Search engines are designed to detect what a website is about and how important that website is on topic - which means use of some criteria of SEO:
Use Common-Sense Keywords and also add location
When it comes to this ask yourself first of all : Who will look for your products or services, and how are they going to do the search?- so on, what keywords are they going to type into the search engine? Add location to those key words too, as people could find your products or services easier and faster.
Add Tags. Use of keywords as Tags
You can use any and all words and phrases related to your main topics, dividing each word or phrase with a comma. Be more creative, think about all the corners that might draw someone to your products or services. Choose only exact words as keywords, and also related similar keywords.
Set up your primary and secondary keywords
Next step is to be sure to use the most keywords as content in the front end of your site. Choose keywords for which your website has a shot at becoming one of the top results for that search. Be sure to qualify your primary and secondary keywords as much as possible, so that you target and corner your niche market. Just be creative.
Hyperlink Keywords in Your Website Content
Hyperlinked words are those which are emphasized and considered especially relevant on your website. Don't miss the opportunity to highlight a keyword! Hyperlinked keywords get extra points with the search engines, especially when they are hyperlinked to other pages with the same hyperlinked keywords. Wherever possible, make it in a way that one hyperlinked keyword leads to another leads to another.
You should generate relevant Incoming Links
Be sure to reach out to others in your field, cross-blogging as much as possible. When you do a guest blog post on someone else's site, you not only will get access to their followers, but you also will get their website pointing to yours, through hyperlinks in your blog post. In return, do the courtesy of promoting that individual's site through your own network - including your social media pages and your mailing list. Also be sure to invite that individual to blog on your site, then ask him to promote the blog post throughout hhis network. Again, you will increase the links pointing to your site.
If most of the sites related to your products or services are pointing to yours, the search engines will see your website as relatively important in the industry you are in. The higher influience of the websites pointing at yours, the more important the search engines will consider your site. If, for example, corporate websites or media websites are pointing to your site, you have struck gold, and your ranking will be at top in the world of search engines.