Fix Excessive API Calls Issue

I'm seeking a knowledgeable developer to help diagnose and resolve an issue with my website, which is experiencing a significantly higher number of API calls compared to actual visitors. The website is built using Node.js and Contentful CMS. I need someone who can understand the underlying problem and provide a solution to fix it.

Key Requirements:
- Analyze the current API usage and identify the cause of excessive calls
- Ensure the website's API is secure and functioning efficiently
- Implement solutions to reduce unnecessary API calls
- Familiarity with Node.js and Contentful CMS
- Ability to work with or suggest API rate limiting tools if necessary

Ideal Skills and Experience:
- Strong background in Node.js development
- Experience with Contentful CMS
- Knowledge of API management and security
- Problem-solving skills to diagnose and fix API-related issues
- Ability to communicate findings and solutions clearly

If you have the expertise to help resolve this issue, I would love to hear from you.