SEO Impact of Cache Issues and Transition to Next.js

Hello,

I’m experiencing some issues with my website’s cache that might be affecting its SEO performance. When I type cache: followed by one of the page URLs, the content loads without CSS, and everything appears disorganized. Additionally, when I do the same for the homepage, I get a 404 error.

I’ve also used a Google Cache Checker for my domain, and it returns a notification that says ‘not checked.’

Since transitioning from WordPress to Next.js a few months ago, I’ve noticed a drop in keyword rankings. I’m concerned that Google might not be seeing my site correctly, and if that’s the case, it could be negatively impacting my SEO.

Does anyone have insights on how these cache issues and the move to Next.js could be affecting my site’s SEO, and what I can do to address this?