4 min read

Custom Tracking Domain

Use your own domain for tracking links to improve deliverability and brand consistency.

What is a Custom Tracking Domain?

When you enable link tracking in your campaigns, Outlio replaces your links with tracking links to monitor clicks. By default, these links use a shared tracking domain.

A custom tracking domain lets you use your own subdomain (like track.yourdomain.com) instead of a shared domain. This has several benefits:

Better deliverability - Tracking links match your sending domain, appearing more legitimate

Brand consistency - Recipients see your domain in links, not a third-party domain

Avoid blocklists - Shared domains can be flagged; your own domain is under your control

How It Works

Without custom tracking:

https://tracking.shared-domain.com/click/abc123

With custom tracking:

https://track.yourdomain.com/click/abc123

Setup Steps

1

Choose a Subdomain

Pick a subdomain on your sending domain. Common choices:

  • track.yourdomain.com
  • click.yourdomain.com
  • go.yourdomain.com
  • t.yourdomain.com
2

Add a CNAME Record

Add the following CNAME record at your domain registrar:

CNAME

track

Or your chosen subdomain (click, go, etc.)

tracking.outlio.com

Auto (or 3600)

3

Enable in Outlio

After adding the DNS record (allow up to 1 hour for propagation):

  1. 1. Go to Email Accounts
  2. 2. Click on your email account to open settings
  3. 3. Scroll to Custom Tracking Domain
  4. 4. Check "Enable custom tracking domain"
  5. 5. Enter your subdomain (e.g., track.yourdomain.com)
  6. 6. Click Save

Adding CNAME by Provider

Cloudflare

1. Log in to Cloudflare and select your domain

2. Go to DNSRecords

3. Click Add record

4. Type: CNAME

5. Name: track

6. Target: tracking.outlio.com

7. Proxy status: DNS only (gray cloud)

8. Click Save

Namecheap

1. Log in to Namecheap

2. Go to Domain ListManage

3. Click Advanced DNS

4. Click Add New Record

5. Type: CNAME Record

6. Host: track

7. Value: tracking.outlio.com

8. TTL: Automatic

9. Click the checkmark to save

GoDaddy

1. Log in to GoDaddy

2. Go to My ProductsDNS

3. Click Add in the Records section

4. Type: CNAME

5. Name: track

6. Value: tracking.outlio.com

7. TTL: 1 Hour

8. Click Save

Important Notes

  • • Use the same domain as your sending email for best results
  • • DNS changes can take up to 48 hours to propagate (usually faster)
  • • If using Cloudflare, make sure proxy is disabled (gray cloud)
  • • Each email account can have its own custom tracking domain

Troubleshooting

Tracking domain not working

Check the following:

  • DNS record is set up correctly with exact values
  • Wait at least 1 hour for DNS propagation
  • If using Cloudflare, proxy must be disabled
  • Verify the subdomain matches what you entered in Outlio
Links still show old tracking domain
The custom tracking domain only applies to new emails sent after enabling it. Previously sent emails will continue to use the old tracking domain.

Next Steps

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