No, we do not offer FREE CDN. There are some agencies use FEE CDN is misleading marketing.
The so call FREE CDN is using CloudFlare free plan. The grade A result from GTMetrix is because it tests based on CloudFlare’s Hong Kong server.
Most of the time it will reroute the site visitor to somewhere farther, for example like US. It actually much slower to browse in real-life test in Malaysia.