What are the benefits of Cloudflare services and what are the differences between paid and free services? Keywords will improve nor not on google?
Cloudflare has nothing to do with search keywords or SEO. There is a slim chance that a site’s search engine ranking could marginally improve when on Cloudflare, but that is very hypothetical. Generally, Cloudflare’s purpose is not SEO but security and performance related.
What are the charges for one month?
Right on their homepage