Landing Page: Sierra Club: Donation Page Conversion Optimisation
Hypothesis
Sierra Club's donation pages were not connecting individual donation actions to tangible environmental outcomes, reducing the emotional urgency that drives donation completion. Reframing donation asks around specific, concrete outcomes would increase completion rates.
Test Results
Key Learning
Context: Without clear urgency signals, users delay their decision on the landing page, leading to drop-offs and abandoned sessions.
What was tested: For nonprofit donation pages, anchoring each donation amount tier to a specific, tangible environmental outcome (e.g., '$25 protects 10 acres') significantly outperforms generic impact statements. Setting the monthly donation option as the default (with clear ability to switch to one-time) increases recurring donation rates without reducing overall completions. Progress indicators showing campaign momentum increase urgency and completion rates for time-bound fundraising campaigns.
Result: No statistically significant difference was detected. This null result is still valuable — it narrows the search space and helps calibrate your minimum detectable effect for future tests.
How to Apply This to Your Site
This experiment tested landing page: sierra club: donation page conversion optimisation but produced no statistically significant change. The test was run on a landing page page in the nonprofit industry. Inconclusive results suggest this particular change may not be a priority — focus testing effort on higher-impact areas.
Before you test: Consider that cta tests typically require adequate traffic to reach statistical significance. Run your test for at least 2 full business cycles to account for weekly traffic patterns.
This result reached 95% statistical confidence, meaning there is a very low probability the observed effect was due to chance. Results at this confidence level are generally considered reliable for making business decisions.
What Was Tested
CROMetrics ran donation page optimisation tests for the Sierra Club environmental advocacy organisation. Tests included donation amount suggestion sizing, impact framing (specific environmental outcomes per donation amount), monthly vs one-time default selection, and page layout. The programme targeted the conversion gap between donation page visitors and completed donations.
Methodology
Build On These Learnings
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