Mailchimp vs HubSpot: Tracking Email Referrals

Mailchimp and HubSpot both track email referrals, but they do it in fundamentally different ways: Mailchimp gives you basic click and conversion data tied to campaigns, while HubSpot offers full attribution across the entire customer journey, including first-touch, last-touch, and multi-touch models. The right choice depends on whether you need simple campaign reporting or a complete picture of how email drives revenue. Here’s what you need to know to decide.

How Email Referral Tracking Works in Each Platform

Email referral tracking answers one question: when someone clicks a link in your email and later buys (or signs up), which email gets the credit? Both tools use tracking parameters and cookies, but they differ in depth.

Mailchimp: Automatically appends tracking parameters to links in campaigns. The dashboard shows clicks, opens, and conversions (purchases) per campaign. You can see which emails led to orders, but only if you’ve connected an e-commerce store (like Shopify or WooCommerce). Attribution is last-touch: the last email clicked before purchase gets the credit.
HubSpot: Uses a tracking cookie on your website. When a contact clicks an email link, HubSpot records the interaction and ties it to their contact record. Its attribution reports can credit the first interaction, last interaction, or all interactions equally. You can also create custom attribution models. This works with any website, not just e-commerce platforms, and includes form fills, page views, and sales calls.

The key difference: Mailchimp reports at the campaign level (how many sales came from this email), while HubSpot reports at the contact level (which emails influenced this specific person’s journey).

Attribution Models: Last-Touch vs. Multi-Touch

Attribution models decide how credit is assigned when a customer interacts with multiple emails (or other channels) before converting.

Last-touch (Mailchimp default): The final email clicked before purchase gets 100% credit. Simple, but ignores earlier emails that built trust.
First-touch (HubSpot): The first email that brought the contact in gets credit. Good for understanding top-of-funnel.
Multi-touch (HubSpot): Credit is split across all interactions, either equally or with custom weights (e.g., 40% first, 40% last, 20% middle).

If you run a single welcome email and a purchase happens, both tools agree. But if you send a 5-email nurture sequence, Mailchimp will credit only the last email, while HubSpot can show that all five contributed. For most businesses with multiple emails per customer, multi-touch is more accurate.

What Data You Need to Connect

Both platforms require integration to see referral revenue.

Mailchimp: Requires an e-commerce integration (Shopify, WooCommerce, Magento, etc.). Without it, you only see clicks, not purchases. The integration syncs order data back to Mailchimp, linking purchases to the last-clicked campaign.
HubSpot: Works with any website if you install the tracking code. It captures page views and form submissions automatically. For revenue, you need to connect a CRM (HubSpot’s own is built-in) and optionally sync with e-commerce platforms. Even without e-commerce, you can track leads and opportunities.

If you don’t have an online store, Mailchimp cannot track referral revenue at all. HubSpot can track leads and deals manually or via integrations.

Comparing Reporting Interfaces

Mailchimp’s reporting is campaign-centric: each campaign has its own report with opens, clicks, and conversions. You can compare campaigns side-by-side, but there’s no cross-campaign journey view. HubSpot’s reporting is contact-centric: you can see a timeline of every interaction for a single contact, and its attribution reports aggregate across all campaigns and channels.

For a quick “which email got the most sales,� Mailchimp is easier. For “which sequence of emails led to this deal,� HubSpot is far more powerful. HubSpot also lets you create custom report dashboards, while Mailchimp’s are more fixed.

Common Problems and Misconceptions

A frequent misconception is that Mailchimp tracks all referrals. It only tracks conversions if you have the e-commerce integration and the purchase happens after a click. If someone clicks an email, then comes back a week later and buys, Mailchimp usually still credits the email (via cookie), but if they clear cookies or use a different device, the referral is lost.

Another issue: both platforms use cookies, so cross-device tracking is imperfect. If a user clicks on mobile but buys on desktop, the referral may be missed unless the platform uses a persistent identifier (like a logged-in user). HubSpot’s cookie lasts longer (default 2 years) than Mailchimp’s (session-based or 30 days), so HubSpot captures more delayed conversions.

Also, Mailchimp’s “conversions� only count purchases, not other goals like sign-ups or downloads. HubSpot lets you set custom conversion events.

Cost and Scalability Considerations

Mailchimp’s free tier includes basic tracking, but e-commerce integration and advanced reporting require paid plans (starting around $13/month for Essentials, but revenue tracking may require Standard). HubSpot’s free CRM includes basic email marketing and contact tracking, but attribution reports require a Marketing Hub paid plan (starting around $15/month for Starter, but multi-touch attribution is only in Professional, around $800/month).

For small businesses with simple needs, Mailchimp is cheaper. For B2B companies with long sales cycles, HubSpot’s cost is justified by its deeper attribution.

How to Choose

Ask yourself these questions:

Do you sell products online? If yes, Mailchimp may be enough. If no, HubSpot is better.
Do you need to know which email in a sequence drove the sale? If yes, HubSpot.
Is your sales cycle longer than a week? If yes, HubSpot’s longer cookie window helps.
Do you need to track form fills and calls as conversions? If yes, HubSpot.
Is budget a major constraint? If yes, Mailchimp.

For most e-commerce stores with short cycles, Mailchimp’s last-touch is adequate. For B2B, SaaS, or any business with multiple touchpoints, HubSpot’s multi-touch is worth the learning curve.

Frequently Asked Questions

Does Mailchimp track referrals from email to website?

Yes, Mailchimp tracks clicks to your website via tracking parameters. It shows you which links were clicked and how many times. But to see actual sales or sign-ups, you must connect an e-commerce platform or use its tracking code on your site. Without that, you only see clicks.

Can HubSpot track email referrals without a website integration?

No, HubSpot needs its tracking code on your website to associate email clicks with contact records and conversions. The code is free and easy to install. Without it, HubSpot can still send emails but cannot track what happens after the click.

Which platform gives more accurate referral data?

For most cases, HubSpot is more accurate because it uses persistent cookies (2 years) and can track multiple interactions. Mailchimp’s cookies are shorter-lived and only credit the last click. However, both are subject to cookie blocking and cross-device gaps.

Can I use both Mailchimp and HubSpot together?

Yes, you can use both, but they will have separate tracking systems. You could use Mailchimp for simple campaigns and HubSpot for CRM, but you’d need to manually reconcile data. Most businesses choose one to avoid double-tracking.

Do I need to add UTM parameters manually?

No, both platforms automatically add their own tracking parameters. Mailchimp adds its own, and HubSpot adds its own. If you want to track email referrals in Google Analytics, you may need to add UTM parameters manually or use the platform’s built-in Google Analytics integration.

What happens if a contact clears their cookies?

Clearing cookies erases the tracking identifier, so the referral is lost. This affects both platforms. HubSpot’s longer cookie duration increases the chance of catching delayed conversions, but if cookies are cleared, the data is gone.

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