AI customer segmentation for e-commerce

Engagement Segments: Openers vs Clickers and Why They Split

Your engaged segment has two kinds of people in it: the ones who open and the ones who click. They are not the same audience, and mailing them the same way wastes both.

Klaviyo defines an engaged segment as subscribers who can receive email and opened or clicked in the last 30 days, or subscribed in the last 15. The clickers are the valuable half: Klaviyo's 2026 benchmarks put campaign clicks at 1.69 percent against 31 percent opens, and opens are inflated by Apple Mail Privacy Protection, so the split matters.

The engaged segment, and the two halves inside it

Klaviyo's engaged segment is simple: the subscriber can receive email marketing, and they opened or clicked in the last 30 days, or they subscribed in the last 15 days. That definition holds two very different people. The opener opened the email, which may mean they read it, or may mean Apple Mail preloaded the tracking pixel while they deleted it unread. The clicker clicked a link, which means they did something on purpose.

The two halves behave differently, and they should be mailed differently. The clicker is a buyer in waiting: they showed interest in a product, a category, or an offer, and the next email should follow that interest. The opener is a reader: they are still paying attention, but they have not told you what they want yet, and the next email should give them a reason to click.

Why opens stopped meaning what they meant

Apple Mail Privacy Protection, introduced with iOS 15 in 2021, preloads tracking pixels, so an open gets recorded whether or not the person read the email. Around 64 percent of B2C subscribers use Apple Mail, which means the majority of the list is affected. The open rate went up across the industry, and the meaning of the open went down with it.

The practical effect is a segment that looks healthier than it is. A subscriber who never opens anything still counts as engaged if Apple Mail preloads the pixel, and the campaigns sent to that segment look like they perform. The fix is not to stop measuring opens, it is to stop trusting them as the definition of engagement.

What the benchmarks say about the split

Klaviyo's 2026 benchmarks, drawn from more than 183,000 brands, put the campaign average open rate at 31 percent and the click rate at 1.69 percent. The top 10 percent of brands reach 45.1 percent opens and 3.38 percent clicks. Flows do better on clicks, at 5.58 percent on average, because they are triggered by behavior rather than sent to a list.

The gap between 31 percent and 1.69 percent is the split in numbers. For every hundred subscribers, thirty-one open and fewer than two click. The two who click are the segment worth building campaigns around. The twenty-nine who only open are worth a different kind of mail: shorter, sharper, and designed to earn the click.

Mailing the clickers differently

Split the engaged segment into openers and clickers, and mail them on different cadences. The clickers get the product emails, the offers, and the new arrivals, because they have shown they act. The openers get the content emails, the stories, and the single clear call to action, because they need a reason to act.

Then watch the clickers for decay. A clicker who stops clicking for 30 days becomes an opener, and an opener who stops opening for 90 days becomes a candidate for the sunset flow. The segment is not a fixed list, it is a ladder, and the job is to keep people climbing it, not to pretend everyone is already at the top.

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Frequently asked questions

What is an engaged segment in Klaviyo?

Subscribers who can receive email marketing and opened or clicked in the last 30 days, or subscribed in the last 15 days. It is the default audience for campaigns, and it holds two very different groups: openers and clickers.

What is the difference between openers and clickers?

Openers opened an email, which may mean they read it or may mean Apple Mail preloaded the pixel. Clickers clicked a link, which means they acted on purpose. Clickers are the valuable half: campaign clicks average 1.69 percent against 31 percent opens.

What is a good click rate for ecommerce email?

Klaviyo's 2026 benchmarks put the campaign average click rate at 1.69 percent, and the top 10 percent at 3.38 percent. Flows average 5.58 percent clicks, because they are triggered by behavior rather than sent to a list.

How does Apple Mail Privacy Protection affect open rates?

It preloads tracking pixels, so an open is recorded whether or not the person read the email. Around 64 percent of B2C subscribers use Apple Mail, so the majority of most lists has inflated open rates.