Cloudflare for Magento performance: where it helps
How to use Cloudflare with Magento without caching checkout, breaking admin or hiding origin performance problems.
Cloudflare is not a replacement for a healthy origin
Cloudflare can reduce origin load dramatically, but it will not fix broken indexing, slow database queries, bad modules or oversized product pages. Start with the origin, then use Cloudflare to keep good pages fast.
Safe paths to cache
Category, product and CMS pages are normally good candidates for aggressive caching if full-page cache is already behaving. Checkout, customer account, basket, admin and payment callbacks must bypass cache.
Useful rules for Magento
Use page rules or cache rules deliberately, keep admin paths restricted, set security headers, and watch cache hit ratio alongside conversion and checkout error rates.