Stella
A calm, chart-driven site for Stella that explains incrementality measurement and shows growth leaders where their next dollar should go.
ClientStella
LocationWorldwide
ServicesWeb Design · Development
PlatformCustom
lockstellaheystella.com
Explaining causal measurement without the jargon
Stella is an incrementality and marketing measurement platform. It combines attribution, post-purchase surveys, holdout experiments and media mix modeling, then weighs the evidence into one answer. The site had to make a technical idea clear to growth leaders and get them to start free or talk to a founder.
We used a quiet sage-green palette and let illustrative charts carry the story. A sticky step list (measure, learn, compare, combine, decide) changes the chart beside it as visitors scroll. A sample question box and an evidence-strength card show what Stella returns, followed by a plain-language FAQ.
Scroll-driven charts
Five steps swap the chart beside them as the page scrolls.
Signals side by side
Attribution, surveys, holdouts and MMM compared in one panel.
Ask Stella demo
A sample question box shows a budget recommendation.
Evidence strength card
Confidence, calibration and holdout evidence shown for each channel.
Stella's measurement, by the numbers
250+Incrementality experiments a year
$400M+In ad spend measured
FreeReal holdout test, no credit card
Inside the build
stellaheystella.comnorth_east
What Stella answers
Spend response curves
Budget reallocation
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