I’m changing SSL Certificates (https://) for this site.
I currently use Comodo, but there is an issue with certain browsers, so I’m swapping to Let’s Encrypt. Also, LE is free. Comodo isn’t.
This will involve switching nameservers, seting up LE, then switching nameservers back again. This could involve downtime, and/or SSL (https://) returning errors or “not secure” messages for a while. Nothing to worry about.
The end result will be a more robust site, and FREE SSL, forever. So, worth it then.