Everytime you download a manga, chapter or list. The application will write download.db file into manga folder. But what does it do ? does it dangerous ? the file seems suspicious.

## Wait isn’t that same behaviour as previous one ?#

Yes, download tracker is designed to avoid rate-limit frequently from MangaDex API on some formats. Also it check latest chapters on any volume and single formats. So let’s say you already downloaded Volume 1, but there is new chapter on Volume 1. The application will re-download Volume 1.

The download tracker can verify downloaded chapters and images on all formats. Previously, the application only verify images which only available to raw formats (raw, raw-volume, raw-single). With this, the application will know what chapters and images is corrupted or missing and will re-download the corrupted or missing chapters and images.
You can, use --no-track to turn off download tracker feature.
mangadex-dl "insert MangaDex URL here" --no-track