How do I prevent Render free tier web services from sleeping?

Render spins down free-tier web services after 15 minutes of inactivity. Render Alive prevents this by sending automated, lightweight HTTP keep-alive pings at 14-minute intervals, resetting the inactivity timer so your service remains awake 24/7.

How to fix Render 50 second cold start delay?

The 50+ second cold start occurs when incoming traffic wakes a suspended instance. Keeping the instance warm with periodic keep-alive pings from Render Alive eliminates cold starts entirely, ensuring immediate sub-second response times.

Will keeping Render alive exceed the 750 free monthly hours?

No. Render provides 750 free instance hours each month per workspace. A standard 31-day month has 744 hours (31 × 24 = 744). Running one free web service 24/7 consumes 744 hours, staying safely within the 750-hour limit with 6 spare hours.

Why do internal timers (setInterval) in Node.js or Python fail on Render?

When Render suspends an idle container after 15 minutes, the entire container process is frozen by the hypervisor. Internal timers stop executing completely. Only external inbound HTTP requests from an external edge monitor like Render Alive can wake or keep the service awake.

Why use Render Alive instead of generic uptime monitors like UptimeRobot?

Generic uptime monitors often face aggressive rate-limiting, require complex header setups, or have strict 5-second timeouts that fail during Render cold starts. Render Alive is purpose-built for Render developers with tailored 14-minute keep-alive intervals, adaptive 15-second cold-start tolerance, latency tracking, and zero setup.

Is using a keep-alive monitor permitted on Render free tier?

Lightweight HTTP health pings to your own public application are standard web traffic. As long as your total running time stays within your 750 monthly free instance hours, your service remains fully compliant with Render's platform usage.

// ZERO COLD STARTS • 24/7 CLOUD KEEP-ALIVE

Keep free cloud services awake 24/7 for free.

The UptimeRobot alternative that actually works. Automated keep-alive pings prevent idle spin-downs and 50s cold starts across Render, Koyeb, Glitch, and custom domain APIs.

0sCold-start latency

3Free slots per user

10sDaemon poll precision

// HOW IT WORKS

Three steps to zero downtime.

Free tiers spin down containers after 15 minutes of zero inbound traffic. Render Alive resets the clock continuously.

Connect Target

Add your .onrender.com, .koyeb.app, .glitch.me, .hf.space, or custom API URL with instant pre-flight validation.

Set Interval

Choose ping cadences from 5 to 30 minutes to trigger inbound HTTP traffic before container idle timers elapse.

Stay Awake

Dedicated 24/7 background daemons ping endpoints with 15-second cold-start timeouts and live telemetry.

// FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions

Does Render Alive support services beyond Render?

Yes. Render Alive actively keeps alive web services and APIs across Render (.onrender.com), Koyeb (.koyeb.app), Glitch (.glitch.me), Hugging Face Spaces (.hf.space), Fly.io, and any public HTTPS URL or custom domain.

Will 24/7 keep-alive exhaust my Render free tier quota?

No. Render provides 750 free instance hours per month. A 31-day month is 744 hours (31 × 24). Running one free web service 24/7 uses 744 hours, leaving 6 spare hours every month.

How does it eliminate cold starts?

By issuing lightweight HTTP GET requests before the provider's 15-minute inactivity window elapses. This keeps the container active in memory and avoids the 50–90 second boot penalty.

Ready to eliminate cold starts?

Join active developers keeping their apps responsive. 3 free slots with instant setup.