Hope you all are fine.
Need a help -
"If buyer wants to see the sample of our work (web design work), then how can I show them my work?
Is Directly sending the URL to client is valid in Fiverr? "
No, you can’t.
Here’s the list of allowed URLs:
Its restricted for gig description, but are your sure that website link restricted in message to show a demo / sample website?
Yes - the list of allowed URLs is site-wide, not just for the gig description.