Hi there,
Welcome to Teslathemes’ support service.
I can see that the link checker has found few atavisms used in the previous version of the theme that isn’t more used.
We will check and remove the link references in the next theme update since the theme isn’t using them anymore.
At the moment, I suggest you to login by any FTP client like FileZilla, find the theme’s folder and remove the link references stated below from zero/css/screen.css
file
/themes/zero/img/wood.png -> referenced in .advantages-box { background URL ( screen.css line 2255 )
/themes/zero/img/clouds.jpg -> referenced in body .feedback-box { background URL ( screen.css line 2290 )
/themes/zero/img/bg-line.png -> referenced in body .call-action-box { background URL ( screen.css line 2302 )
/themes/zero/img/statistic.jpg -> referenced in .statistic-box { background URL ( screen.css line 2317 )
As for the https://fonts.googleapis.com/ link, it is used in ‘dns-prefetch’ meta and unfortunately, you cannot remove it since the Tesla Framework operates with it in order to solve the DNS lookup and respectively speed up the next links that we use for the fonts loading.
You can read more about ‘dns-prefetch’ in this article: https://css-tricks.com/prefetching-preloading-prebrowsing/
Best Regards