Cron Job MonitoringNever miss a failed scheduled task Uptime MonitoringMonitor website availability 24/7 Port MonitoringCheck open ports and service health SSL Certificate MonitoringGet alerts before certificates expire Domain ExpirationNever let a domain expire by accident Blocklist MonitoringCheck if your IP or domain is blacklisted Status PagesPublic status pages for your services Multi-Channel AlertsRoute alerts to Slack, SMS, PagerDuty & more Team & ProjectsIsolated workspaces with roles & permissions API & BadgesREST API and embeddable status badges Uptime ReportsPDF export, CSV, and shareable report links

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Cron Tools

Cron BuilderBuild expressions visually Cron ValidatorValidate and explain syntax Timezone ConverterCron runs across timezones Cron Examples400+ ready-to-use expressions Cron CalculatorExecutions per day, month, year

HTTP & Network

Is It Down?Check if a site is up or down HTTP Status CheckerStatus codes and redirects Response TimeDNS, TLS, and TTFB timing Redirect CheckerTrace every redirect hop Port CheckerTest if a TCP port is open

SSL & Security

SSL CheckerCertificate issuer, SANs, expiry SSL Expiry CountdownDays until certificate expires Security HeadersGrade your site's headers Headers CheckerAll HTTP response headers WHOIS LookupDomain registrar and expiry

DNS & Calculators

DNS LookupA, AAAA, MX, TXT, NS records MX LookupFind mail servers for a domain Uptime CalculatorSLA % to downtime converter Downtime CostHourly cost of an outage Monitoring ROIIs monitoring worth it?

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Home / Tools / Website Down Checker

Is It Down Right Now?

Enter a URL to check if a website is up or down from our server.

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Start monitoring in under 2 minutes

Free plan includes 20 checks. No credit card required.

it's free — 20 checks forever, no card required!

Free plan · 20 checks forever Get Started Free

WatchCron

Monitor your cron jobs, scheduled tasks, and background workers. Get instant alerts when something stops running.

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