How a Pop-Up on the Journal Page Increased Follows

Experiment ID: #143732


CaringBridge offers free personal, protected websites for people to easily share updates and receive support and encouragement from their community during a health journey. Every 7 minutes, a CaringBridge website is created for someone experiencing a health event.

Experiment Summary

Timeframe: 03/29/2023 - 04/07/2023

CaringBridge is a platform where users can update friends and family about their health journey. In the journal view of a user’s page, CaringBridge wanted to capture users who were browsing the user’s entries but did not follow them. We hypothesized that a simple popup with value copy about staying updating and informed on the user’s health journey would increase the number of follows.

Research Question

We believe that a popup with value copy for readers on a user’s page, but who do not follow them will achieve an increase in follows because the copy helps impart the importance of staying updating and how they can offer support by following.


C: Control
T1: Follow Nudge


 Treatment NameConv. RateRelative DifferenceConfidenceAverage Gift
C: Control 7.4%
T1: Follow Nudge 17.7%138.8% 100.0%

This experiment has a required sample size of 79 in order to be valid. Since the experiment had a total sample size of 47,587, and the level of confidence is above 95% the experiment results are valid.

Flux Metrics Affected

The Flux Metrics analyze the three primary metrics that affect revenue (traffic, conversion rate, and average gift). This experiment produced the following results:

    0% increase in traffic
× 138.8% increase in conversion rate
× 0% increase in average gift

Key Learnings

The key learning from this experiment is that adding a pop-up with value copy about staying updated and informed on the user’s health journey can significantly increase the number of follows on a user’s page. The treatment group saw a 138.8% increase in Follow Site (Journal Pages) for All Traffic with a 100.0% statistical level of confidence. This improvement was seen across all visitor types, including desktop, mobile, tablet, new, returning, direct, email, organic search, and paid search visitors. However, visitors aged 45-54 had a 221% decrease in follow site (journal pages) with a 97% level of confidence.

In future experimentation, it is essential to consider the age group that did not respond positively to the pop-up and adjust the messaging accordingly. Additionally, testing different variations of the pop-up, such as other types of value copy or presenting it at various points during the user’s journey on the platform, could reveal even more effective ways to increase follows. Overall, the results of this experiment demonstrate the value of reminding users, not only that they weren’t already following, but also the important of how their follow supports the user.

Experiment Documented by NextAfter

Question about experiment #143732

If you have any questions about this experiment or would like additional details not discussed above, please feel free to contact them directly.