Repeat purchase rates, LTV, churn and retention metrics by vertical — the numbers to compare your store against.
The usual advice names a magic hour for sending email, but the only numbers that actually hold up are industry open-rate benchmarks and quarterly retail sales figures, and neither one says anything about clock time at all.
Most advice about referral programs leans on growth-marketing folklore instead of the retail sales figures and storefront performance thresholds that are actually published, and this article sticks to only the numbers that exist in those sources.
The usual answer is that plain text always wins on trust, but client share data shows almost all opens happen inside one rendering engine, which changes what the test is actually measuring.
Open rate benchmarks for ecommerce sit well below what authors and non-profits post, which means a fashion merchant on a UTD storefront should judge an inbox campaign against 32.67 percent, not against whatever number a different industry is bragging about.
Most advice on when to send a review request email treats open rate as a timing problem when it is actually a rendering problem, since where the message opens shapes whether the ask ever gets seen.
Merchants assume a feature this useful must be standard by now, but the listing data settles that back-in-stock alerts sit near the bottom of what Theme Store themes advertise, which means the usual answer of picking any modern theme and expecting it to be there is wrong.
Most merchants judge retention tactics by how confident the vendor sounds, but the only numbers anyone can actually check come from published e-commerce sales data and open email benchmark tables, and those two sources settle less than people assume.
Merchants assume click rate is the number that decides cross-sell timing, but the click-to-open gap across seven industries shows the second offer is really being judged on unsubscribe cost, not curiosity.
Merchants keep asking which theme has the most features, but the answer that matters is that 12 features already sit in all 15 themes checked, which means the real question is what happens after the standard list runs out.
The usual comparison chart counts stars and prices, but the real fight is measured in listed feature counts and category density, and the two do not point at the same themes.
Merchants assume subject line tricks drive email revenue, but the measured numbers point to automation and timing instead, which is why this piece settles what the data actually supports rather than what is assumed about subject lines.
Merchants assume a welcome email and a cart reminder are the whole automation job, but the gap between the average dollar return and the automated-flow dollar return shows most of the money sits in messages nobody manually writes twice.
Merchants keep asking for a magic number of emails per week, but the measured data settles a narrower question: what a send is worth, what happens above 5,000 messages a day, and why the answer is about deliverability rules and return math rather than a calendar.
No vendor publishes a headline list growth benchmark, but the inputs are all on the record: capture converts at 2.1% on popups and 6.47% on landing pages, and every campaign send costs about 0.2% of its audience in unsubscribes. The formula does the rest.
The published data puts the average store's repeat purchase rate at about 25%, with most of the field between 10% and 40%. Here is where those numbers come from, why the median matters more than the average, and the three levers with receipts.
Ecommerce retains about 30% of its customers while banks keep 75% and media companies keep 84%. Those numbers get quoted side by side constantly, and comparing yourself to the wrong column is how stores talk themselves into panic or complacency.
Klaviyo, Omnisend and Mailchimp each publish their own email benchmarks, measured on different brands with different definitions. I put all three into one sortable table and marked exactly where the numbers stop being comparable.
I walked the pricing calculators of Klaviyo, Omnisend, Mailchimp, MailerLite, Drip and Brevo on the same day and wrote down what each one charges a 5,000 contact store. The gap between the cheapest and the priciest serious option is about $50 a month.