Web address

In searching earlier posts for assistance on tachos I came across RexLan's reference to his site address. It read

<A href='http://www.tach.rex-deb.net ' Target=_Blank>External Web Link</a>.

Inserting that portion between the 's, or the full reference, into the IE6 address line results in the advice that the site is not available.

Would someone kindly explain how to use this address please?
Looks like the site has been taken down. Google has cached paged with text bu no pictures. Even the wayback machine failed to find the site. Sorry