Multi-Site Setup

Track multiple websites from a single Once Analytics installation. Choose between shared tracking (simple) or isolated tracking (separate dashboards).

Overview

There are two ways to track multiple sites:

Approach	Setup	Data	Dashboard	Best For
Shared	Simple	Combined, filterable	Single	Related sites, portfolios
Isolated	Per-site DNS	Completely separate	Per-site	Unrelated sites, client work

Option 1: Shared tracking

The simple approach — use one tracking script across all your sites.

How it works

Add additional hostnames in Settings
Use the same tracking script URL on all sites
Data is stored with each site's hostname
Filter by site in the dashboard

Setup

Step 1: Add hostnames in Settings

Go to your dashboard at stats.yoursite.com/dashboard
Click Settings (gear icon)
Find Additional Hostnames
Add each site you want to track (e.g., site-b.com, site-c.com)
Click Save

Note: Your main instance URL (e.g., yoursite.com) is tracked by default. You only need to add additional hostnames.

Step 2: Add tracking script to all sites

Add the same script to all your sites:

html

<!-- On site-a.com (default, no setup needed) -->
<script defer src="https://stats.yoursite.com/script.js"></script>

<!-- On site-b.com (add to Settings first) -->
<script defer src="https://stats.yoursite.com/script.js"></script>

<!-- On site-c.com (add to Settings first) -->
<script defer src="https://stats.yoursite.com/script.js"></script>

Viewing data

Go to your dashboard at stats.yoursite.com/dashboard
Click the Site filter
Select which site to view

You can also view combined data across all sites.

Tip: This is the easiest approach for tracking a portfolio of related sites, side projects, or sites you manage together.

Pros & cons

Pros:

Zero additional setup
Single dashboard for everything
Easy to compare sites

Cons:

Shared request/error logs in Cloudflare
All sites visible in one dashboard
Same authentication for all sites

Option 2: Isolated tracking

The separated approach — each site gets its own subdomain, dashboard, and logs.

How it works

Create a DNS record and route for each site
Each site has its own tracking URL
Completely separate dashboards and data

Setup

For each new site, add a DNS record and Worker route:

Step 1: Add DNS record

Go to Cloudflare Dashboard → DNS
Select the zone for your new site
Add an AAAA record:
- Name: stats (or your preferred subdomain)
- IPv6: 100:: (placeholder for Workers)
- Proxy: On (orange cloud)

Step 2: Add Worker route

Go to Cloudflare Dashboard → Workers & Pages
Select your Once Analytics worker
Go to Settings → Domains & Routes
Click Add → Route
Enter: stats.newsite.com/*
Select your Once Analytics worker

Step 3: Add tracking script

html

<!-- On newsite.com -->
<script defer src="https://stats.newsite.com/script.js"></script>

Step 4: Access dashboard

Visit https://stats.newsite.com/dashboard

Pros & cons

Pros:

Completely isolated data
Separate Cloudflare logs per site
Independent dashboards
Can share access to specific sites

Cons:

Manual DNS/route setup per site
Multiple dashboard URLs to manage
Same PIN/Access policy applies to all

Which option to choose

Scenario	Recommendation
Personal projects & side sites	Shared — easier to manage
Client websites	Isolated — separate access & logs
Company properties	Shared — unified view
White-label / reselling	Isolated — complete separation
Testing & staging	Shared — filter by hostname

Note: You can mix both approaches. Use shared tracking for your own sites and isolated tracking for client projects.

Different Cloudflare accounts

If your sites are on different Cloudflare accounts, you'll need separate Once Analytics installations for each account.

Each installation requires:

Its own purchase/license
Its own Worker and D1 database
Its own API token during setup

Tip: If you manage multiple client sites, consider having clients add your Cloudflare account as an administrator to their zone, allowing you to use a single installation.

Questions? Email hello@onceanalytics.com