Edge function exceeded 1mb

I got this error in vercel, using next.js v13.2,

"Build Failed
The Edge Function "index" size is 1.09 MB and your plan size limit is 1 MB."

I guess that one of my pages are too large, but i can't figure out which one vercel is referring to since it's only telling me that index is too large which is a rather general name.
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