Amazon Associate Secret Key

Here are a few tips that may help you find where else you might have used the old Amazon affiliate secret API key that you deleted:

1. Check your WordPress theme files and plugin code for any instances of your affiliate links or API key. Sometimes they can be hardcoded into the code.
   

2. Search your database tables directly for references to the old API key. It may show up in wp_postmeta, wp_options etc.
   

3. Use a site-wide text search tool like grep or SilverSearcher to scan all files on your server for the API key string.
   

4. Review your build or deployment tools in case the key got embedded there. For example, check CI/CD configs, Dockerfiles, NPM scripts etc.
   

5. Go through plugins one-by-one and check their config/settings for affiliate links. Especially marketing, SEO and related plugins.
   

6. If you use caching like Varnish, clear the cache and check the raw cached requests for signs of the old API key.
   

7. Contact Stripe support and see if they can look up if the old key is still being used somewhere. They may be able to identify it.
   

8. As a last resort, you can generate a brand new API key, update all links & integrations, and invalidate the lost key via Stripe.
   

Hopefully scanning systematically through your site's code and tools will uncover where the old key is still active. Let me know if you have any other questions!