THE CONCEPT OF KEYWORDS

This is the most fundamental concept in SEO. Keywords and
keyphrases are the words that users might enter into a search engine
to find information which could potentially lead them to your site. They
also indicate to search engines what your site is all about.

Keywords can and should be placed in the meta tags, URLs, and
content of your site in order for search engines to ‘see’ them. This
means that the content of your site must actually be relevant to, and
contain your chosen keywords prominently (we’ll get to how to do all
this later on in the book).

An important factor to consider is that some phrases will be more
competitive than others ie. More sites will be targeting certain obvious
phrases and it will be harder for your site to rank highly when that is
the case.