What to measure
Review total installation size, file count, and change between readings. A single value shows current usage; the trend reveals whether a problem is developing.
What usually consumes space
Check wp-content/uploads, local backups, caches, debug logs, and old packages. Do not remove files without a backup and confirmation that the site no longer uses them.
How to prevent the limit
Set a warning threshold, repeat measurements regularly, and review the fastest-growing sites. Host Gauge provides a local reading; Quota Control Hub brings multiple sites into one view.