Building Engagecheck

I'm developing a web app for calculate the engagement rate from any Instagram account (I know, there are many tools that do something similar...)

I'm collecting in a Twitter thread (in spanish, sorry) the development process and it would be a pleasure to recieve any kind of feedback or ideas.

Twitter thread - https://twitter.com/dvzgrz/status/1330586889305399298?s=20
Engagecheck - https://determined-montalcini-8d3bb1.netlify.app/

Thank you :)