They do. The online viewer is just a convenience -- the bulk of that part of the site is about dats.
https://datomatic.no-intro.org/index.php?page=download&s=45&op=db
Click prepare and then download. It will give you an XML with the serials for the corresponding dump (10.4 megs uncompressed at time of posting). Should be easy enough to import that into your XML reader of choice and delete any parts you don't care about. Looking at it in a spreadsheet now (libreoffice calc, I clicked data dropdown and then XML source, click the game part and it should select things, set click on the A1 cell in a blank sheet when it asks for a thing to put it in, serials landing in column AV through BB having done the above, unlicensed stuff, homebrew, wiiware, things pulled from official emulators and more maybe lacking such things but... you are already in a spreadsheet.