How search engines look at collapse content in mobile while on desktop it open by default?

[Roi_Bar]

Hello everyone!
To have a mobile friendly UX we chose to collapse some of the page content.
On the desktop it is in open mode by default and user can see the whole content.
Does the search engines see the content even if it's collapse? is the collapse mode on the mobile only can hurt us with SERP ranking?

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[OlegKorneitchouk]

Currently, Google only looks at the desktop version of the page for it's index so collapsing for mobile would have no effect on rankings.

In general, Google says that hidden/collapsible content is given less weight than visible since its not considered as important for users to see.

[BeanstalkIM]

This is spot-on correct.

[bridget.randolph]

I have to disagree with the above.

Google absolutely can view mobile content, in fact they have a separate crawler that spoofs a mobile user agent in order to crawl mobile content. They may not have a separate mobile index of that content, but that has nothing to do with whether they view, crawl, and index mobile pages. We know that they do, in fact, given that whether a page is mobile-friendly is a rankings factor for mobile search results.

To answer your question - having the content collapsed shouldn't be a problem as long as the content is viewable with Javascript and CSS disabled. If Javascript is required to expand the collapsed content, the mobile crawler may not be able to see this content. You may want to test the page(s) with the Mobile-friendly Testing Tool and also try a Fetch and Render (for Smartphone) of the mobile page, to see how Google sees the page(s).

[roeesa]

Thanks Bridget. I think the question eventually is this:

If there is a mobile page with hidden content (e.g., collapsed) - and assuming it's hidden in a way that is viewable to Google crawler - does that content get lower importance in ranking even though it is not hidden in desktop?

Example:

• Desktop version of the page has "Keyword1" visibly displayed.
• Mobile version of same page has "Keyword1" hidden in a collapsed view.

Will the mobile version be better ranked for "Keyword1" if it will not be hidden? Even though it's not hidden in the desktop version?

If it's hidden in both versions then my assumption is that the answer is yes based on this statement from Google's John Mueller (November 2014):
"From our point of view, it's always a tricky problem when we send a user to a page where we know this content is actually hidden. Because the user will see perhaps the content in the snippet, they'll click through the page, and say, well, I don't see where this information is on this page. I feel kind of almost misled to click on this to actually get in there." https://www.seroundtable.com/google-hidden-tab-content-seo-19489.html

But I'm not sure if that's still true when it's hidden only for mobile.

Appreciate everyone's thoughts on this.