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First‑Party Durability

Custom Tracking Domains

Use your own tracking subdomain to strengthen first‑party attribution, improve persistence, and reduce data loss from blockers and browser limits.

Custom domain configuration and benefits

Key Benefits

Everything you need to know about this feature

Your Own Subdomain

Use a subdomain like data.yoursite.com, or track.yoursite.com, for tracking.

2-Year Cookie Lifespan

First-party cookies last 730 days vs 7 days for third-party cookies. Track full customer lifecycle.

Browser-Proof Reliability

First-party domains are trusted by all browsers and never blocked by privacy features.

Easy 5-Minute Setup

Just add a CNAME record to your DNS. We provide step-by-step instructions.

How It Works

Get started in minutes with our simple setup process

1. Choose Subdomain

Pick a subdomain like data.yoursite.com. It can be anything you want.

2. Add CNAME Record

Add one CNAME record in your DNS pointing to SignalBridge servers.

3. Verify & Track

We automatically verify your domain and issue an SSL certificate.

Why Custom Domains Are Critical

The web is moving away from third-party cookies. Safari's Intelligent Tracking Prevention (ITP) limits third-party cookies to 7 days. First-party cookies from your own domain are one of the only reliable way to track users long-term.

First-Party vs Third-Party

The difference is trusted identity.

Third-Party Cookies
  • ✕ 7-day lifespan on Safari (ITP)
  • ✕ Blocked by Firefox & Brave
  • ✕ Blocked by Ad Blockers
  • ✕ Phased out in Chrome
  • ✕ Poor attribution accuracy
First-Party Cookies
  • ✓ 2-Year (730 days) lifespan
  • ✓ Trusted by all browsers
  • ✓ Resistant to Ad Blockers
  • ✓ Future-proof technology
  • ✓ Reliable Attribution accuracy

How It Works

yoursite.com
User visits site
data.yoursite.com
SignalBridge via Subdomain
First-Party Cookie
Trusted & Secure

Because the tracking request goes to a subdomain of your own site (data.yoursite.com), browsers treat it as "first-party" - belonging to you. This unlocks long-term storage privileges.

Setup In 3 Steps

1

Choose Subdomain

Pick something like data.yoursite.com or track.yoursite.com

2

Add CNAME

Add a CNAME record pointing your subdomain (e.g. `data`) to `pixel.signalbridgedata.com`

CNAME   data   pixel.signalbridgedata.com
3

Verify

We detect the record, issue an SSL certificate, and you're live!

Enterprise-Grade Infrastructure

Automatic SSL
Free Let's Encrypt certificates managed for you.
Global CDN
Served from edge locations worldwide for low latency.
HTTP/2 Support
Modern protocol for maximum performance.
GDPR compliant
Privacy-first architecture.

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"SignalBridge helped us secure and future-proof our tracking using custom domains and first-party cookies. By running cookies on our own subdomain, we extended their lifespan to up to two years, compared to the standard 7 days under Apple's tracking prevention. This had a huge impact on attribution accuracy and long-term data reliability."
Stuart M.
Stuart M.
Technical Marketing Lead

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