Front-end development
Appearance and functionality
This doesn't mean that front-end is only about the graphic design of the website. Front-end development is implementing the design of a website or app into a technically well-functioning whole. A front-end developer is involved in designing, programming, testing, and implementing the part of the website that is visible to visitors.
This takes into account various aspects, such as user-friendliness, loading times, compatibility with different devices and resolutions; everything needed for a well-functioning website. SEO is also an important part of front-end development. Your texts may be well written, but if Google can't read them due to wrong technique or an illogical site layout, you still won't get far.

