[acdanger]

Many companies have their marketing site at www. and they're app at at, say, app. e.g. https://www.netlify.com/ vs https://app.netlify.com/

[mplewis]

That's www vs app, not www vs lack-of.

[acdanger]

Ah. Thanks for clarifying that.

[jhki]

app. subdomains are not hidden