There’s a huge privacy shift happening right now. Starting from GDPR and CCPA to iOS updates to Google deprecating cookies now, there’s a severe limit to the data that can be tracked.
With reduced browser tracking, brands only have an abstruse picture of who their audience is. Numbers turn into approximations and our ability to rely on past data collection methods are no longer effective.
As first-party data is no longer a reliable option for customer segmentation, there’s an increased need to collect zero-party data–the data that a visitor shares voluntarily.
Brands need this data to understand their audience and be relevant in their messaging. This will help you build a complete profile on your shoppers and allow you to personalize their buying journey.
In 2026, zero-party data collection has become the single biggest competitive advantage an e-commerce brand can have. Third-party cookies are no longer a dependable source of audience insight, and privacy regulations are only getting stricter. Brands that know how to collect zero party data in a structured way consistently outperform those that are still guessing who their audience is.
Examples of 0P data
There’s no one-size-fits-all when it comes to what kind of 0P data to collect for your store. You need to ask what you’re trying to accomplish with that data–are you trying to personalize their journey or are you trying to identify patterns.
Here are some examples of zero-party data:
- Interests
- Product Interests
- Preferences
- Birthday or anniversary information
- Goals and objectives
- When they’re ready to buy
If you 0P data by industry, download this PDF. You’ll find what kind of data to collect for different industries.
The most valuable zero-party data in 2026 goes beyond names and birthdays. Purchase timing signals, product interest rankings, and self-reported goals give you actionable insight for every stage of the customer journey. This is the kind of data that helps you personalize from the very first visit all the way to repeat purchase.
Cut your email marketing bill by 67%
No limits on contacts. Pay only for what you use.
How to collect 0P data
There are several ways you can collect 0P data, progressively profiling a customer throughout their journey. Let’s take a look at some.
Opt-in Popups
Popups, flyouts, or embedded forms are one of the best ways to collect 0P data. Most eCom brands stop with just Name and Email+Phone Number.
But, this part of the customer journey is ripe for getting a ton of additional data that signal buying intent as well as help you build a robust customer profile. Most brands focus on asking for more personal details, names and birthdays, and that’s just it.
A name, birthday, or other like information is not a buying signal. These details enrich a customer’s profile but do not give insights into the buying intent or serve to improve the customer journey. Get a mix of data that’s both actionable when applied to other aspects of your business and augments the customer journey.
Here are a few questions you can ask during this stage:
- What products/collections are you interested in?
- When are you looking to purchase?
- What’s your shopping preferences?
- Are you purchasing for yourself or someone else?
- What’s your #1 goal or problem you’re trying to solve?
The key is to not go overboard with a lot of questions, or you risk them leaving the form incomplete. Of late, I love the multi-step form approach where you get micro commitments and progressively fill in the details. Like this 👇
Brands that ask the right questions in their popups see a big difference in how well their follow-up emails perform. Nakie, an outdoor lifestyle brand, switched from a basic discount popup to a multi-step popup that asked visitors about their interests first.
Their email opt-in rate went from 5-6% up to 28% and they brought in over $5.8M in attributed sales, simply because their emails were now based on what each subscriber actually told them they cared about.
Pre-purchase Quizzes
Quizzes are pre-intent actions. They’re best used at the stage when a visitor is curious about your brand or the products you sell but they’re not ready to buy yet.
Let’s take our good ol’ hipster coffee brand for example.
They can set up a quiz that helps shoppers choose the perfect coffee. They can ask questions like roast preferences (light, medium, dark), if they like it bitter, how much caffeine they like, etc.
The data from quizzes help you understand a potential buyer’s motivations, goals, and preferences. When used to inform your marketing strategy, this will help you create a better, more personalized shopping experience. You can send them relevant information and recommend the right products.
Product quizzes convert 7 to 25% of participants into buyers, compared to the 2 to 4% average ecommerce conversion rate. On top of that, customers who complete a quiz show 47% higher average order value than those who do not. If you are not using quizzes yet, you are leaving a lot of revenue on the table.
Post-Checkout
The Thank you/Order Confirmation page is prime real estate for getting answers to a few quick questions. You can ask them to rate their buying experience, why they chose your brand, what other products they’re interested in, etc.
Remember, the shoppers hasn’t used your product yet and likely brimming with buyers’ remorse. Your quiz/survey/popup needs to assuage their fears and reaffirm it’s the right choice.
The kind of questions you ask needs to help you create a personalized post-purchase experience. It also varies for each niche.
Here are some for you to draw inspiration from:
- How would you rate your purchasing experience?
- What are your expectations regarding the product?
- How did you learn about our product?
- What factors influenced your decision to purchase from us?
- Did you consider any alternative products before choosing ours?
- Do you feel the price of the product is fair?
Studies suggest that 73% of consumers are willing to share personal data when they feel they are getting something valuable in return. The post-checkout moment is an ideal time to ask, as the buyer remains engaged and the experience is still fresh in their mind. Keep it short and make it feel like a natural part of the experience.
