Cache

It is temporary storage. While it improves speed, it can consume storage space over time, sometimes leading to issues if the files become outdated or corrupt.

When you visit a website, the cache stores elements like images and layout data. Upon returning, the site loads from this local cache rather than downloading everything anew. Why Clear Your Cache? It is temporary storage

Go to Safari in Settings, then tap "Clear History and Website Data". Clear your cache and cookies on iPhone - Apple Support It is temporary storage