That's why, at least in the UK, we use "dub dub dub".
(my co-workers understand this, and I think it's growing on a few. One still resists.)
Citation needed.
"Go to foobar.com"
"It's not working"
"Try with dub dub dub"
As an aside, it's so painful to listen to radio commercials from advertising agencies that thought it was a good idea to include "www" in the script. "Just go to double-yew double-yew double-yew..."