Is it a must to have a gap after the comma? I saw an seo company doing well in the rankings without a gap but they had a comma after each 2 words.
In my example the comma comes after each one word and I just want to make sure that its not “spam”.
If all the words are related to the content of the site, but are not synonyms, then you should be fine - but remember that beyond the home page, each individual page should have a title that relates to that particular page.
I would recommend having a space after the comma for legibility, and it makes your site look more professional and more credible.