I am currently using a free hosting account and noticed that my disk space usage has reached approximately 465.3 MB out of the 512 MB limit.

I would like to know:

1. Which files or directories are using the most disk space?
2. Is there any tool available to analyze disk usage in DirectAdmin/File Manager?
3. Are backups, logs, cache files, or email data included in the disk usage calculation?
4. What is the best way to reduce storage usage without affecting my website?
5. Is it possible to request additional disk space or upgrade to a plan with higher limits?

I have attached a screenshot showing the current disk space usage...

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