Ecommerce Email Marketing Stack: 100-Store Sample
Data-backed insight
Update from the larger 1,000-site study
The later cross-industry study expanded the ecommerce crawl to 250 domains and kept the same directional pattern: Shopify and Klaviyo remained the clearest ecommerce stack signals, with Gorgias and Attentive visible often enough to matter for support and SMS evaluation.
- Shopify in DTC/ecommerce
- 84%
- 197 of 235 normal-status ecommerce sites showed Shopify signals.
- Klaviyo in DTC/ecommerce
- 61%
- 143 ecommerce sites showed Klaviyo signals.
- Gorgias support signal
- 20%
- 46 ecommerce sites showed Gorgias signals.
- Attentive SMS signal
- 17%
- 41 ecommerce sites showed Attentive signals.
Ecommerce email marketing stacks are easier to describe in theory than they are to inspect in the wild. Every vendor says it integrates with Shopify. Every store says it cares about retention. But the public storefront usually tells a more practical story: which scripts, pixels, forms, and support widgets are actually visible when a shopper lands on the site.
We checked 100 DTC ecommerce storefront domains for public-page technology signals. The result was not a market-share study, and it should not be read that way. It was a narrow look at visible homepage evidence: email and SMS tools, ecommerce platform signals, analytics tags, ad pixels, support widgets, and conversion tools.
The short version: Klaviyo was the clearest email marketing signal in the sample, Mailchimp still showed up often enough to matter, Omnisend and Postscript appeared as more focused ecommerce/SMS layers, and most stores paired retention tools with a fairly heavy paid-media and analytics stack.
If you are choosing software for a store, use this as context, not as a winner-takes-all ranking. For direct recommendations, start with our best ecommerce email marketing platforms shortlist or compare Klaviyo vs Mailchimp.
What we checked
We loaded 100 public storefront homepages and looked for recognizable public signals:
- script URLs
- network requests
- browser globals
- inline script text
- selected form and widget elements
The detector was intentionally narrow. It looked for ecommerce, email, SMS, CRM, support, ads, analytics, and conversion tools that are relevant to SoftwareInspect's existing review and comparison coverage.
It did not log into Shopify, inspect app installs, crawl private screens, inspect customer accounts, or verify billing. A detection means the public page exposed a recognizable signal. A non-detection does not prove the tool is absent.
One domain timed out. Two domains returned non-standard HTTP statuses but still loaded enough public assets to inspect. For that reason, the safest way to read the numbers is "visible signals in a 100-domain sample," not "percentage of all ecommerce stores."
The public stack signals we found
Here are the main findings from the cleaned run.
| Technology | Visible signals in sample | Confidence note |
|---|---|---|
| Shopify | 97 | High-confidence public Shopify signals |
| Klaviyo | 61 | All high-confidence network signals |
| Mailchimp | 24 | 22 high-confidence signals, 2 form matches |
| Omnisend | 12 | 10 high-confidence signals |
| Postscript | 10 | All high-confidence network signals |
| Gorgias | 13 | 11 high-confidence signals |
| Meta Pixel | 65 | 64 high-confidence signals |
| Google Ads | 51 | 39 high-confidence signals |
| Google Tag Manager | 73 | High-confidence or strong public tag signals |
| Google Analytics 4 | 65 | 64 strong GA4 signals after tightening detection |
| TikTok Pixel | 30 | High-confidence public pixel signals |
| Pinterest Tag | 22 | High-confidence public tag signals |
The most useful interpretation is not "Klaviyo has 61% market share." That would be too strong. The useful interpretation is narrower: in this Shopify-heavy DTC sample, Klaviyo was visible on far more public storefronts than any other email platform we tracked.
That matches the broader category story. Klaviyo and Shopify announced a strategic partnership in 2022, with Klaviyo becoming the recommended email solution partner for Shopify Plus merchants. Public technology datasets such as BuiltWith and Shopify app datasets such as StoreCensus also track Klaviyo, Mailchimp, and Omnisend as major ecommerce and Shopify email tools, though their data sources and definitions differ from ours.
