Pages with tag Search Engine Optimization

Google starting to enforce mobile-friendly web design as a search ranking factor This week the traffic to one of my sites is exhibiting a steep traffic fall-off. For years it has had a solid 1000 visitors per day, or so, and at the beginning of March the traffic started to slowly diminish, then on Wednesday April 3 the traffic fell off steeply. Usually this site has a fall-off on the weekends, so this particular change is ominous. In the Google Webmasters tools is a clue - that at the beginning of March there is suddenly many reports of mobile usability issues. The two are likely connected as Google has long warned of a plan to downgrade sites that are not mobile friendly.
How does a collapsed section affect on page SEO? We might want to optimize the visual space on a web page to display a large amount of text without it looking like "too many words". Visitors seeing a long block of text might be put off and go somewhere less verbose. Using an accordion to collapse sections of text -- I have an example below -- can minimize the vertical space required to display the page. But it requires putting text inside a div tag with "display - none" and the search engines might think the page has negative SEO factors. But by some simple observation we can see that's not the case.
Intermediate result fixing mobile usability problems after Google enforced mobile-friendly web design as a search ranking factor Last week I saw an ominous drop in traffic on one of my sites that was related to Google starting to enforce mobile-friendly web design on the site. Google has long warned it would start looking at mobile-responsiveness and use it as a ranking factor in search results. My site wasn't too bad in this regard, but some of the pages were outright horrible on mobile devices. Not all pages, only some. I've spent most of the last week working on the issues, and have an intermediate result to show.