Is there anything I should know about using WordPress and Cloudflare with our gracious host x10 prior to flipping the DNS switch? Currently my site is at domain.tld but it looks like it will need to switch to www.domain.tld . Is this true? Should I change all my WordPress URLs to www.domain.tld prior to the change? Are there any other gotchas? My site is currently under 700 kb and typically loads in 1.5-2.5 seconds. Will I see any performance improvements?