Klaviyo looked like the default serious-retention layer
Klaviyo was the strongest email marketing signal in the sample: 61 stores exposed high-confidence Klaviyo network evidence.
That does not mean every serious store must use Klaviyo. It does mean Klaviyo was the most common visible retention layer in this sample, especially on stores that also exposed heavier paid-media and analytics tooling.
The reason is practical. Ecommerce teams often need purchase-based segments, abandoned cart flows, product recommendations, win-back campaigns, and revenue attribution. Klaviyo is built around those use cases. If the store is large enough to care about lifecycle revenue, Klaviyo is often easier to justify than a general-purpose newsletter tool.
The trade-off is cost and complexity. Klaviyo can feel excessive for a small store that sends a newsletter twice a month and runs one simple welcome sequence. If that is your situation, compare Klaviyo pricing, read our Klaviyo review, and look at Klaviyo alternatives before defaulting to the most visible tool in the sample.
For the direct ecommerce trade-off, use Klaviyo vs Mailchimp. If automation flexibility matters more than Shopify-native depth, compare ActiveCampaign vs Klaviyo.
Mailchimp is still visible, but the role looks different
Mailchimp showed up on 24 stores in the sample. Most detections were high-confidence script or network signals, with two medium-confidence form matches from list-manage.com.
That is enough to reject a lazy narrative that Mailchimp has disappeared from ecommerce. It has not. But the public evidence suggests a different role from Klaviyo. Mailchimp is more likely to be the general-purpose email tool, the legacy newsletter platform, or the lower-friction starting point.
For smaller stores, that can be a rational choice. Mailchimp is easier to start with, has a familiar editor, and can handle basic campaigns. The concern is not whether Mailchimp can send ecommerce emails. The concern is whether the store will outgrow its ecommerce segmentation, automation, and attribution model.
If the decision is mostly about cost, start with our email marketing pricing comparison. If the decision is about fit, use our Mailchimp review, Mailchimp alternatives, and ActiveCampaign vs Mailchimp comparison.
Omnisend and Postscript appeared as focused alternatives
Omnisend appeared in 12 rows, with 10 high-confidence detections. Postscript appeared in 10 rows, all high-confidence.
Those are smaller counts than Klaviyo and Mailchimp, but they are still useful signals. Omnisend is most relevant when a store wants email and SMS automation without buying into Klaviyo's full cost curve. Postscript is more specifically an SMS layer, often sitting alongside a separate email platform.
This matters because "email marketing software" is no longer only email. In this sample, stores often combined email, SMS, forms, chat, paid-social pixels, and analytics tags. If SMS is part of the buying decision, the right comparison is not just Mailchimp against Klaviyo. It is whether the store wants one retention platform or a stack of more specialized tools.
Our best email and SMS marketing platforms shortlist covers that decision. For cart recovery specifically, read our abandoned cart email guide, because abandoned cart is where email-plus-SMS differences become concrete.
Support and conversion tools showed up beside email
Gorgias appeared in 13 rows, with 11 strong detections. Privy appeared in 8 rows. Zendesk appeared in 2 rows.
Those counts are smaller than the email and ad pixels, but they point to an important ecommerce pattern: retention does not live in the email platform alone. A store that invests in lifecycle marketing often also invests in customer support, onsite capture, review flows, and post-purchase messaging.
For some merchants, this argues for a specialist ecommerce stack: Klaviyo or Omnisend for retention, Gorgias for support, and a dedicated capture tool where needed. For others, it argues for reducing tool sprawl and choosing a simpler platform that does fewer things well enough.
The right answer depends on team maturity. A lean store with no dedicated marketer should not copy the stack of a larger DTC brand. It should start with the workflows that pay back fastest: welcome capture, abandoned cart, post-purchase, and win-back. See how to choose an email marketing platform for that buying framework.
Paid-media and analytics tags were everywhere
The sample also showed how closely ecommerce email sits beside paid acquisition:
- Meta Pixel appeared on 65 storefronts.
- Google Ads appeared on 51 storefronts, with 39 strong detections.
