To Access the Site Meta Tags area:

1) Open the website editor
2) To the left of the editor, click the Settings icon
3) From the Settings options, click SEO (Google)
4) When the SEO settings options pop-up, the first thing you need to do is select the checkbox that reads 'Allow search engines to find my website'

Now fill in the Site Title, Site Description and Keywords, following this advice.

When you're done updating this information, click Done and Save your changes.

Site Title:

Your Site Title is the headline of your website. It is not visible on your webpage but appears at the top of your browser window.

In Google and other search engines your Site Title is displayed as the headline of your website.

Search engines read your website's Site Title in the same way we read a headline of a newspaper. Your Site Title is also used:

• When saving to favorites.
• When sharing your website on Facebook/ Google+ and other sharing platforms.

Important points for writing your Site Title:

• Site Title must not exceed 50 characters long, spaces included.
• Begin your Site Title with your business name.
• If you are a local business include your city/state/county/suburb. Local information helps Search Engines to direct local users attracting more visits from local searches.
• Try incorporating your most relevant search phrase in your Site Title i.e. the word you think a client would type into a Search Engine search to find your website.
• Make sure your Site Title is easy to read and attractive - A relevant and descriptive Site Title is more likely to attract users to 'click' in Search Engine results.
• Use the pipe sign (|) to distinguish different parts in your Site Title.

Site Title example: Hair By Alla | Hairstylist in La Verne, Los Angeles

Site Description:

Description provides the user a summary of what your website is about. It is not visible on your webpage but appears below your Site Title in search engine results.

Important points for writing your Description:

• Description must not be less than 50 characters or exceed 160 characters (Google trims the description after 160 characters), spaces included. Use this link to check the character count of your site description.
• Your Description is an opportunity to advertise your website. It allows a user to know what your website is about in relation to what they are looking for.
• Incorporate your relevant search phrases, but also create a compelling description to entice users to click.
• The content of your Description must be relevant to your website.

Keywords:

Keywords: words or (groups of words) entered into search engines in order to get matching and relevant results.

You can promote your site by adding up to 10 keywords with the SEO settings area. Keywords are words or short phrases that describe your website content and should include words that people may use to search for you.

You can make a list of keywords to focus on when you optimize your website. Try and imagine what users would type into Google, to find your type of product or service. Each "keyword" can be 1-4 words long.
There are also several tools that can help you determine the best keywords for your particular website. Google's Keyword Tool is free, while WordTracker requires pay. These tools take into account the popularity and competition of your keywords, so you're not wasting time and effort competing for a keyword that is so popular you simply will not rank the highest for.

Find more information about keywords on the Wix Blog.