful analytics. No credit card required.