Our cookie scanner is using URL /?ctpass=1 parameter to access your site and find all the cookies that site is using.
To prevent Google Analytics from counting stats for ?ctpass=1 requests – just create an IP address filter.
Our cookie scanner IP is:
- 159.89.130.200
- 138.68.252.185
- 159.89.220.85
Although we are trying to make sure these IPs won’t change, due to increasing popularity of cookie scanner some new IPs may be added. If you happen to see any cookie scanner activity in your Google Analytics account, please verify you have all IPs added.
How to create an IP address filter?
Check this documentation from Google Support: https://support.google.com/analytics/answer/1034840?hl=en