Could you could assist me in determining why my website opens so slowly and why the Facebook sharing debugger returns an error?

[wackyblackie]

@HelMort

I’m not sure what CA chains are. Do you think it’s important? Should I try to solve the problem or just ignore it?

Ignore it, it’s not really important.

@HelMort

disabling wp-cron.php will solve the problem for good?

Doing this may help, but may cause trouble in the future.

@HelMort

is there any other way to have thumbnails? Maybe using a secondary website/service

Yes – if you use CloudFlare. But for that you will need a custom domain.

A Full Guide To Cloudflare

Hello, I will show you how to easily set up Cloudflare, Edit Records, and Troubleshoot with images! PLEASE READ BEFORE STARTING!!! Cloudflare cannot be used on free subdomains from InfinityFree. You can use Cloudflare on Custom Domains (yoursite.com) and with Custom Sub-Domains (subdomain.yoursite.com). A video tutorial can be found at the end of this guide, should you get stuck. You must connect your domain to your InfinityFree account first. Read more here. Set-Up Cloudflare Go to Dash…