Why has the click-through rate for credit card offers on NerdWallet dropped 15% in the last month?

Introduction

The recent 15% drop in click-through rate (CTR) for credit card offers on NerdWallet is a concerning trend that requires immediate attention. As we analyze this product issue, we'll follow a systematic framework to identify, validate, and address the root cause while considering both immediate and long-term implications for NerdWallet's credit card comparison service.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking there might be seasonal factors at play. Has this 15% drop been compared to the same period last year?

Why it matters: Seasonal trends could explain the CTR decline and inform our solution approach. Expected answer: Yes, it's been compared and the drop is still significant. Impact on approach: If seasonal, we'd focus on optimizing for this specific period.

• Considering user segments, I'm curious if this decline is uniform across all user types. Have you noticed any particular user segments more affected than others?

Why it matters: Identifying specific affected segments could point to targeted issues or opportunities. Expected answer: The decline is more pronounced among mobile users. Impact on approach: We'd prioritize mobile experience optimization if this is the case.

• Thinking about recent changes, has there been any significant update to the credit card offer layout or recommendation algorithm in the last month?

Why it matters: Recent changes could directly impact user interaction and CTR. Expected answer: A minor update to the recommendation algorithm was implemented. Impact on approach: We'd focus on analyzing and potentially reverting or tweaking the algorithm change.

• Considering market dynamics, have there been any notable changes in credit card offerings from major issuers recently?

Why it matters: Changes in the credit card market could affect user interest and CTR. Expected answer: No significant changes in credit card offerings have been observed. Impact on approach: We'd focus more on internal factors rather than market dynamics.