How to automatically start a WP plugin?

Question

Automation

Hello.
For example, I have 20 sites, on each one I need to check broken links from youtube in posts every few weeks. I use this plugin - Broken Link Checker for YouTube. Now you need to go through each site and manually check. The question is how can this work be automated?, I read about wp-cron, but I understand that it is used very little and it directly depends on users, i. for example, I set a certain task to start at 17.00, but it will not work if no one enters the site starting from 17.00. As for me - not a very good way to automate. Another version of the server cron, everything is clear here!),
So maybe someone faced a similar task, please write how you solved it, or maybe you have other ideas on how to automate this and similar tasks ?, before writing a question, I used the search and saw a similar question , but the answer and no, just a link to the description of wp-cron.
I will be very grateful)

Answer 1

Kron.