The AARRR funnel, also known as the pirate funnel, is one of the most useful models for understanding how an eCommerce business grows. It doesn't just focus on attracting traffic or achieving one-off sales, but on analyzing the entire user journey: from when they discover your online store to when they buy, return, recommend, and generate profitable revenue.
In this article, we will look at what the AARRR funnel is, what its phases are, what metrics to measure, and how to apply it step-by-step in an online store. We will also see practical examples, common mistakes, and how to integrate it into an eCommerce growth marketing strategy.
What is the AARRR funnel and why it matters in eCommerce
The AARRR funnel is a growth framework for digital businesses that divides the relationship with the user into five phases: Acquisition, Activation, Retention, Referral, and Revenue. It is also known as pirate metrics because its acronym in English forms AARRR: Acquisition, Activation, Retention, Referral, and Revenue.
This model was popularized by Dave McClure and is used to analyze user behavior at each stage of the journey. Instead of just looking at the final sale, it allows for answering much more strategic questions:
- Acquisition: how do users arrive at your online store?
- Activation: what do they do when they arrive and when do they show real interest?
- Retention: do they return after the first visit or purchase?
- Referral: do they recommend your brand, leave reviews, or share your product?
- Revenue: does that behavior translate into profitable sales?
In eCommerce, this approach is especially useful because an online store doesn't just grow by selling more today. It grows when it manages to attract the right users, convert them better, make them return, build trust, and increase the profitability of each customer.
That's why the AARRR funnel fits so well into an eCommerce growth hacking strategy: it helps organize data, detect bottlenecks, and prioritize experiments with a real impact on the business.
What is the AARRR funnel used for in an online store
The main value of the AARRR funnel for eCommerce is that it allows you to understand where the real growth problem lies. Many brands think they need more traffic, when in reality the blockage could be in activation, retention, the shopping experience, or profitability.
For example, a store might have a lot of organic traffic but few sales. In that case, the problem isn't always acquisition. It could be in unconvincing product pages, lack of social proof, unclear pricing, a poor mobile experience, or a checkout process with too much friction.
Another store might have good initial purchases but a very low repurchase rate. In that case, it might not need to aggressively acquire more users, but rather work better on retention with email marketing, automations, personalized recommendations, or loyalty programs.
The AARRR funnel helps transition from an intuition-based strategy to a data-driven strategy. Instead of asking "what action should we take now?", it allows us to ask: which phase of the funnel should we improve first to generate more growth?
The 5 phases of the AARRR funnel applied to eCommerce
For the AARRR model to be truly useful, it must be adapted to the reality of an online store. It's not enough to know the phases; you need to know what each means, what metrics to measure, and what actions can improve results.
1. Acquisition: attracting qualified traffic, not just visits
The acquisition phase answers a key question: how do users discover your eCommerce?
This includes channels such as SEO, Google Ads, Meta Ads, TikTok Ads, social media, email acquisition, affiliate marketing, collaborations, marketplaces, digital PR, direct traffic, and brand searches.
But the goal isn't to attract just any traffic. The goal is to attract qualified traffic, that is, users who are genuinely interested in your category, your products, or your value proposition.
In SEO, for example, it's not the same to capture traffic with a highly informational post as it is to rank a collection, a transactional landing page, or a product page. Each type of URL fulfills a different function within the funnel. Therefore, relying on an SEO agency can help you prioritize which URLs should capture demand, which should convert, and how to connect them within the site's architecture.
Some actions to improve acquisition in eCommerce are:
- Optimize categories and collections for transactional searches.
- Create informational content that connects with the user's search intent.
- Work on paid campaigns focused on profitability, not just clicks.
- Improve organic CTR with more attractive titles and meta descriptions.
- Activate collaborations, affiliate marketing, or authoritative content.
- Strengthen acquisition from social media and emerging channels.
Recommended acquisition metrics:
- Sessions per channel.
- New users.
- Organic clicks.
- CTR in Google Search Console.
- Cost per click.
- Cost of acquisition.
- Traffic to categories and product pages.
- Assisted conversions by channel.
The important question isn't just how much traffic you have, but what traffic actually brings you closer to sales.
2. Activation: getting the user to experience their first moment of value
Activation occurs when the user does something that demonstrates real interest. In eCommerce, that first moment of value isn't always the purchase. It can happen much earlier.
