Website usability is essentially the ease of use of a website. There are a variety of factors that go into usability including things like font, page load times, site search accessibility etc. It's important to ensure a high degree of usability so that more users can easily access and utilize your website. So how do you improve website usability?
Keep load times reasonable.
Users are going to go to another website if a page takes too long to load. Users are fickle. They aren't going to sit around waiting for your website to perform better.
Use an easy to read font/color scheme.
What good is a website if a user can't read any of the content on it? Pick a normal font and color scheme to make life easy on your users. The last thing you want to do is burn your customers' retinas.
Another important factor in website usability is employing an intuitive navigation system. Make sure all the important sections of your website are easy to find and access in the nav system. It's important to also ensure that your nav system isn't overly complicated. Don't include too many menu items. Stick to the basics to keep it as streamlined as possible.
Keep copy concise and explanatory.
A website with a high degree of usability makes great use of its copy. It's concise, easily digested, and very informative. There isn't much filler to discourage or frustrate users.
Make sure headings are clear and descriptive.
People don't read website copy word for word. They skim and scan the entire page for what's important. That's why using clear and descriptive headings is useful. They can often replace a long-winded paragraph, and are much more user friendly. Would you rather read a sentence or five sentences to understand the same message? Exactly.
Make URLs meaningful and user-friendly.
Using meaningful URLs that have keywords in them can be helpful for users and search engines alike. They can help users understand where they are within a website, or the purpose of a page.