Check your html for errors. One error, but there is not much I can do about it, being a Google link.
Check your CSS files for errors. No errors!
Check site loading speed. Less than one second fully loaded is what you need.
Check that your analytics code and sitemap.xml are being read correctly by Google. Looks good so far.
This is where you can see the speed difference of Hugo! Especially with comments loading on demand.
All good.