Setting up Autoptimize plugin with cloudflare

[arjoly35]

Hello,
I’m using siteground fo hosting and I set up cloudflare for the following website (subdomain is active on siteground portal) : https://www.preprod.stmauto.fr/
Performance on google insight are good however, website is working only on desktop. There is an issue on mobile phone (home page is blocked -> style issue ??).

I have entered the following url on autoptimize plugin : https://prnt.sc/twsoty. If I remove url in autoptimize plugin, everything works but performance are very bad for mobile device.

Thanks for your help

[sdayman]

Cloudflare doesn’t use a special CDN subdomain like other CDNs do. Leave that blank.

However, there is a problem with putting www in front of a subdomain:

Subdomain too deep

This tutorial covers a possible reason for the SSL_ERROR_NO_CYPHER_OVERLAP and ERR_SSL_VERSION_OR_CIPHER_MISMATCH errors (Firefox and Chrome respectively) when seen on a subdomain. The Cloudflare universal certificates cover example.com and *.example.com. This means that it covers any subdomain one level below the domain you signed up with. It will cover www.example.com and subdomain.example.com, as these are one level below the root domain, example.com. The certificate will not cover www.sub…

[arjoly35]

Thanks. I’ve just corrected issue with www. It will be good in few minutes.
If I remove CDN url, google insight score is very bad for mobile. Do you have advices to improve this google insight score?
Regards,
Arnaud