perhaps impossible achieve like:
keep url same load page alternative site. domain input url in browser. website loaded through site domain specific url domain needs stay visible , not long site domain url
with below settings see full url of site domain need keep @ domain. full site domain url needs hidden , show short domain.
rewritecond %{http_host} ^(my domain)$ [or] rewritecond %{http_host} ^www.(my domain)$ rewriterule ^/?$ "http://(site domain)/cms/?option=com_content&view=article&id=150&itemid=516" [r=301,nc,l]
edit:
so clear question:
example1.com example2.com example3.com etc
always need show display.org
but loads page: http://(sitedomain)/cms/?option=com_content&view=article&id=150&itemid=516