Sudden increase in Edge Requests without traffic changes

Help
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Hello,

Problem

Since January 2026, my website has seen an increase from 5M to 40M edge requests per month, despite no changes in traffic or settings. I noticed this due to increased overage fees in our monthly invoice.

Observations

  • Edge Requests: In Observability > Edge Requests, I can see 1M+ requests for our favicon.ico every 24 hours, which I assume is the main culprit.
  • Cache Status: I confirmed the cache rate is 100% on this favicon.ico.
  • Bot Activity: Bot numbers are quite low and acceptable.
  • Timeline: The problem started in January, but our favicon and website did not receive any updates in the months before or after that.

Question

Does anyone have tips for how we can reduce the edge requests on this? I am wondering if perhaps a setting was changed through a new Vercel update that we need to adjust.

Any support is appreciated.

Thank you