The only Website Visitor ID solution built to protect your brand
Keep your third-party data compliant, protect your deliverability, and lower your ESP contact costs with Customers.ai .
Third-Party Data & Your ESP
Strict compliance rules and inaccurate data can lead to serious deliverability issues, making it risky to send third-party data directly to your ESP. That’s why we built the Customers.ai ESP.
Think of Customers.ai as your pre-ESP bouncer. We’ll filter out the tire-kickers, warm up high-intent contacts, and only send your ESP the ones worth hosting.


Want to ensure your third-party data is 100% compliant? Let us do the emailing for you. Third-party contacts will only be added to your ESP when they purchase or give you their information, making them first-party contacts, and ensuring 100% compliance.
Identity is core to Blotout. We tested multiple data providers, and Customers.AI was the clear leader—superior accuracy, higher match rates, and real value. Most others performed extremely poorly in our testing and provided no observable incremental value.


We work alongside your ESP, cutting costs and protecting your brand
- Protect Your Deliverability
- ESP Interoperability
- Cut Klaviyo Costs
- Engage X-Ray Contacts Separately
- Superpower Your Segmentations
- Build Beautiful Emails
- Engage Website Visitors at Scale
Guard your sender reputation and ensure your emails reach the inbox, not the spam folder.
We support existing ESPs and recommend using Customers.ai alongside of, or in place of, your ESP for website visitor identification data.
Website Visitor ID tools generate +10x more emails but also +10x your Klaviyo bill. Save money by keeping your third-party data directly in Customers.ai
Keep your previously anonymous visitor email automations separate. Push contacts to your other ESP when they take a qualifying action or only when they become a paying customer.
Utilize the powerful customer journey and consumer data to segment and power your automations.
Design beautiful, high-impact emails effortlessly that captivate and convert your audience.
Reach and convert website visitors with personalized messaging at scale.
Powering Fast-Growing Ecommerce Brands

Customers.ai is capturing emails and sending cart and browse abandonment emails for people that we do not have in our database. Couldn’t ask for better support! The additional revenue and 5x ROAS is also amazing.
ROAS
Return on investment
Brad Solomon
Co-founder, Prana Pets

Customers.ai identified visitors are coming back, opening and clicking and purchasing. And also really exciting, there’s a faster sales cycle there.
Visitors revealed in 3 months
Return on investment
Dominick Sandri
DV8 Offroad

Customers.ai has given us a massive influx of warm leads. It’s made our email process like shooting fish in a barrel. The tools have given us the confidence that our emails can accomplish whatever goal we have for them.
Revenue from Email
Email Revenue in 45 Days

Nick Betts
Marketing Director, Agile Offroad

We did a trial between Customers.ai and some other guys and went with Customers.ai. We’re happy and getting a good return on investment and have a good-sized new lead base.
Visitors revealed in 3 months
Return on investment

Steve Shelley
Senior Product Manager, Cove Smart

in Attributable Email Revenue
Return on Investment

Heather B
VP of Marketing, Online Toy Retailer
Key Features
Customers.ai is more than email capture. We track the entire customer journey, allow for advanced segmentation, and help you build flows that drive sales, all while keeping your third-party data ESP compliant.
Key Features

- Much cheaper than Klaviyo and MailChimp
- Includes 10 email sends per contact
- Unlimited email automations
- Unlimited email campaigns
- Unlimited email aliases
- Email deliverability tools
- Email warmup
- Automation builder
- Email design tool
- AI email customizer
- CRM integration
- Analytics & Reporting
The Customers.ai ESP is the most cost-effective way to manage your visitor ID contacts
Want to email your visitor ID contacts through the Customers.ai platform? We give you 10 emails per contact, lower than most ESPs.


100% privacy law compliant technology
We safely and securely encrypt visitor data before sending to any platforms, ensuring data is safe and eliminating any privacy issues.
Kineon + Customers.ai = Real Results
$127.7K
Customers.ai contact purchase value
312
Number of purchases
576%
ROI
In just over 30 days, Kineon generated an additional $15.7K in revenue through targeted email campaigns, achieving a 576% ROI. Thanks to Customers.ai capturing high-intent visitors, Kineon was able to convert those leads into real revenue.

Book a Call
See how our domain-protective ESP is designed for growth and performance for your brand.
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