netbox-community-netbox/docs/additional-features/caching.md

Caching

To improve performance, NetBox supports caching for most object and list views. Caching is implemented using Redis, and django-cacheops

Several management commands are avaliable for administrators to manually invalidate cache entries in extenuating circumstances.

To invalidate a specifc model instance (for example a Device with ID 34):

python netbox/manage.py invalidate dcim.Device.34

To invalidate all instance of a model:

python netbox/manage.py invalidate dcim.Device

To flush the entire cache database:

python netbox/manage.py invalidate all