Serverless functions and databases (like MongoDB Atlas Serverless) suffer from cold starts. Keep them warm and responsive by pinging an API endpoint regularly.
Works with your tech stack
Functions freeze and DB connections drop when idle.
Vercel/Next.js functions spin down quickly. The first user to hit your app waits for the container to boot up.
MongoDB and other DBs close idle connections. Re-establishing the handshake adds significant latency to requests.
Create a simple API route (e.g., /api/health-check) that performs a lightweight DB query. Add
this URL to PingPulse to execute every 5 minutes.
How teams use PingPulse to optimize serverless.
"Our Vercel API routes were taking 2s to start. We built a dummy endpoint that queries our Mongo user count and ping it every 5m. Now it's instant."
"Essential for MongoDB Atlas Serverless. Keeps the connection pool active so we don't pay the handshake penalty on every user visit."
"We use this to wake up our internal dashboard API during business hours. Saves money at night, fast during the day."