Website Uptime Monitoring for Free — Build It in 30 Lines

You don't need Pingdom or UptimeRobot. A simple Node.js script + Apify scheduler = free monitoring. The Check async function check ( url ) { const start = Date . now (); try { const res = await fetch ( url , { method : " HEAD " , signal : AbortSignal . timeout ( 10000 ) }); return { url , isUp : res . status < 400 , status : res . status , responseMs : Date . now () - start }; } catch ( e ) { return { url , isUp : false , error : e . message , responseMs : Date . now () - start }; } } What to Monitor Status code — 200 = up, 4xx/5xx = down Response time — >3 seconds = slow SSL cert — expiring soon? Content — page loads but empty? Free Scheduling Apify lets you schedule actor runs on a cron. Set hourly checks for free. I built an Uptime Checker on Apify — search knotless_cadence uptime .