Without the proxy enabled (gray cloud), Cloudflare's DNS is not different from others. With it enabled (orange cloud), we get a lot of free benefits. https://secure.plusplushosting.net/knowledgebase/714/Advantages-of-the-CloudFlare-system.html has a nice list of these benefits.https://support.cloudflare.com/hc/en-us/articles/360019093151#h_dns_cloud_orange_or_grayFor DNS records proxied to Cloudflare, Cloudflare's IP addresses are returned in DNS queries instead of your original server IP address. This allows Cloudflare to optimize, cache, and protect all requests for your website.https://support.cloudflare.com/hc/en-us/articles/4424646531597-Using-Cloudflare-with-WP-EngineWPEngine even has its own special orange cloud setup.
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