There are a bunch of third-party products that you can use with Google Analytics.
Here are a few of our favorites.
Data Verification: Verified Data
Verified Data is a forensic cloud-based tool that automates data quality checks & governance for Google Analytics.
Instead of having your staff hunt for errors, Verified Data automatically identifies problems like PII and page errors.
Web Analytics: Angelfish Software
Angelfish is self-hosted web analytics software, which is ideal for organizations that have a data protection requirement.
Angelfish can track any website or web-based application, internal or external, and shows information Google Analytics doesn’t show, like IP addresses and usernames.