Monitor your websites 24/7 with powerful HTTP and HTTPS checks. Instant alerts, millisecond-accurate response time tracking, and maximum availability for every page.
Website uptime monitoring is the practice of continuously checking whether your website is accessible and functioning correctly for visitors. A website uptime monitor sends HTTP or HTTPS requests to your site at regular intervals and verifies that the server responds with the expected status code within an acceptable timeframe. If the check fails - due to a server crash, DNS issue, expired SSL certificate, or any other problem - the monitoring service immediately alerts you through your configured notification channels.
For businesses that depend on their online presence, website uptime monitoring is not optional - it is essential. Studies show that even a few minutes of unplanned downtime can cost e-commerce businesses thousands of dollars in lost sales, damage brand reputation, and erode customer trust. Search engines like Google also factor site reliability into their ranking algorithms, meaning that frequent downtime can directly hurt your SEO performance and organic traffic.
UptimeMonitorX provides enterprise-grade website uptime monitoring that is easy to set up and completely free to start. Add your first website monitor in under 30 seconds, configure your preferred alert channels, and gain peace of mind knowing that you will be the first to know if your site goes down - not your customers.
Monitor any website URL with full support for HTTP and HTTPS protocols. UptimeMonitorX automatically verifies SSL certificates and validates HTTP response status codes with every check, ensuring your website is both reachable and properly secured.
Check your website as frequently as every 60 seconds. With one-minute monitoring intervals, you can detect outages within minutes instead of hours, dramatically reducing the impact of downtime on your business revenue and user experience.
Track website response times with millisecond precision across every check. View historical response time trends on interactive graphs to identify performance degradation, slow pages, or infrastructure bottlenecks before your visitors notice any issues.
Receive real-time downtime notifications via 17+ channels including Email, Slack, Discord, Telegram, MS Teams, PagerDuty, Google Chat, Twilio SMS, Pushover & more the moment your website goes down. Configure multiple alert channels per monitor for redundancy, ensuring you never miss a critical outage event.
Define exactly which HTTP status codes indicate a healthy response for each monitored URL. Monitor for specific error codes, unexpected redirects (301, 302), or server errors (500, 502, 503) to catch issues that simple ping checks would miss.
Go beyond basic availability checks by verifying that your web pages contain specific keywords or phrases. Detect website defacements, error messages, blank pages, or missing content that would indicate a functional failure even when the server returns a 200 OK status.
Every HTTPS website monitor automatically includes SSL certificate tracking at no extra cost. Receive expiry alerts 30, 14, 7, and 1 day before your certificate expires, so you never lose visitor trust due to an expired or misconfigured SSL certificate.
Create branded public status pages that display real-time uptime data for your monitored websites. Share a single URL with your users, clients, or stakeholders so they can check service availability without contacting your support team.
Add your website URL - Enter your website address, choose your check interval (from 1 to 60 minutes), set the expected HTTP status code, and configure a timeout threshold. The entire setup takes less than 30 seconds.
Continuous automated monitoring - Our monitoring infrastructure sends HTTP or HTTPS requests to your website at your chosen interval. Each check records the response status code, response time in milliseconds, and whether the content matches your keyword criteria.
Instant alert on downtime - The moment a check fails, UptimeMonitorX sends you an immediate notification through all your configured alert channels - Email, Slack, Discord, Telegram, MS Teams, PagerDuty, or any of our 17+ supported channels. When the site recovers, you receive a recovery notification with the total downtime duration.
Review reports and analytics - Access detailed SLA uptime reports with uptime percentages, response time graphs, incident logs, and downtime duration summaries. Use the data to optimize your infrastructure and demonstrate reliability to stakeholders.
Yes. UptimeMonitorX offers a free plan with up to 5 monitors, 5-minute check intervals, and email alerts. No credit card is required to sign up. Paid plans unlock more monitors, faster intervals, and additional alert channels like Slack, Discord, Telegram, MS Teams, PagerDuty, Google Chat, and 11 more.
Alerts are sent immediately after a failed check is confirmed. With 1-minute check intervals on paid plans, you can be notified within 60 seconds of an outage. Free plans check every 5 minutes, so you would be alerted within 5 minutes of downtime.
Absolutely. You can monitor as many websites as your plan allows from a single dashboard. Each website gets its own monitor with independent settings for check interval, alert channels, expected status codes, and keyword verification.
No. Each monitoring check is a single lightweight HTTP request - identical to what a regular visitor's browser sends. It has zero measurable impact on your website's performance, server load, or bandwidth usage.
Set up your first website uptime monitor in 30 seconds. Free plan includes 5 monitors - no credit card required.
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