Published 2026-10-22 · 9,510 storefronts measured · by the SEO Scan Audit team
| Group | Stores | Product markup |
|---|---|---|
| Running Klaviyo | 4,310 | 2.8% |
| Not running Klaviyo | 5,200 | 4.2% |
Klaviyo is a proxy for "this store spends on marketing". The stores spending most on email are the least likely to carry the technical markup that makes their products legible in search. INFERENCE That is a correlation we observed once, not a causal claim — we did not test whether installing Klaviyo changes markup.
Because it is the kind of thing a store owner can act on today: if you already pay for an email platform, the cheapest next improvement is not another channel. It is the product data your existing traffic lands on.
Run the free scan on your store See a 7-page sample report
n = 9,510 live storefronts, one homepage fetch each, 20 October 2026, no JavaScript rendering, no sampling. Rates are literal counts. Published 2026-10-22. Raw rows available on request — support@seoscanaudit.com. Individual stores are never named. Counts are literal rows; any exclusion is stated on the page.
No. It is one snapshot of a correlation. App detection uses script signatures on the homepage, and we measured homepages only.