I have trouble understanding how some things are related.
For a plugin, I would like to use HTML DOM on content from wp_remote_open to find a string.
In order to use DOM, does it have to be enabled by my webhost? or do I include a DOM parsing script with the plugin?
I was thinking that if it needs to be enabled by the webhosting company, I would rather use a regular expression to find the string because then it would be compatible for everyone's installation.