We are collecting data from multiple domains/subdomains (example.com, subdomain-1.example.com, subdomain-2.example.com) into a single website/property in Matomo (self hosted instance).

If I look at Behaviour -> Pages I can see all the different page URLs.
I want to create some segments for the different domains/subdomains.
I've created a couple:

• Segment 1: "Page URL" contains "subdomain-1.example.com"
• Segment 2: "Page URL" contains "subdomain-2.example.com"

Expected Behavior

When I view Segment 1, I expect to only see page URLs that contain "subdomain-1.example.com", as that is how the segment is configured.

When I view Segment 2, I expect to only see page URLs that contain "subdomain-2.example.com", as that is how the segment is configured.

Current Behavior

When I view Segment 1, I see page URLs with example.com, subdomain-1.example.com and subdomain-2.example.com.

When I view Segment 2, I see page URLs with example.com, subdomain-1.example.com and subdomain-2.example.com.

Thus it seems the segmentation based on page URLs doesn't work as it should.

Possible Solution

Steps to Reproduce (for Bugs)

1. Send data from multiple URLs into a website/property in Matomo
2. Create a custom segment and configure it so that it only includes page urls that contain 1 spesific url
3. Open the segment, it will now show page urls that are not supposed to be included as per the segment configuration.

Context

Your Environment

• Matomo Version: 4.10.1
• PHP Version: 8.0.20
• Server Operating System: Linux
• Additionally installed plugins: GoogleAnalyticsImporter

• Browser:
• Operating System: