What exactly is needed for Google Insight to see a site as responsive?

Question

Drupal

Tell me what exactly needs to be added to the responsive theme so that Google sees it as adaptive. it is optimized for the screen or window size for me, but in Google it is not.
I’ll explain for drupalers:
I had an adaptive Media Responsive Theme template on CMS Drupal, but in pursuit of speed, I cut it down a lot. And now it adapts on my computer, in Internet services it also looks adaptive on different services, everyone sees it correctly from phones. And Google pagespeed sees it as non-adaptive and optimization for phones has dropped from 72 to 57.
I cut this topic like this: I
deleted all functions from template.php
, deleted all files from the templates folder except page.tpl.php
and also deleted all js scripts from the page.
there is a js/custom.js script in the theme, but it seems to me that it works with the menu, and not with adaptability.
Problem: in firebug, when opening a site in device emulation, the site does not adapt, and in Google insight, it also does not adapt to mobile screenshots.
and with a simple window compression, it adapts normally and in services like www.mobilephoneemulator.com it normally looks adaptive.
what does google need?

Answer 1

Do you have such a meta tag in the head?

<meta name="viewport" content="width=device-width, initial-scale=1">