Cloudflare has some performance and caching options available that can make page loads faster. However, Cloudflare can sometimes cause issues for sites, so you may want to exclude certain URLs from Cloudflare's caching.
To exclude a specific URL, use the Page Rules feature in Cloudflare at Settings >> Page Rules. In Page Rules, you specify a pattern that defines when the rule is triggered. These patterns can be simple, such as a single URL, or complicated, and can include multiple wildcards.
You can read more about how to exclude URLs in Cloudflare's documentation here: