No visible penalty but my homepage disappeared from SERP

Hi there,


I haven't done any specific SEO action for one of my website. I have been continuously focusing on content and UX for a while, improving both of them from my point of view. Organic traffic has been rising during the last weeks, confirming we're taking the good path.

Curiously, my homepage has disappeared from the SERP since yesterday, even on the brand query. There is no drop of overall organic traffic, it seems there is no penalty, and I don't see why there would be one.
Any...

No visible penalty but my homepage disappeared from SERP

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