I've downloaded Hardware database CSV dump data from the wiki, which is stated to be updated daily, and the ZIP file indeed has current (today) date.
https://openwrt.org/supported_devices#hardware_database_csv_dump
The CSV contains only 2236 database entries, while the website has 2579 entries.
Here's the example of missing Cudy routers compared to the website:
1 post - 1 participant