I as a non native English speaker and as a person with a very fundamental and minor knowledge about Apache PCRE, find the guide very complex and unaccessible; passages are too long and I get the feeling of being overwhelmed with data.
I host my website on a shared server and maybe much of what's written here isn't relevant for me.
Please kindly consider to split this webpage into two --- one for people with IaaS and dedicated cloud-modeled hosting environments and one for people like me with Faas/PaaS cloud-modeled hosting environments.