- TikTok Pixel appeared on 30 storefronts.
- Pinterest Tag appeared on 22 storefronts.
- Google Tag Manager appeared on 73 storefronts.
- Google Analytics 4 appeared on 65 storefronts after tightening false-positive rules.
This matters for email tool selection because lifecycle marketing is usually downstream of acquisition. A store spending on Meta, Google, TikTok, or Pinterest needs better retention economics. If paid traffic is expensive, email and SMS flows are not just "nice to have." They are the mechanism that helps the store earn more from the traffic it already paid for.
That is where ecommerce-specific tools can justify their cost. Product-triggered automations, purchase segmentation, and revenue attribution are more valuable when acquisition spend is already meaningful.
If your store is still mostly organic or low-volume, the equation changes. A simpler tool may be enough until the list, order volume, or paid traffic budget grows.
How to use this if you are choosing a tool
Use the sample as a pattern check, not a prescription.
Choose Klaviyo if:
- Shopify or another ecommerce platform is your primary revenue engine.
- You need purchase-based segmentation and multi-step automations.
- You want email and SMS in the same retention system.
- You can justify the price with flow revenue.
Choose Mailchimp if:
- You mostly send newsletters and simple campaigns.
- You want an easier starting point.
- You are price-sensitive at lower list sizes.
- Deep ecommerce automation is not yet a requirement.
Choose Omnisend if:
- You want ecommerce-focused email and SMS without going straight to Klaviyo.
- You care about prebuilt ecommerce automations.
- You want a middle-ground option for smaller or mid-market stores.
Choose a separate SMS tool such as Postscript if:
- SMS is a serious channel, not just an add-on.
- You want SMS depth alongside a separate email platform.
- Your abandoned cart or post-purchase strategy needs text messaging.
If you are still early, the better question is not "What do larger stores use?" It is "What workflows will we actually maintain?" The wrong tool is the one your team pays for but does not use.
What this data does not prove
This sample has limits.
It does not prove market share. It does not measure revenue. It does not include private app installs. It does not show whether a detected platform is actively used well. It does not show whether a store has another tool installed but hidden from the public homepage.
It also does not mean a store with multiple visible tools has a better marketing program. Some of the strongest stores run lean stacks. Some messy stacks expose many scripts because nobody cleaned up old installs.
The value of this data is directional. It shows what was publicly visible across a sample of DTC ecommerce storefronts. The clearest directional takeaway is that ecommerce email choices cluster around store context: Klaviyo for deeper Shopify retention, Mailchimp for simpler or legacy email, Omnisend for ecommerce email-plus-SMS, and SMS/support tools layered in as the store gets more sophisticated.
Frequently Asked Questions
Is this a market-share study?
No. This is a public-page signal review from a 100-domain sample. It only counts visible homepage evidence such as scripts, network requests, forms, and widgets. It should not be read as market share or total customer adoption.
Why can a tool be absent from the data if a store uses it?
Some tools do not expose public homepage scripts. Some scripts load only after consent, only on product/cart pages, or only for certain geographies. Some stores use server-side tagging or backend integrations. A non-detection means we did not see a public signal, not that the tool is definitely absent.
Why did Klaviyo show up more than Mailchimp?
In this sample, Klaviyo exposed 61 high-confidence public signals while Mailchimp exposed 24 visible signals. The likely reason is fit: Klaviyo is built around ecommerce events, Shopify data, and lifecycle flows. Mailchimp still appears, but often fits simpler campaigns or legacy email programs better.
Should a small Shopify store copy this stack?
No. A small store should start with the workflows it can maintain: capture, welcome, abandoned cart, post-purchase, and win-back. If Shopify Email or Mailchimp covers that for now, paying for a larger stack may not help. Upgrade when your workflow needs justify the cost.
Which comparison should I read next?
If you are choosing between ecommerce email tools, start with Klaviyo vs Mailchimp. If automation depth is the issue, read ActiveCampaign vs Klaviyo. If you want the broader category shortlist, use best ecommerce email marketing platforms.
Next steps
If the data matched what you are seeing in your own store, use these guides next:
