There is a perception that the url does not affect the site in search engine results. In fact, it's not quite true. Competently composed url will affect the search engines. Consider the basic characteristics of a competently made URLa. The length of the URL: do not make the url longer than 3-4 words. Bots poorly perceived long web addresses.
Another argument: the practice has shown that a short url users click more often. Keywords in URL: Search Engines are looking for keywords not only in the text, but also in incorrectly. So it makes sense to be focusing on the url keyword. For example, at the request of seo, page seo-v-saitax.net will be higher in the search than myblogpage.org. Hyphens better than underscores. Search engines do not distinguish an underscore, so the site name "" will only contribute to promoting on-demand '.
However, the title page 'red-cat "will contribute to the promotion and the word' red 'and the word 'cat' and the phrase 'red cat. " Lowercase letters. Putting in the url caps, remember that people accustomed to typing the address in lowercase letters. In addition, capital letters can be "split in two url to 2, in the eyes of the search engine will look like duplicate content.