well if you google the file name, the first result is archive.org
(at least on my google 
)
apparently they have archived the download page and the install files back then.
Do I trust archive.org more than CNet ? yeah, but that’s not a high bar 
but again, it’s not the official source, it’s an archive made by the community. so ultimately, your choice.
the person who added it to the archive also added a few useful things, printer drivers, a playmobil game.
Plan B is what Dave says, sketchup free has the advantage to run in your browser, everything is saved online but you can download your files.