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 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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Visual Sentinel
Visual Sentinel is an advanced six-layer monitoring solution designed to oversee public websites, web applications, APIs, and client portfolios effectively. It incorporates various functionalities such as tracking HTTP uptime, assessing performance through Core Web Vitals, monitoring SSL certificate and domain expiration, detecting DNS changes, and enabling rendered browser screenshot comparisons along with critical content checks. This platform excels at identifying failures that standard ping monitors often overlook, which includes issues like blank page renders, absent calls to action, faulty layouts, website defacement, injected malicious content, and unforeseen changes on pages that still return a 200 OK status. The system maintains comprehensive incident records that consolidate response actions, timelines, and visual proof of issues encountered. Teams can receive alerts through multiple channels, including email, Slack, Discord, Telegram, WhatsApp, Microsoft Teams, PagerDuty, Opsgenie, webhooks, and browser push notifications, all customizable to their operational needs. Moreover, it offers additional functionalities such as server monitoring, API oversight, status page generation, client reporting, integrations with Google and Cloudflare, an Android app companion, a REST API, and various MCP tools, enriching the user experience further. By leveraging these features, users can ensure that their online presence remains robust and reliable.
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Oh Dear
Oh Dear gives technical teams one view of every website they manage. Oh Dear detects outages, SSL problems, DNS changes, expiring domains, failed cron jobs, broken pages, performance regressions, sitemap errors, API failures and unhealthy application components.
Oh Dear runs uptime checks every minute from locations worldwide. Oh Dear routes incidents through Slack, Microsoft Teams, email, PagerDuty, Opsgenie and webhooks. Oh Dear provides branded status pages, monthly reports, AI-powered checks, ping monitoring, TCP-port checks and SSO.
Oh Dear has operated from Belgium since 2018. Oh Dear stores monitoring data in the EU, supports GDPR requirements and offers a 10-day trial without payment information.
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