The Industry’s Most Accurate Website Visitor ID to grow your flow revenue without damaging deliverability
We’ll go head-to-head with any anonymous website visitor identity provider to prove the difference accurate data makes for your marketing ROI
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Conversion Rate
Accuracy had significant impact on return on investment — we saw 4.6x revenue per ID using Customers.ai compared to the next best option.
Rob Varon, Director of Marketing
Revenue per ID
Fewer Spam Complains
We ran Opensend and Customers.ai side by side for a week with identical email flows, and Customers.ai performed vastly better in every way.
Anastasiya Vankova, Founder
Revenue
Accuracy Rate
Customers.AI proved to be the best visitor ID tech in the industry on both match rate and accuracy.
Dylan Menter, CEO
True Match Rate
Accuracy Rate
Customers.AI proved to be the best visitor ID tech in the industry on both match rate and accuracy.
Dylan Menter, CEO
True Match Rate
Most Visitor ID Providers Are 70-95% Wrong. Only Customers.AI Gets It Right.
By comparing visitor identity preditions to actual purchase data in tests by multiple brands, most popular visitor ID tools were found to be 70-95% wrong.*
Only Customers.ai delivered accurate preditions 65-85% of the time.
This difference amounts to higher revenue per ID, greater incremental lift in flow revenue, and 5x times lower spam reports.
What Other Website Visitor Tracking Tools Won’t Tell You
Testing by ecommerce brands conducted in January and February 2025 revealed significant website visitor data inaccuracy by popular providers. Read the full research and findings in the 2025 State of the Website Visitor Identification Industry Report.
Anonymous Website Visitor Identification Problems Resolved
 Customers.ai increases conversions and LTV through user journey transparency of both anonymous and known visitors with unbeatable accuracy.
Generate More Revenue
Visitor identity resolution that’s 65%-85% accurate
Increase store sales by converting anonymous or otherwise untrackable visitors into customers via email, ads and direct mail — without any low-quality match junk.
Total visitor transparency
Unlike other vendors, Customers.ai provides fully exposed visitors contact information and on-site behavior of existing subscribers and net-new anonymous visitors.
The Only Official Meta Business Partner
Acquisition teams rejoice when they realize that website visitor retargeting audiences are back on the menu, thanks to the only bonafide Meta Business Partner’s accurate visitor ID Meta audience sync tuned to convert the bottom of your funnel.
Stop Wasted Spend
Don’t Pay for False IDs
If you’re paying a website visitor ID tool per visitor identified, and 70%-95% of those visitor matches are wrong… well, you can do the math. Instead, make the switch to accurate visitor ID data that actually drives revenue.
Don’t Pay Klaviyo Active Profile Fees for Bad IDs
With Customers.ai’s 65%-85% accuracy, you won’t bloat your ESP, CDP or CRM with bad matches, fake contacts, and useless profiles — saving you from unnecessary hosting fees while ensuring your marketing budget goes toward real, high-intent customers.
Generate 15x Revenue Per ID
In real-world brand testing, Customers.ai’s visitor identification generated 15x more revenue per identified visitor compared to other providers. That’s the power of accurate data: fewer false positives, more real customers, and significantly higher ROI on every marketing dollar you spend.
Protect Your Brand
Reduce Spam Rate
When you are getting the right website visitor contact info, emails won’t be marked as spam, your domain won’t be penalized, and you won’t lose fire power on your critical email marketing channel. The difference between others’ spam rate and Customers.ai is 5x.
Utilize a Domain-Protective ESP
No visitor ID provider is 100% perfect — but only Customers.ai gives you a built-in safety net. Our identity resolution accuracy already outperforms the industry, but for the small margin of error, we provide an extra layer of protection: our native ESP. Send emails directly from Customers.ai, keeping your critical sender standing intact.
Never Look Clueless
Sending marketing emails and ads to the wrong audience doesn’t just waste budget — it hurts your brand. Customers.ai’s unmatched accuracy targets real high-intent visitors, preserving your brand while maximizing conversions.
Trusted by Brands That Demand Accurate Website Visitor Data
