Will A Non-Mobile Friendly Site Hurt My Rankings?
Google rolls out “Mobile First” indexing and how to create a mobile friendly site that Google doesn't hate
Page speed will become a ranking factor in mobile search
Starting in July 2018, Google will finally use mobile page speed as a ranking in their mobile search results.
More about...
What Is HTML?
HTML is an abbreviation of HyperText Markup Language. It is a descriptive language by which webpages are created.
More about HTML
Search engine optimization (SEO)
The essence of the term "CEO" is to rank your site in Google search . The closer you get to the first result in the search, the greater the likelihood that someone will open the exact link to your site.