Cookieless Personalization
Without Limits powers personalization and relevance throughout your entire customer journey to automatically grow sales across site search, product recommendations, emails, social media & ads. Automatically Grow Sales.

g2 rating logo
score, +115 reviews
score, +16 reviews
young female in white jumper on mobile phone looking at e-commerce sitese-commerce store screen showing brown top for sale online

Let us help you grow your sales automatically analyzes behavior, trends, and transactions to present powerful real-time search results, recommendations, content, and insights that grow sales 15-30%.

Increase in
order value
More likely
to convert
* Real averages across all e-commerce stores using vs. those who didn’t within the same quarter. beat our previous vendor by 143% in additional revenue.
filip domagala profile image in circle

Filip Domagala

CEO, Unisport


Personalized omnichannel shopping experiences made easy

Provide 1:1 personalization and relevance throughout the entire shopping journey recommendation platform representation showing trainers in yellow and reocmmendation snippets

Increase basket size with smart Recommendations

Automatically show your visitors the products they are most likely to buy with our state-of-the-art personalization engine using artificial intelligence to instantly match products and people.

Correct results from day 1 with pre-built recommendation logics.

Customize to your business needs with filters and rules.

Instantly adapts to new trends and seasonality. audience platform representation showing profile images with lines between them

Target and grow your ideal customer base

Powerful and easy-to-use segmentation helps you find the perfect product for your audiences. Uncover new profitable audiences and present them with an offer you know they'll love - all with the click of a button.

Instant segmentation with keywords and simple filters.

Build targeted audiences using lifecycle and lifetime value.

Create omnichannel experiences with ESP, CRM, Ad & Social integrations.

Build on a next generation platform is built to scale your business with the best AI technology on the market with powerful analytics, actionable insights and a fully customizable solution to grow across all channels

Next-gen personalization AI

ClerkCore™ is our proprietary personalization technology with an algorithm specifically designed for and tailored to the needs of the modern e-commerce store.

Customer Data Platform

Create a single source of marketing truth by connecting multiple data sources to centralize your segmentation and audience creation that delivers successful and personalized omnichannel experiences.


Control the shopping experience with tailored recommendations using custom merchandising rules across your site, in categories or single presentations.

Customer analytics & insights

Get full 360° insights with customer profiles and individual journeys from their first click to conversion, and beyond. View valuable segments based on behavior and order history including frequency of purchase, life cycle, and price sensitivity.


Personalization that respects your customers' privacy

Today, your customers expect privacy.

This has traditionally been at odds with the core of personalization, where the norm has been to closely monitor customers to provide a personalized experience.

But not anymore!

Clerk has been built from the ground up with a privacy-first mindset.

With our breakthrough technology, we are able to offer the personalized shopping experience your customers expect, without any limitations.

As the first in the world, we can do this without using cookies and in a fully GDPR-compliant manner - thus fully respecting your customers' privacy.

cookieless e-commerce platform with mockuip showing how this works with and snippets

We deliver the world's best customer service

From onboarding, to quick tips and strategic advice, we are ready to help, whether it's 1-on-1 calls, webinars, email, live chat, guides or our large help center.



98% Customer Satisfaction 😍

99.9996% uptime the last 12 months ️🔥

Unlimited Free & Fast Support ⚡

We Speak 🇺🇸 🇬🇧 🇮🇹 🇪🇸 🇳🇱 🇳🇴 🇸🇪 🇩🇰


There are the companies that you have to work with, and then there are those who you love to work with. definitely belongs to the latter.

Bülent Erdogan

Cannot rate these guys highly enough! A lot of companies could learn a lot from!

Steve Allday

The support staff are some of the best anywhere and are always quick and happy to help with any queries. They are also pro-active with clients, helping them to get the absolute best out of the service. Highly recommend.

Richie B

We've used since the beginning of 2015 and there is no question about it, is one of our secret weapons. Their support, service and know-how continue to amaze us!

Nick Dam Jørgensen

Customer support is excellent – always a fast response and issues quickly resolved.

Kathryn Tye

It's automated, increases revenue and the support is fantastic. I am a fan!

Kasper Mølgaard-Nielsen

Powerful integrations with your favorite platforms

We're best friends with your e-commerce, marketing, CRM, and ad platforms.

What are tomorrow's trends? Learn from us

Powering thousands of stores and $7+ billion in transactions provides us with a lot of insights.