Looking on archive.org of the earliest exchange webpages, it's pretty amazing that these pages were considered cutting edge and simultaneously the technology of the era was good enough for electronic trading. Click on the photos to enlarge and I linked the old page in the caption, a lot of the links w/in the weblink don't work because they weren't archived but some do.
cbot.com from Oct 31, 1996
cme.com from Dec 11, 1997
simex.com from Dec 28, 1996
liffe.com from Dec 20, 1996
bmf.com.br from Oct 20, 1996
sfe.com from Dec 3, 1998
hkfe.com from Dec 21, 1996
matif.fr from Oct 22, 1996
kcbt.com from Nov 8, 1996
nyce.com from May 15, 1997
cbot.com from Oct 31, 1996
cme.com from Dec 11, 1997
simex.com from Dec 28, 1996
liffe.com from Dec 20, 1996
bmf.com.br from Oct 20, 1996
sfe.com from Dec 3, 1998
hkfe.com from Dec 21, 1996
matif.fr from Oct 22, 1996
kcbt.com from Nov 8, 1996
nyce.com from May 15, 1997