In a world where people increasingly navigate the Internet over mobile devices, a website that automatically fits the screen becomes indispensable.

With the advancement of technology, and with more and more mobile devices, the need to use a computer has been decreasing. With this in mind, websites have to be prepared for the various screen resolutions, such as smartphones, tablets, netbooks, etc. That's what responsive web design is, a fluid layout site that fits the screen so you do not need to develop multiple versions of the same site for the various resolutions.

Non responsive site

Advantages

  • Same appearance regardless of resolution.
  • Easier to create.
  • Faster to create.

Disadvantages

  • Display problems at very low or very high resolutions;
  • Low resolutions can cause horizontal navigation, making reading difficult;
  • High resolutions can cause the site to have too much empty space on the sides;
  • Difficulty dealing with changes in font size.

Responsive site

Advantages

  • Can fill the browser screen with content for easy reading;
  • More dynamic page in font size adjustment;
  • All elements are spread across page space.

Disadvantages

  • More difficult to create;
  • Different looks in different resolutions;
  • More time-consuming development.

Since April 21, 2015, Google penalizes all non-responsive sites, meaning a search on a Google search engine, non-responsive sites are in lower positions and thus less likely to be visited.