There is also the ePrivacy Directive. From what at the moment seems to me (it changes), it is in principle possible to make a GDPR compliant web analytics SaaS.

There is also the ePrivacy Directive. From what at the moment seems to me (it changes), it is in principle possible to make a GDPR compliant web analytics SaaS. But it might not be possible to avoid compliance banners given the current ePrivacy Directive. But most people don't know that thing exists.