Google recommends that all websites use https:// when possible. The hostname is where your website is hosted, commonly using the same domain name that you'd use for email. Google differentiates between the "www" and "non-www" version (for example, "www.example.com" or just "example.com"). When adding your website to Search Console, we recommend adding both http:// and https:// versions, as well as the "www" and "non-www" versions.
Forget whether or not to put your keyword in it, make it relevant to a searcher and write it for humans, not search engines. If you want to have this 20-word meta description which accurately describes the page you have optimised (for one or two keyword phrases) when people use Google to search, make sure the keyword is in there. There is more likelihood it will be used by Google as your snippet description in SERPs.
QUOTE: “The preferred domain is the one that you would liked used to index your site’s pages (sometimes this is referred to as the canonical domain). Links may point to your site using both the www and non-www versions of the URL (for instance, http://www.example.com and http://example.com). The preferred domain is the version that you want used for your site in the search results.” Google, 2018
Sometimes I think if your titles are spammy, your keywords are spammy, and your meta description is spammy, Google might stop right there – even they probably will want to save bandwidth at some time. Putting a keyword in the description won’t take a crap site to number 1 or raise you 50 spots in a competitive niche – so why optimise for a search engine when you can optimise for a human? – I think that is much more valuable, especially if you are in the mix already – that is – on page one for your keyword.
Luckily, there are plenty of DIY tools to help you boost and maintain your site’s search engine ranking. Some are free, while others come in a variety of paid versions to accommodate businesses of all sizes. All offer different tool sets to help you achieve various goals. The roundup below shows the key features and pricing info for 30 top Mac SEO tools so you can quickly and easily decide which one works best for you.