DNS setup

Prism tracks through a subdomain of your domain — usually track.yourdomain.com. This is what makes it first-party: the tracking endpoint and its cookies belong to your site, not a third-party ad domain.

The record

Create one CNAME record with your DNS provider:

Field	Value
Type	CNAME
Host / Name	track (some providers want the full track.yourdomain.com)
Target / Value / Points to	prism.ad-prism.xyz
TTL	Default (or 300)

Provider notes

• Cloudflare — set the record to DNS only (grey cloud). A proxied (orange cloud) record will break SSL certificate issuance for the tracking hostname.
• GoDaddy / Namecheap / Google Domains — enter just track in the host field; the provider appends your domain automatically.
• Squarespace / Wix DNS — both support CNAME records under DNS settings; same host/target values.

What happens next

Once the CNAME is live, Prism automatically issues an SSL certificate for track.yourdomain.com (this typically completes within minutes of DNS propagating). The dashboard's setup card flips DNS configured to green when the hostname resolves and routes into Prism.

Worth knowing: your CNAME is one half of the setup. The other half is your agency registering that hostname on the tracking network, and the two can complete in either order. If you add the record and the subdomain still returns an error page, that usually means the second half needs a nudge — not that your record is wrong. Troubleshooting shows how to tell in one request, and when to escalate instead of editing DNS again.

FAQ

Does this affect my website or email? No. The record only creates the new track subdomain. It doesn't touch your root domain, www, or MX records.

Can I use a different subdomain name? Yes — t, data, insights, anything. Tell your agency before they provision the client in Adsidian, since the subdomain is baked into your snippet URL.

How long does propagation take? Usually under 5 minutes. Some resolvers cache aggressively; allow up to an hour before troubleshooting.

My record points to prism.binarybloom.dev, not prism.ad-prism.xyz — is that a problem? No. Setups configured before August 2026 point at prism.binarybloom.dev, which remains fully supported. No DNS change is needed for existing installations — prism.ad-prism.xyz is only the target for new setups.