Masked IP adress filtering

Hello! I have a few questions regarding IP address filtering in Matomo. I want to filter out internal traffic, and I have added all the addresses to the “Global list of Excluded IPs.”

I’m a bit unsure if the filtering has been done correctly because the IP addresses we see in the reports are masked. Therefore, I’m wondering if the filtering happens before or after the masking? If the filtering occurs after masking, the filter may not match the correct IP address and thus won’t be able to filter out the traffic accurately. I haven’t seen a significant change in traffic volume after filtering the addresses, so I want to make sure I’ve done it correctly. :slightly_smiling_face:

Thanks in advance!

Hi there,

The filtering will be done prior to anonymization. Is there another way you can check to see if internal traffic is coming in? For example, they have a user ID or only have access to certain URLs?