You'll need consent for any data collection not essential to your site's functionality, even if you host stuff yourself.
If all you so is collect how often your pages are being visited then you're not collecting any PII and you don't need a banner, but if you're tracking visitors based on unique identifiers (cookies, IP addresses, etc.) you'll need to get consent first.
If all you so is collect how often your pages are being visited then you're not collecting any PII and you don't need a banner, but if you're tracking visitors based on unique identifiers (cookies, IP addresses, etc.) you'll need to get consent first.