2257 notification question

[Hunter_ST]

Anyone know if the 2257 notification can be an image (gif, jpg) rather than html text to prevent Google searches from indexing the contact person's name in the 2257?

Or is a robots.txt file the way to go?

[JFPdude]

robots.txt or image there is no requirement or type of media you use it just has to be there.

[KRL]

Image would suffice I'm sure.