Post-purchase surveys
Once a shopper has received their order and had the time to use the product for a while, you can follow-up on your previous survey. You can collect various types of zero-party data to gain insights into their experiences and preferences like product usage habits, satisfaction, product effectiveness and more.
All these data points that will help you drive repeat purchases.
Questions you can ask:
- Would you consider purchasing from us again in the future?
- Would you recommend our product to others?
- How often do you use the product?
- On a scale of 1-10, how satisfied are you with the product?
- Has the product delivered the expected results?
- What aspects of the product do you like the most?
Again, just like the post-checkout survey, you need to know what you’re trying to achieve by asking these questions.
Post-purchase surveys are one of the most underused tools for building accurate customer profiles. Data suggests that only 16% of marketers actively collect and use zero-party data right now. That means the brands already doing it have a real head start on everyone else.
Cut your email marketing bill by 67%
No limits on contacts. Pay only for what you use.
Email Flows
Your Welcome email, to abandoned carts, to win-back sequences–can all be personalized with 0P data as well as be used to gather more data. It’s a perpetual engine when used correctly.
Let’s take the abandoned cart flow for a fictitious melatonin roll-on brand, for example.
The first two emails are gonna be straightforward–reminding them that they have left items in their cart. The third email can ask the shopper what other solutions they’ve tried (with options like sleeping pills, other brands, Pain relief medication, nothing).
They can then use this data to personalize the next email in the AC sequence.
Sleeping pills -> Sleeping pill side effects
Other brands -> Brand Comparison
Pain relief medication -> Yoga stretches before bed
Nothing -> Benefits of the roll on
Most brands just send emails and hope for the best. When you use your flows to collect data at the same time, every email becomes smarter than the last. According to Klaviyo’s 2025 Future of Consumer Marketing Report, 74% of consumers expect brands to provide more personalized experiences, and flows that ask questions are one of the simplest ways to get there.
Contests and Giveaways
I’m not a huge fan of these because you attract a lot of people who’d never buy anything from you. The amount of junk data you’d receive will mire your actual data. But again, what do I know?! Try and let me know.
As we move toward a privacy-first web, the only differentiator between a great brand and a good brand will be how well they collect 0P data and how well they use it. With progressive profiling, comes a deeper understanding of your audience and you’ll be in a better position to deliver amazing shopping experiences. Ultimately that’s what every shopper wants.
The low barrier to entry with contests means you will likely attract people who want a freebie but have no real intention of buying from you. A big list with low intent is harder to work with than a smaller list of people who actually care about your brand. Quality of data will always matter more than the size of your list.
How to Use Zero Party Data Once You Have Collected It
Collecting the data is only half the job. The real value comes from putting it to work. The first thing to do is use stated preferences to personalize your email If someone says they want skincare for dry skin, every email should reflect that.
The second is to segment your audience by purchase intent signals. Someone who said they are ready to buy in the next week needs a very different message than someone who is just browsing.
The third is to feed quiz and survey responses into your product recommendation engine so that every suggestion feels handpicked. Unactivated data is wasted data.
The brands winning in 2026 are the ones that close the gap between collection and action as fast as possible.
Conclusion
As the privacy-first web becomes the standard in 2026, zero-party data is no longer optional. It is the foundation of good segmentation and personalization for any e-commerce brand.
The old ways of tracking and guessing are getting less reliable by the day, and the brands still depending on them are going to feel it. The good news is that getting started is simple.
Pick one collection method, a quiz or an opt-in pop-up, build it properly, and start learning from the data it brings in.
From there, layer in more methods as your strategy grows. If you want help building a zero-party data strategy that actually works for your store, our team is ready to help you get started.
FAQs
What is zero party data and why does it matter in 2026?
Zero-party data is information a customer willingly shares with a brand, like their product preferences, shopping goals, or when they plan to buy. It is not like third-party data, which does not rely on tracking or cookies. In 2026, privacy regulations are getting stricter, and tracking is becoming less reliable. So this is one of the few data sources brands can fully trust and act on.
How do ecommerce brands collect zero party data?
The most common ways are opt-in popups, pre-purchase quizzes, post-checkout surveys, post-purchase follow-ups, and questions built into email flows. Each method works best at a different stage of the customer journey. The key is to ask the right questions at the right time and make it clear what the customer gets in return for sharing.
What is the difference between zero party data and first party data?
First party data is collected by watching what customers do, like their browsing history, purchase records, and clicks. Zero party data is what customers tell you directly through quizzes, surveys, or forms. Zero party data is more accurate because it comes straight from the customer with no guessing involved.
How do brands use zero party data for better segmentation?
Brands use it to group customers based on what they have actually said, like their interests, goals, and when they plan to buy. This makes segments far more accurate than grouping people by behavior alone. When your emails are built on what customers told you directly, they feel more relevant and are far more likely to convert.