HTTP Method to Caching Potential

HTTP Method	Safe?	Idempotent?	Cacheable?	Notes
GET	✅ Yes	✅ Yes	✅ Yes	Most commonly cached method. Responses can be cached by browsers/CDNs.
HEAD	✅ Yes	✅ Yes	✅ Yes	Same as GET, but no response body. Often used for checking metadata.
POST	❌ No	❌ No	⚠️ Sometimes	Not cacheable by default, but can be with explicit headers.
PUT	❌ No	✅ Yes	❌ No	Generally used for updates. Not cacheable.
DELETE	❌ No	✅ Yes	❌ No	Removes resources. Not cacheable.
PATCH	❌ No	❌ No	❌ No	Partially modifies resources. Not cacheable.
OPTIONS	✅ Yes	✅ Yes	⚠️ Rarely	Used for CORS preflight. Technically cacheable but rarely done.
CONNECT	❌ No	❌ No	❌ No	Used for tunneling (e.g., HTTPS). Not cacheable.
TRACE	✅ Yes	✅ Yes	❌ No	Used for diagnostics. Not cacheable.