How do I create a segment to target web push subscribers and exclude mobile app users?

To target web subscribers and exclude mobile app users, use the default system tag named Platform. The SDK updates this tag when a user registers or visits your website.

You can build this segment in the segment builder by going to Audience and then Segments. Use one of the two options below.

Target specific browser platforms

This method targets web browsers directly. Because mobile apps register under platforms like iOS or Android, selecting web platforms excludes them.

1. Go to Audience, select Segments, and click Create Segment.
2. Click Add Filter and choose the Platform tag.
3. Add your target web platforms using the OR operator:
   • Platform equals Chrome
   • Platform equals Safari
   • Platform equals Firefox
4. Name the segment and click Save.

Exclude mobile platforms

This method directly excludes mobile users with negative match criteria.

1. Go to Audience, select Segments, and click Create Segment.
2. Click Add Filter and choose the Platform tag.
3. Set up the rules using the AND operator:
   • Platform is not iOS
   • Platform is not Android
4. Name the segment and click Save.

Why the segment size might be small

If you recently turned on the Platform tag, it does not apply to existing users automatically. The tag updates only when the SDK runs when a user opens your website.

To grow this segment faster, you can:

• Wait for regular traffic. The segment grows as subscribers visit your website.
• Send a push notification to your entire web subscriber list. When users click the notification and open your website, the SDK runs and updates their Platform tag.
• Upload a CSV file. Go to Audience, select Import CSV, choose Update Tag values, and upload a file with your users' Hardware IDs (HWIDs) and their browser platform values (such as Chrome, Safari, or Firefox).