Some examples of activation in an online store are:
- Viewing a product page.
- Adding a product to the cart.
- Using the internal search engine.
- Filtering a collection.
- Consulting a size guide.
- Subscribing to the newsletter.
- Initiating checkout.
- Saving a product to favorites.
- Configuring a personalized product.
This phase is critical because many stores manage to attract users, but fail to get them to progress. The user arrives, looks for a few seconds, and leaves. When this happens, the problem could be in the value proposition, navigation, speed, filters, images, text, price, trust, or CTA design.
Activation connects directly with CRO, UX, and analytics. Therefore, within a growth hacking and growth marketing strategy, it's not enough to capture traffic: you need to ensure that traffic quickly understands what you sell, why they should choose you, and what the next step is.
Some actions to improve activation are:
- Improve the clarity of product pages.
- Add reviews, ratings, or social proof.
- Optimize images, videos, and descriptions.
- Simplify navigation in categories.
- Improve filters and internal search.
- Work on more visible and concrete CTAs.
- Reduce friction on mobile.
- Optimize the checkout, especially if you work with Shopify.
3. Retention: getting the customer to return
Retention measures whether users or customers return after the first visit, interaction, or purchase. In eCommerce, this phase can make the difference between a store that always depends on acquiring new customers and a brand that builds a base of recurring customers.
Many online stores invest a large part of their budget in acquisition, but neglect what happens after the first purchase. However, if a customer has already trusted your brand, you have a huge opportunity to continue providing them with value.
Retention can be worked on with post-purchase email marketing flows, personalized automations, product recommendations, loyalty programs, campaigns for recurring customers, remarketing, useful content after purchase, and replenishment reminders.
Tools like Klaviyo can help create more personalized flows, segment customers, and improve the relationship with the user after the first purchase.
4. Referral: turning customers into advocates
The referral phase measures whether your customers recommend your brand, leave reviews, share content, or help attract new users.
In eCommerce, this phase is especially important because trust greatly influences the purchase decision. A user who arrives through a recommendation, a review, or content generated by other customers usually has fewer barriers than one who discovers the brand for the first time.
5. Revenue: selling more, but above all, selling better
The revenue phase analyzes how user behavior translates into profitable sales. This part of the funnel should not be limited to measuring turnover. In growth, selling more does not always mean growing better.
You can also review these growth hacking strategies for eCommerce if you want to detect quick improvements in the activation, conversion, and revenue phases.
How to apply the AARRR funnel step-by-step in your eCommerce
Step 1. Define what each phase means in your online store
Each eCommerce has a different customer journey. Therefore, before measuring, define what each phase represents in your business.
Step 2. Choose a main metric per phase
One of the most common mistakes is trying to measure everything from the beginning. It's better to choose one main metric per phase and a few secondary ones.
Step 3. Create a growth dashboard
The AARRR funnel works best when you can visualize all phases in the same system. It doesn't have to be complex from day one, but it should allow you to understand what is happening.
Step 4. Detect the biggest bottleneck
Once you have the data, it's time to identify where the main blockage is. It's not always convenient to act on all phases at once. The most efficient approach is to prioritize where the impact can be greatest.
Step 5. Launch experiments and measure learnings
The AARRR funnel doesn't end with analysis. The most important part is turning data into experiments.
This way of working is what differentiates a growth strategy from a list of isolated actions. If you need a clearer methodology to organize hypotheses, data, and actions, a growth hacking agency can help you detect opportunities and turn them into measurable experiments.
How a growth marketing agency can help you implement the AARRR funnel
Applying the AARRR funnel isn't just about creating a table with five phases. It requires analytics, strategy, experimentation, and the ability to connect different channels.
A growth marketing agency can help you audit your eCommerce's complete funnel, detect bottlenecks, prioritize experiments, and scale the actions that truly work.
Additionally, if you want to better understand when it makes sense to seek external support, you can read our article on what a growth hacking agency does and what it can contribute to a digital growth strategy.
At Webmefy, we approach growth with a connected vision: SEO, Paid Media, CRO, analytics, automation, and eCommerce strategy. Because growing doesn't mean doing more actions, but finding which levers have the most impact and turning them into a measurable system.
If your store is built on Shopify, you can also expand this strategy with our article on growth hacking for Shopify or rely on a Shopify agency that connects technology, SEO, CRO, and business growth.
