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Hi Cesare,

As there is no way to know exactly how long it would take to see the SERP effect on your new change, I actually advice to wait and see for at least one or 2 months. Also, there are many ranking factors, you can't just wait and see after a single improvement (keyword density) to get results. It might be good enough to work; but there might be other factors to consider as well.

My technique is prety simple, after making changes on a particular page, I use a specific amplification for this page (acquisition of backlinks, shares on social networks,...) to force Google Algorithm to not only take in consideration of my previous changes, but also to see this page as a really important one.

One or 2 months might be enough to see what the changes you made means in term of SERP.

Hi,

Can you please share the message you're receiving ? Also, did you check your Google Search Console to see if Google can access to your website ? Knowing the type of errors is the key to advice you.

Hello,

The way you do coding your website depends on you. As long as it respects the standard procedure and with no error (or minor), there won't be an issue for Google to read your menu and to pass juice. I'm reffering here to internal links.

So, don't worry as long as your code is readable (as I can see on your example), you won't face any concern from Google.