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INSTALL TRACKING

Use a first-party tracking domain

Serve the Adsu pixel from a verified subdomain of your own site.

Updated August 2026·2 min read

A first-party tracking domain lets the snippet load from a subdomain you control. Adsu uses it only after DNS is verified and the host is confirmed to serve the tracking script over HTTPS.

Add the domain

  1. 01

    Choose a subdomain

    Use a dedicated hostname such as track.yourgym.com; do not replace an existing website or mail hostname.

  2. 02

    Add it in Adsu

    Open Tracking → Domains and enter the hostname.

    Open tracking domains
  3. 03

    Create the DNS record

    At your DNS provider, add the CNAME target shown by Adsu exactly as written.

  4. 04

    Verify and wait for serving

    DNS verification proves the record. Serving live additionally proves the HTTPS host can deliver track.js.

When the snippet changes

Adsu prefers a first-party host only after it is verified and serving live. Until then, both the script source and beacon endpoint remain on https://app.adsu.ai. They always change together.