Website Usability is the effectiveness and efficiency of a website.
The user should be able to accomplish the things they want to do while visiting your website. You want to create and provide a smooth experience for the user.
There are good websites and there are bad websites. Visitor come back to good websites, they also become customers. Bad websites are difficult to navigate, slow to download and frustrate the user. Therefore the user does not return.
SEO (Search Engine Optimization) is a process
wherein a website is redeveloped to properly
communicate your keywords to search engines. To
do the job right and to avoid redevelopment, SEO
should be done at the beginning of development and
throughout the planning, design and building process
of the website.
Properly communicating your keywords to search
engines gives your website the opportunity to rank
high among major search engines.
Design website with both search engine and user in
mind. Website should not only be user friendly but
search engine robots friendly. If you are wondering
what a search engine Robot sees, look at the website
source code.