Maybe the author meant to express, “Regardless, if the global system of interconnected computer networks is functioning properly and you have a connection to it, you can host a document on the web.” since a “global system” and “your connection to it” are separate things, and either can have a problem while the other does not have a problem. That’s me being charitable though, and I agree that it’s more likely that they were being redundant.
Maybe the author meant to express, “Regardless, if the global system of interconnected computer networks is functioning properly and you have a connection to it, you can host a document on the web.” since a “global system” and “your connection to it” are separate things, and either can have a problem while the other does not have a problem. That’s me being charitable though, and I agree that it’s more likely that they were being redundant.
I also find it interesting that the original sentences reference “the internet” (with a lowercase “i”) rather than “the Internet”. “The word is sometimes still capitalized to distinguish the global internet from smaller networks”, so it’s interesting that the author might be referencing an internet that is not global rather than a global network. They probably are referencing “the Internet” though, since “many publications, including the AP Stylebook since 2016, recommend the lowercase form in every case”.