Problems with seo

[lolo]

Hello.
I have a problem with Google speed test:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
and I can not minify HTML
Here is the link:
https://developers.google.com/speed/pagespeed/insights/?hl=en&url=www.luxarve.com&tab=desktop


It is also a problem for indexing in search engines errors in w3c:
https://validator.w3.org/check?uri=luxarve.com

How I can fix these errors?

And the mobile version has many problems. HTML5? is there a CSS?

[Foton]

You may try and transfer some of the scripts into the end of the file, modifying the template code. However, that might afftect the site negatively, that's why you should be maximally accurate and keep the errors under control.
In general, 89/100 is a pretty good result. The results of validator check are really good, too. If you consider the error messages with more attention, you'll see that your site is absolutely OK.

[lolo]

This is important:

https://validator.w3.org/check?uri=luxarve.com

There are many errors for end tag and start tag. (> bag )(/> good).

If I correct,
Will I have problems with the site?

(That error is very important in SEO)

[Xpycm]

Hello.

Thank you for you notice, but we think that markup validation has no impact on SEO.
What really matters is content quality, adaptive design and frequency of site updates.
You're able to make any code changes you find necessary.

For example, number of mistakes:
https://validator.w3.org/nu/?doc=http%3 ... lia.com%2F
https://validator.w3.org/nu/?doc=http%3 ... low.com%2F
https://validator.w3.org/nu/?doc=https% ... rbnb.ru%2F
https://validator.w3.org/nu/?doc=http%3 ... 2Fen-us%2F