Inbox Placement Tester
A/B test your email copy to see which version gets the best inbox placement. Send to our seed list and get real placement data across Gmail and Google Workspace.
How It Works
Create Variations
Add up to 3 subject line and body variations to test
Copy Seed List
Get our 15 Gmail and Workspace test addresses
Send Your Emails
Send each variation with its unique test code
Check Results
See inbox, spam, and promotions rates
Your Tests
Loading your tests...
8 Gmail Personal
Consumer Gmail accounts
Test delivery to personal Gmail accounts where promotional emails often go to the Promotions tab.
7 Google Workspace
Business email accounts
Test delivery to business accounts which often have different spam filtering rules.
Placement Categories
Primary
Best outcome
Inbox
Good outcome
Promotions
Common for marketing
Spam
Needs improvement
Why Test Inbox Placement?
Email deliverability is crucial for your campaigns. Even small changes to your subject line or content can mean the difference between landing in the inbox or spam folder. Our A/B testing tool helps you find what works before sending to your real list.
Tips for Better Inbox Placement
- Avoid spam trigger words in subject lines
- Use a consistent sender name and email address
- Include a plain text version of your email
- Don't use too many images or links
- Make sure your SPF, DKIM, and DMARC are properly configured
- Warm up new sending domains gradually