Preventing Render.com from sleeping (cron-job.org)

Render.com's Free plan goes to sleep after 15 minutes of inactivity.

As a workaround, this uses cron-job.org, which sends periodic responses.
Here are the steps I'm keeping a record of.

1. Go to cron-job.org and create an account

cron-job.org

Reference site
Using cron-job.org to periodically access a specific URL

2. Create a JOB

From the Dashboard, click CREATE CRONJOB.

3. Configure COMMON

Set the URL and access frequency. Here I set it to 10 minutes.

This is the notification setting for when a run fails. (Optional)

4. Configure ADVANCED

Next, switch to the ADVANCED tab and configure it.

Finally, click the CREATE button to finish.